HST UV Initiative Programs

The UV Initiative, in place since Cycle 21, recognizes the unique capability that Hubble has in accessing the ultraviolet (UV) portion of the electromagnetic spectrum (wavelengths less than 3200 Angstroms). Nearly all categories of proposals (Small, Medium, Large, and Treasury GO proposals, as well as Regular Archival, Legacy Archival, and Theory proposals) are eligible for the UV Initiative. The science programs being conducted under the UV Initiative span almost all science categories. The links below give bibliographical information related to each accepted UV Initiative program.

Below are two tables listing the two types of programs: General Observer programs and Archival programs. The planned orbit counts may not be completely accurate especially for multi-cycle programs.

General Observer Programs

These tables are compiled on the fly and may take a few seconds to load. Click on column heading to sort.

First Cycle for the Program Proposal    Number(s)    Title PI Planned External Orbits* Planned Parallel Orbits* Number of Refereed Papers Associated with Program
2414809An Accurate Measurement of the IGM HeII Lyman Alpha Forest toward a Newly Discovered UV-bright Quasar at z>3.5Worseck, Gabor 400
2414806SAFE: Star clusters, lyman Alpha and Feedback in Eso338-04Oestlin, Goeran 1800
2414799Why the Different Looks of Changing-Look Quasars?Eracleous, Michael 1300
2414795Observing an artificial meteor: Cassini's entry into the atmosphere of SaturnCrary, Frank 100
2414794Planetary Nebulae in the Open Clusters of M31Bond, Howard E.600
2414791Assessing the dependency of the fine structure constant on gravity using hot DA white dwarfsBarstow, Martin 1200
2414784HAZMAT: Habitable Zones and M dwarf Activity across TimeShkolnik, Evgenya L.11800
2414781Ultraviolet Spectroscopic Monitoring of an ASAS-SN Tidal Disruption EventKochanek, Chris S.2201
2414778Hiding in Plain Sight: The Low Mass Helium Star Companion of EL CVnGies, Douglas Russell400
2414777Deciphering Quasar Outflows and Measuring their Contribution to AGN FeedbackArav, Nahum 4000
2414772Observing gas in Cosmic Web filaments to constrain simulations of cosmic structure formationWakker, Bart P.6800
2414768UV Signatures of Shock Interaction in an Eta Carinae AnalogSmith, Nathan 500
2414767The Panchromatic Comparative Exoplanetary Treasury ProgramSing, David Kent49803
2414765The Unexplored Domains of the s-ProcessRoederer, Ian U.4000
2414761Mapping the UV Extinction Properties of PHAT Stars in M31Clayton, Geoffrey C.3000
2414759What Happens in the Atmospheres of Hot Horizontal Branch Stars Near 20, 000K?Brown, Thomas M.600
2414757Hydrogen Escape from a Rocky Earth-Size ExoplanetBerta-Thompson, Zach K.1400
2414755Understanding Callisto's AtmosphereSpencer, John R.800
2414753Supernova 1987A at 30 yearsFransson, Claes 2200
2414752Variability in the Escape of Water from MarsClarke, John T.1000
2414751Resolving Fe-rich Neutral ISM in a Massive Quiescent Galaxy at z~0.4Zahedy, Fakhri S301
2414749Low redshift Lyman-alpha blobsSchirmer, Mischa 600
2414746Stellar Laboratories: High-precision Atomic Physics with STISRauch, Thomas 300
2414744A Definitive UV-Optical Template for Iron Emission in Active Galactic NucleiPark, Daeseong 1300
2414738A Far Ultraviolet Study of Globular Clusters in NGC 3115Kundu, Arunav 1600
2414737Unveiling the nature of the only main-sequence pulsar CU VirKrticka, Jiri 500
2414736Connecting Variability and Metals in White DwarfsKilic, Mukremin 400
2414735Observation of OH in Beta Pictoris exocometsKiefer, Flavien 300
2414731, 15251Si I and C I emission from zeta Aurigae (K4 Ib + B5 V): New Generation Diagnostics of Chromospheric StructureHarper, Graham M.300
2414729A New Twist in the Quasar Radio Dichotomy: The Case of the Missing OutflowsGanguly, Rajib 1900
2414724Searching for a radio millisecond pulsar in a low-mass X-ray binaryDegenaar, Nathalie 400
2414722A Local Laboratory for Studying Positive Feedback from Supermassive Black HolesCroft, Steve 700
2414720Photometric Mapping of the Galactic Outflow in NGC 7552Chelouche, Doron 1400
2414713Binarity and Accretion Activity in AGB Stars with Variable UV and X-Ray EmissionSahai, Raghvendra 800
2414712HST-COS Ultraviolet Spectroscopy of B[e] Supergiant Stars in the Magellanic CloudsSahai, Raghvendra 1300
2414708Probing the circumgalactic medium of galaxies with deep observations.Mathur, Smita 2500
2414703Measuring residual H2 gas from small to large gaps in protoplanetary disks: different pathways to planets?Banzatti, Andrea 2000
2414694SDSSCGB-46589.1 -- a Lyman Alpha Blob at Low Redshift?McCandliss, Stephan Robert500
2414693Testing the Torus Origin of the Broad Absorption Line Outflow in WPVS 007Leighly, Karen Marie400
2414691Unraveling the oscillations of the richest pulsating hydrogen-atmosphere white dwarfHermes, JJ 600
2414690Identifing the last unkown emission component in the Herbig system HD 163296Guenther, Hans Moritz300
2414687The Origin of the Leading Arm of the Magellanic StreamFox, Andrew J.600
2414684What is a Galaxy Halo Really Like?Bowen, David V.2200
2414683Before the Burst: The Properties of Rapidly Rotating, Massive SupergiantsBouret, Jean-Claude 1500
2414681Tracing Galactic Outflows to the Source: Spatially Resolved Feedback in M83 with COSAloisi, Alessandra 4000
2414679Extremely Metal Poor Galaxies with HST/COS: Completing the Groundwork for JWSTStark, Daniel P.1200
2414675Metal Evolution and TrAnsport in the Large Magellanic Cloud (METAL): Probing Dust Evolution in Star Forming GalaxiesRoman-Duval, Julia Christine10100
2414674Far UV Spectroscopy of Superluminous SupernovaeQuimby, Robert M.1400
2414673A Definitive Test of Rotational Mixing in Massive StarsProffitt, Charles R.1400
2414672Tracing the Earliest Nucleosynthesis from Elements Just Past the Iron Peak in Extremely Metal-Poor DwarfsPeterson, Ruth C.4400
2414665Ultraviolet Spectra of a Normal Standard CandleBrown, Peter J.1400
2414657The wind variability in oscillating massive starsOskinova, Lida 1200
2414656How does ionizing radiation escape from galaxies?Orlitova, Ivana 1300
2414655Probing Warm-Hot Gas in the Outskirts of Galaxy Clusters Using Quasar Absorption LinesMuzahid, Sowgat 1501
2414646A White Dwarf with an Actively Disintegrating AsteroidXu, Siyi 1200
2414641Short Orbital Period Recurrent Novae as Supernovae Type Ia ProgenitorsSion, Edward M.600
2414640Investigating the FUV Emission of Young M dwarfs with FUMES: the Far Ultraviolet M-dwarf Evolution SurveyPineda, John Sebastian1600
2414637Wide band spectra of nova-like variables: A confrontation of observations with theoryLong, Knox S.500
2414635Lyman continuum leaking in luminous compact star-forming galaxiesIzotov, Yuri I.3400
2414634HST-Juno synergistic approach of Jupiter's magnetosphere and ultraviolet aurorasGrodent, Denis C15100
2414631Resolving the Nuclear Structure of the Canonical Radio Galaxy M87Danforth, Charles W.1000
2414628The Evolution of C/O in Low Metallicity Dwarf GalaxiesBerg, Danielle 2000
2414625Connecting the lower and upper atmospheres of a warm-Neptune. Implications for planetary evolution.Ballester, Gilda E.1000
2414623A Novel Measurement of Turbulence and Bulk Flows in the Hot Halo of M87Anderson, Mike 1400
2414618Ultraviolet Flashers in M87: Rapidly Recurring Novae as SNIa ProgenitorsShara, Michael 5300
2414617Auroral properties of the brown dwarf LSR J1835 + 3259: The UV perspectiveSaur, Joachim 500
2414615The Evaporating Exosphere of a Young PlanetNewton, Elisabeth R.1600
2414614Death or Survival? Determining the nature of SNe IIn-P explosionsMauerhan, Jon 300
2414610A Legacy Imaging Survey of M33.Dalcanton, Julianne 10800
2414609Psyche's UV Reflectance Spectra: Exploring the origins of the largest exposed-core metallic asteroidBecker, Tracy M400
2414604Connecting the shape of the FUV spectrum with disk morphology: a combined HST and ALMA study of young stellar objects in LupusManara, Carlo F.1500
2414603Ulraviolet fluxes and dynamical structure in the pulsating atmosphere of helium star V652 HerJeffery, C Simon800
2414602The Perseus Project: Probing Metal Mixing, Dust Destruction, and Kinematics in the Vertical Extension of the Perseus ArmHowk, Jay Christopher1300
2414601The Energetically Complete Picture of a Starburst SuperwindHayes, Matthew James400
2414600SDSS 1240+6710: a partially burnt supernova remnantGaensicke, Boris T.400
2414599UV Spectroscopic Signatures from Type Ia Supernovae Strongly Interacting with a Circumstellar MediumFox, Ori Dosovitz1500
2414598The Incredibly Long-Lived SN 2005ipFox, Ori Dosovitz500
2414597An Ultraviolet Spectral Legacy of Polluted White DwarfsFarihi, Jay 6600
2314277Probing Hot Gas in Spiral-Rich Galaxy GroupsStocke, John T.4501
2314276Understanding the star formation environment of a very low redshift, low luminosity, long Gamma Ray BurstStanway, Elizabeth R.100
2314275Tracing the CMB Cold Spot supervoid using HI gas cloudsShanks, Tom 1500
2314273, 14813, 15359A highly dynamical debris disc in an evolved planetary systemManser, Christopher James600
2314272, 14812Long-Term Ultraviolet Spectroscopy of a Tidal Disruption Event at only 90 MpcMaksym, Walter Peter2200
2314268Project AMIGA: Mapping the Circumgalactic Medium of AndromedaLehner, Nicolas 9300
2314267, 14811The Grand Finale : probing the origin of Saturn s aurorae with HST observations simultaneous to Cassini polar measurementsLamy, Laurent 3100
2314265Crossing the redshift desert: ionizing background radiation and intergalactic hydrogen at z ~ 1Kim, Tae-Sun 5400
2314264A New Dual Perspective of Mutli-phase Galaxy OutflowsKacprzak, Glenn G.1500
2314257Far UV spectroscopic measurements of the deuterium abundance of cometsBodewits, Dennis 1000
2314256, 14810, 15358High-Precision Proper Motions in the M87 JetBiretta, John A.400
2314255A First Look at the Late Stages of Accretion in Tidal Disruption Flaresvan Velzen, Sjoert 800
2314250The ultraviolet light curve and spectrum of PSR B0540-69, the Crab Twin.Mignani, Roberto 600
2314249The old pulsar PSR J0108-1431, a key target to understand the long-term evolution of neutron starsMignani, Roberto 800
2314247Confirmation of an Intermediate-Mass Black Hole in an Extragalactic Globular ClusterIrwin, Jimmy A.1000
2314246The Fastest Rotating StarsGies, Douglas R.400
2314245The winds of the most Fe-poor massive stars of the Local Group: Sextans-AGarcia, Miriam 2600
2314243True Jet Rotation Probed in NUV Jet CoreCoffey, Deirdre 900
2314242Deep Multiwavelength Campaign on an AGN Outflow: Absolute Abundances and the Warm Absorber ConnectionArav, Nahum 900
2314240Mapping the circumgalactic medium of two large spiral galaxiesWakker, Bart P.2801
2314232STIS Observations of Metal-Poor Stars: Direct Confrontation with Nucleosynthetic PredictionsRoederer, Ian U.2000
2314231The First Detections of Phosphorus, Sulphur, and Zinc in a Bona-Fide Second-Generation StarRoederer, Ian U.1801
2314229Characterizing a Magnetic CV Associated with a PNe via COS UV SpectroscopyReynolds, Mark 200
2314228Thermal Equilibration and Cosmic-Ray Acceleration in Astrophysical Shocks: UV Spectra of the SN1006 RemnantRaymond, John C.1500
2314225Small Magellanic Cloud Ultraviolet Dust Extinction: A Focused Study of Four Sightlines Near a Molecular Cloud with Variable 2175 A bumpsGordon, Karl D.400
2314222Full HST coverage of a comet-like exoplanet in transitEhrenreich, David 1201
2314221HST Confirmation and Characterization of a Potentially Habitable WorldEhrenreich, David 500
2314214The Suppression of Convection in Magnetic White DwarfsTremblay, Pier-Emmanuel 300
2314213Defining New IR-Bright Flux Standards for Cosmology ApplicationsTremblay, Pier-Emmanuel 401
2314209The Final UV Frontier: Legacy Near-UV Imaging of the Frontier FieldsSiana, Brian 4804
2314207Inventoring Gas in Debris Disks: UV Spectroscopy of Eta TelRoberge, Aki 400
2314202The Unprecedented Supernova Metamorphosis of SN 2014CMilisavljevic, Dan 800
2314201Lyman alpha escape in Green Pea galaxies (give peas a chance)Malhotra, Sangeeta 2002
2314194Precision Masses and Distances of Classical CepheidsEvans, Nancy R.700
2314193Footprints of the Magnetosphere: the Star- Disk Connection in T Tauri StarsEspaillat, Catherine 2000
2314190Trickles of Accretion: Catching a Final Glimpse of Gas in the DiskCalvet, Nuria 1100
2314184A Local Benchmark for High-Redshift FeedbackRupke, David 800
2314180The wind of ksi Per: a tomographic view of stellar wind dynamicsMassa, Derck L.1100
2314179FUVB Flat Fields for the COS FUV Blue ModesMassa, Derck L.200
2314176Measuring Absolute Abundances in NGC 5548 and Definitively Linking the UV and X-ray OutflowsKriss, Gerard A.900
2314174Probing Extended Star Formation in the Young Massive Cluster NGC 1850Goudfrooij, Paul 202
2314173A Multiwavelength Study of the Nature of Diffuse Atomic and Molecular GasFederman, Steven R.1200
2314171Characterizing the Circumgalactic Medium of Luminous Red GalaxiesZhu, Guangtun 3300
2314168COS Views of He II Emitting Star Forming Galaxies: Preparing for the JWST EraStark, Daniel P.2000
2314162The magnetic activity puzzle of the super-earth host star KOI-314Poppenhaeger, Katja 100
2314161The Intersection of Atomic Physics and Astrophysics: Identifying UV Fe I Lines from Metal-Poor Turnoff StarsPeterson, Ruth C.7402
2314155Using Stellar Evolution as a Clock to Watch the Dynamical Evolution of a Globular ClusterKalirai, Jason S.500
2314152Hot gas cooling and turbulence in the 3C326N radio-galaxyGuillard, Pierre 500
2314151Constraining Pop III supernova energies and the formation of the first low-mass stars with the iron-poor star HE1327-2326 (with [Fe/H] = -5.4)Frebel, Anna 2900
2314145Characterizing Circumgalactic Gas around Passive GalaxiesChen, Hsiao-Wen 3300
2314144An Ultraviolet View of Overluminous Type Ia SupernonovaeBrown, Peter J.700
2314143Probing the nature and evolution of the oldest known planetary system through Lyman-alpha observationsBourrier, Vincent 1801
2314140Using UV-bright Milky Way Halo Stars to Probe Star-Formation Driven Winds as a Function of Disk Scale HeightWerk, Jessica 3000
2314137Damped Lyman-alpha Systems in the Disks of Low-z SDSS Galaxies on Top of QSOsStraka, Lorrie 2000
2314135Are High-Redshift Spectroscopic Black Hole Mass Estimates Biased?Richards, Gordon T.2500
2314134Spectral Diagnostics for the Reionization Era: Exploring the Semi-Forbidden CIII] Emission in Low Metallicity Green Pea GalaxiesRavindranath, Swara 1800
2314132The spatial distribution of hot stellar populations in M31's globular clustersPeacock, Mark B.1200
2314131Origin of double peaks in Lyman-alpha spectra: diffuse halos or Lyman continuum leakage?Orlitova, Ivana 1800
2314130Down the Tubes: Vetting the Apparent Water-rich Parent Body being Accreted by the White Dwarf GD 16Melis, Carl 500
2314128The dawn of rocky planet formationHollands, Mark 800
2314127First Measurement of the Small Scale Structure of Circumgalactic Gas via Grism Spectra of Close Quasar PairsFumagalli, Michele 5500
2314125A Remarkable Recurrent Nova in M31: The Leading Single Degenerate Supernova Ia Progenitor Candidate(?)Darnley, Matthew James2001
2314121Probing the accretion disk in the Seyfert 1 NGC 4593Cackett, Edward M.2700
2314120He II emission as a tracer of ultra-low metallicity and massive star evolutionBrinchmann, Jarle 2400
2314117A Young White Dwarf with an Infrared Excess: Dust Disk or Substellar Companion?Xu, Siyi 100
2314112Monitoring the ice plumes of EuropaSparks, William B.601
2314111The SN Ia Candidate T Pyxidis: The Mystery of its High Accretion RateSion, Edward M.400
2314106Probing Ceres' exosphere and water vapor outgassingRoth, Lorenz 501
2314105Observing Jupiter's FUV auroras near Juno orbit insertionNichols, Jonathan D.4702
2314104The optical-UV extinction law in 30 DoradusMaiz Apellaniz, Jesus 1000
2314102The II Zw 40 Supernebula: 30 Doradus on SteroidsLeitherer, Claus 400
2314100A Direct Imaging Experiment to Determine the Origin of H2 Emission from M dwarf Exoplanetary SystemsFrance, Kevin 801
2314094Characterization of the extended atmosphere and the nature of the hot super-Earth 55 Cnc e and the warm Jupiter 55 Cnc bBourrier, Vincent 1300
2314090New FUV diagnostics of the atmosphere of the hot-Jupiter HD 209458b with HST/COSBallester, Gilda E.1200
2314089Far-UV observations of H, C, N and O in exocomets of Beta PicWilson, Paul Anthony701
2314085Circumgalactic gas at its extreme - the absorption properties of interacting galaxiesRichter, Philipp 1000
2314084Connecting Earth with its Galactic Environment: Probing Our Interstellar Past Along the Historical Solar TrajectoryRedfield, Seth 1400
2314082Connecting white dwarf rotation and debris accretionMaoz, Dan 1000
2314081Probing Supernovae Chemical Yields in Low Metallicity Environments with UV Spectroscopy of Magellanic Cloud B-type StarsLanz, Thierry 3500
2314080LyC, Ly-alpha, and Low Ions in Green Peas: Diagnostics of Optical Depth, Geometry, and OutflowsJaskot, Anne 5000
2314079Unveiling the Dark Baryons II: the First Sample of OVI Emission ImagingHayes, Matthew 3200
2314076An HST legacy ultraviolet spectroscopic survey of the 13pc white dwarf sampleGaensicke, Boris T.6700
2314075Long-Lost Companions: A Search for the Binary Secondaries of Three Nearby SupernovaeFox, Ori Dosovitz901
2314071How are HI Disks Fed? Probing Condensation at the Disk-Halo InterfaceBorthakur, Sanchayeeta 10001
2314070A Red Supergiant Mass Accurate to 1%Bennett, Philip D.200
2213875A Potential Paradigm Shift in our Understanding of Helium ReionizationWorseck, Gabor 2400
2213874Using Hubble to Measure Volatile Abundances and the D/H Ratio in a Bright ToO CometWeaver, Harold A.1000
2213872The GOODS UV Legacy Fields: A Full Census of Faint Star-Forming Galaxies at z~0.5-2Oesch, Pascal 1321322
2213862Measuring the Impact of Starbursts on the Circum-Galactic MediumHeckman, Timothy M.4901
2213861HST/COS FUV Spectrophotometry of the Key Binary Solar Twins 16 Cyg A&B: Astrophysical Laboratories for the Future Sun and Older Solar AnalogsGuinan, Edward F.1201
2213859Unveiling the circumstellar environment of the most extreme hot-JupitersFossati, Luca 602
2213858The environment of the rarest and most energetic supernovae: do pair-instability explosions exist in the nearby Universe?De Cia, Annalisa 404
2213853UV Spectroscopy of Newly Discovered Tidal Disruption FlaresCenko, Stephen Bradley1602
2213852How Galaxy Mergers Affect Their Environment: Mapping the Multiphase Circumgalactic Medium of Close Kinematic PairsBordoloi, Rongmon 3401
2213851The Origin of Intermediate-Luminosity Red TransientsBond, Howard E.400
2213846The COS Absorption Survey of Baryon Harbors (CASBaH): Probing the Circumgalactic Media of Galaxies from z = 0 to z = 1.5Tripp, Todd 9903
2213843A Candidate Recoiling Black Hole in a Nearby Dwarf GalaxyKoss, Michael J400
2213841, 14340Accurate masses and distances of the binary Cepheids S Mus and SU CygGallenne, Alexandre 1600
2213840The Smith Cloud: Galactic or Extragalactic?Fox, Andrew J.902
2213838UV Mapping of the Shocks in the Extremely Collimated Outflows of the Proto-Planetary Nebula Hen 3-1475Fang, Xuan 200
2213833Characterizing the cool and warm-hot intergalactic medium in clusters at z < 0.4Tejos, Nicolas 5300
2213832Absorption in the Cosmic Web: Characterizing the Intergalactic Medium in Cosmological FilamentsTejos, Nicolas 400
2213829The ice plumes of EuropaSparks, William B.1001
2213828, 14338Late nebular stage high resolution UV spectroscopy of classical Galactic novae: a benchmark panchromatic archive for nova evolutionShore, Steve 1500
2213827A New Opportunity to Detect Iron in the Most Iron-Poor Star KnownRoederer, Ian U.1000
2213822iPTF13bvn: First identification of the progenitor of a Type Ib supernovaFolatelli, Gaston 401
2213820Search for an evaporating ocean on the super-Earth HD 97658bEhrenreich, David 1502
2213807Unprecedented Tracking of the Unique Dwarf Nova GW Lib from Largest Amplitude Outburst to Quiescent PulsationsSzkody, Paula 402
2213806UV spectroscopy of the most massive overcontact binary known to date: on the verge of coalescence ?Sana, Hugues 800
2213805Io's Atmosphere Silhouetted in Transit by Jupiter Lyman-alphaRetherford, Kurt D.400
2213803Europa's Composition as Revealed by its AtmosphereMcGrath, Melissa A.500
2213801Probing Structure in Cold Gas at z <~ 1 with Gravitationally Lensed Quasar SightlinesKulkarni, Varsha 1800
2213800Heavy-metal, extreme chemistry and puzzling pulsation: ultraviolet clues to the formation of hot subdwarfsJeffery, C. Simon700
2213798A chemical inventory of Gas and Star-Grazing Exocomets in HD 172555Grady, Carol A.1000
2213797Early-Time UV Spectroscopy of Stripped-Envelope Supernovae: A New WindowFilippenko, Alex V.1601
2213795HST Observations of Comet-Induced Aurora on Mars during the Siding Spring EncounterClarke, John T.401
2213794Seasonal Dependence of the Escape of Water from the Martian AtmosphereClarke, John T.1302
2213788COS Views of Local Galaxies Approaching Primeval ConditionsWofford, Aida H.1800
2213784The First UV Spectra of a Hydrogen-Rich Superluminous SupernovaQuimby, Robert M.1400
2213783Thermal evolution of old neutron starsPavlov, George G.1301
2213782The Double Supernova in NGC 6984Milisavljevic, Dan 400
2213781WO-Type Wolf-Rayet Stars: the Last Hurrah of the Most Massive Stars?Massey, Philip 900
2213780The Nature of Newly Discovered Wolf-Rayet Stars in the LMCMassey, Philip 601
2213778Using ISM abundances in the SMC to Correct for Element Depletions by Dust in QSO Absorption Line SystemsJenkins, Edward B.4601
2213775Testing EUV Photoevaporation Models in Young DisksEspaillat, Catherine 600
2213774Feeding and feeback: The impact of AGN on the circumgalactic medium.Ellison, Sara 5200
2213769Trans-iron group elements in hot helium-rich white dwarfsWerner, Klaus 1100
2213759Extreme Variability in the M87 JetMadrid, Juan P.100
2213758The Age-Metallicity relationship of the Galactic Bulge via Stromgren PhotometryKoch, Andreas 14140
2213754, 14331, 14702The first mass and angular momentum loss measurements for a CV-like binaryDrake, Jeremy J.600
2213752An autopsy of dead planetary systems with COSDebes, John Henry300
2213749Baryon Structures Around Nearby Galaxies: Using an Edge-On Disk to Assess Inflow/Outflow ModelsBowen, David V.2600
2213744Green Peas and diagnostics for Lyman continuum leaking in star-forming dwarf galaxiesThuan, Trinh X.1707
2213743The Controversial Nature of the Diffuse UV Emission in Galaxies: Exploring NGC300Thilker, David 18160
2213736Contemporaneous Mid-UV Spectral Coverage of Pluto and Charon Coincident With the New Horizons EncounterSchindhelm, Eric Robert200
2213735A New Dwarf Galaxy Associated with an Ultra-Compact High Velocity CloudSand, David J.302
2213734Probing the extreme wind confinement of the most magnetic O star with COS spectroscopyPetit, Veronique 400
2213727Which Stars Go BOOM?Kalirai, Jason S.1201
2213721The Windy Milky Way GalaxyBenjamin, Robert A.1401
2213720Testing Models of the Black-Hole X-ray Source in the NGC4472 Globular Cluster RZ2109 with COS UV SpectroscopyZepf, Stephen E.1800
2213719Accretion of planetary debris onto the unique white dwarf GD394Wilson, David John800
2213714Tracing Hot Plasma in the RY Tau JetSkinner, Stephen L.800
2213710Constraining Models of Evolved UV-Bright Stars in the M31 BulgeRosenfield, Philip A.10100
2213709Constraining the Cosmic-ray Acceleration and Gamma-ray Emission Processes in IC 443Ritchey, Adam Michael1000
2213708Following the rapid evolution of the central star of the Stingray Nebula in real timeReindl, Nicole 501
2213707Mapping the Extreme Horizontal Branch instability strip in omega CentauriRandall, Suzanna 401
2213706Galactic Accretion Unveiled: A Unique Opportunity with COS and M33Peek, Joshua E. G.2802
2213704Testing the single degenerate channel for supernova IaParsons, Steven G.1002
2213703The donor star winds in High-Mass X-ray BinariesOskinova, Lida 900
2213700Confirming the most water-rich extrasolar rocky bodyMelis, Carl 201
2213697Does star formation proceed differently in metal-poor galaxies?Lebouteiller, Vianney 1100
2213694UV spectra of the icy Saturnian satellites: Understanding exogenic processes and NH3 in the systemHendrix, Amanda R.700
2213693The Ultraviolet Spectrum of CeresHendrix, Amanda R.401
2213679Europa's Water Vapor Plumes: Systematically Constraining their Abundance and VariabilityRoth, Lorenz 5802
2213659A New View of Dust at Low Metallicity: The First Maps of SMC Extinction CurvesSandstrom, Karin 54541
2213658Farewell to the Voyagers: Measuring the Local ISM in the Immediate Path of the Two Voyager SpacecraftRedfield, Seth 1400
2213656Unveiling the Dark Baryons: The First Imaging of Circumgalactic OVI in EmissionHayes, Matthew 2201
2213655How Lyman alpha bites/beats the dustHayes, Matthew 2000
2213654Ultraviolet Spectroscopy of the Extended Lyman Alpha Reference SampleHayes, Matthew 2900
2213651Disentangling Signatures of Ultra-high-energy Cosmic Rays from a Unique Gamma-ray BlazarFurniss, Amy Kathryn700
2213650The MUSCLES Treasury Survey: Measurements of the Ultraviolet Spectral Characteristics of Low-mass Exoplanetary SystemsFrance, Kevin 125010
2213648Uncovering the Putative B-Star Binary Companion of the SN 1993J ProgenitorFox, Ori Dosovitz300
2213646Understanding the Progenitor Systems, Explosion Mechanisms, and Cosmological Utility of Type Ia SupernovaeFoley, Ryan 36363
2213642The evolutionary link between low-mass X-ray binaries and millisecond radio pulsarsDegenaar, Nathalie 600
2113492Hubble Spectroscopy of Sungrazing Comet ISONWeaver, Harold A.1902
2113491Directly Probing >10^6 K Gas in Lyman Limit Absorbers at z > 2Tripp, Todd 6002
2113489Accretion Physics in Nearby FR1 GalaxiesStocke, John T.602
2113488Using Hubble to Resolve Fundamental Discrepancies in the Surface Composition of the Asteroid {21} LutetiaSteffl, Andrew J.401
2113483eLARS - extending the Lyman Alpha Reference SampleOestlin, Goeran 5500
2113473On the Nature of Highly Ionized Gas in the Halos of Normal Star-Forming GalaxiesHeckman, Timothy M.2500
2113471STIS Spectra of the Young SN Ia Remnant SN 1885 in M31Fesen, Robert A.3901
2113469Tol 26 and the EGB 6 Class of Planetary-Nebula Nuclei: What Happens to a Companion Star when a PN is Ejected?Bond, Howard E.301
2113468, 13876, 14342HST Observations of Astrophysically Important Visual BinariesBond, Howard E.1002
2113462Tracking the Winds of Red Giants from the Star to the ISMWood, Brian E.3601
2113460The Remarkable Ultraviolet Spectrum of Mrk 231Veilleux, Sylvain 704
2113456Searching for 300, 000 Degree Gas in the Core of the Phoenix Cluster with HST-COSMcDonald, Michael 1403
2113454, 13849, 14339The parallax and mass of the binary classical Cepheid V1334 CygKervella, Pierre 800
2113453The Elemental Compositions of Extrasolar Minor PlanetsJura, Michael 1201
2113452Coupling the emission of ionizing radiation and Lyman alphaHayes, Matthew 800
2113451A Study of PG Quasar-Driven Outflows with COSHamann, Frederick 1100
2113450Separating the Spectral Components of the Massive Triple Star System Delta OrionisGies, Douglas R.201
2113448The Closest Galactic Wind: UV Properties of the Milky Way's Nuclear OutflowFox, Andrew J.4902
2113444Constraining the size of intergalactic clouds with QSO pairsWakker, Bart P.2100
2113439Gas Physics in Cool-Core Clusters: the Virgo ClusterSparks, William B.1201
2113438Probing the atmosphere of a transiting ocean worldSparks, William B.301
2113436Ion Temperatures in a Collisionless Supernove Remnant Shock WaveRaymond, John C.1002
2113435Multiple populations in external globular glusters: the Fornax dSph, the LMC, and the SMCMonelli, Matteo 11112
2113434Transmission spectroscopy through the debris disk of FomalhautMeshkat, Tiffany 400
2113433Stellar Forensics V: A post-explosion view of the progenitor of SN 2011dhMaund, Justyn 402
2113432To be or not to be the progenitor: The question about Tycho-BKerzendorf, Wolfgang E200
2113430The temperatures, masses and pulsation modes of three ZZ Cetis in the Kepler fieldGreiss, Sandra 400
2113429, 13836Unveiling the X-ray/UV Connection in AGN Winds: the PG 1126-041 Case StudyGiustini, Margherita 800
2113427A Look Inside a Star: The Evolved Main-Sequence Channel and Hydrogen Depleted Ultracompact BinariesGarnavich, Peter 601
2113425Multiwavelength Test For A Standard Accretion Disk Around An Intermediate Mass Black Hole CandidateFeng, Hua 202
2113424The Necklace Nebula as a probe of close binary evolutionCorradi, Romano L.M.100
2113423Primordial lithium in z~0, metal-poor damped Lyman alpha systemsCooke, Ryan J.1201
2113421CSS 41177: an eclipsing double white dwarf binaryBours, Madelon C.P.201
2113419The First Ultraviolet Survey of Orion Nebula's Protoplanetary Disks and OutflowsBally, John 18180
2113415The First Study of the Quasar Broad Line Region in the <550A Extreme UVSyphers, David 500
2113413Star formation and Dissolution Across Dynamically Distinct Environments in NGC 1097Sheth, Kartik 401
2113407COS Gas Flows: Challenging the Optical PerspectiveMartin, Crystal 601
2113406Hydrogen, Deuterium and Nitrogen in the Beta Pictoris diskLecavelier des Etangs, Alain 201
2113402Remote sensing of the energy of Jovian auroral electrons with STIS: a clue to unveil plasma acceleration processesGerard, Jean-Claude M.302
2113398A Breakaway from Incremental Science: Full Characterization of the z<1 CGM and Testing Galaxy Evolution TheoryChurchill, Christopher W.11008
2113396Dual views of Saturn's UV aurora: revealing magnetospheric dynamicsBadman, Sarah V.1501
2113389The Ultraviolet Frontier: Completing the Census of Star Formation at Its Peak EpochSiana, Brian 484812
2113388Fundamental properties of novae outburst: Coordinated HST and XMM ToO observationsSchwarz, Gregory James601
2113383Measuring the Properties of Dwarf StreamsPutman, Mary E.801
2113382Warm Gas Flows in the Coma ClusterPutman, Mary E.2702
2113379Multiple stellar populations in the young Large Magellanic Cloud cluster NGC1856Milone, Antonino Paolo442
2113378Toward A Comprehensive Kinematic and Chemical Survey of the Young O-rich SNR 1E 0102-7219 in the SMCMilisavljevic, Dan 1000
2113377, 13789Essential UV Observations of Eta Carinae's Change of StateMehner, Andrea 1102
2113372Mapping the magnetospheric structure at outburst of the pre-main sequence close binary AK ScoGomez De Castro, Ana Ines1402
2113369The Dynamical Mass of Polaris, the Nearest CepheidEvans, Nancy R.200
2113368, 14332A Precision Measurement of the Mass of the Cepheid V350 SgrEvans, Nancy R.2400
2113367UV Line Emission from Million Degree Gas in a Galaxy Cluster CoreDonahue, Megan 1601
2113365Probing the nature of small-scale structure towards rho Oph stars: A new avenue in diffuse interstellar band researchCordiner, Martin A800
2113364LEGUS: Legacy ExtraGalactic UV SurveyCalzetti, Daniela 15415432
2113363Gauging dust settling in 5-10 Myr old disks with COSCalvet, Nuria 1401
2113358Trans-iron group elements in the hot white dwarf RE 0503-289Werner, Klaus 308
2113354COS Spectroscopy of White Dwarf Companions to Blue Stragglers in NGC 188Mathieu, Robert D.1200
2113353Flux calibration of the COS FUV modesMassa, Derck L.800
2113351UV Spectroscopy of a Peculiar White Dwarf SupernovaJha, Saurabh W.600
2113349Escaping Lyman Continuum in Strongly Lensed Galaxies at z=2.0-2.5Fan, Xiaohui 1801
2113347The Missing Baryons Around Nearby Dwarf GalaxiesBregman, Joel N.2101
2113346Advanced Spectral Library II: Hot StarsAyres, Thomas R.23008
2113342WARM AND HOT GASES IN AND AROUND CLUSTER GALAXIES AT Z=0.1-0.2Wang, Q. Daniel1101
2113340Detecting a Hot Companion to the Progenitor of the Type Ic Supernova 1994I in M51Van Dyk, Schuyler D.402
2113336Probing Io's putative global magma ocean through FUV auroral spot morphologyRoth, Lorenz 1001
2113330Mapping the AGN Broad Line Region by ReverberationPeterson, Bradley M17908
2113329Discovering the nature of the star-planet interaction at WASP-12bNichols, Jonathan D.2002
2113328Observing Ganymede's atmosphere and auroras with COS and STISNichols, Jonathan D.801
2113325Pushing COS to the {Lyman-}LimitLeitherer, Claus 2802
2113323Taking the Temperature of Explosive Stellar FlaresKowalski, Adam F.800
2113322Time-resolved FUV Spectroscopy of a Unique White Dwarf in the Kepler FieldHoard, Donald W.400
2113321COS Spectroscopy of the Stephan's Quintet Giant ShockGuillard, Pierre 1801
2113320Unveiling the nature of ultraluminous X-ray sources via UV spectroscopyGrise, Fabien 800
2113319COS Spectroscopy of Pulsating, Metal-Rich, Extremely Low Mass White DwarfsGianninas, Alexandros 1700
2113314Characterizing the Elusive Intragroup Medium and Its Role in Galaxy EvolutionBorthakur, Sanchayeeta 5101
2113313Determining attenuation laws down to the Lyman break in z~0.3 galaxiesBoquien, Mederic 1600
2113312The Evolution of C/O in Low Metallicity Dwarf GalaxiesBerg, Danielle 1301
2113310The life and death of H2 in a UV-rich environment - Towards a better understanding of H2 excitation and destructionAbel, Nicholas P.401
2113304Mysterious ionization in cooling flow filaments: a test with deep COS FUV spectroscopyTremblay, Grant R.2301
2113302COS Spectra of High-Redshift AGN: Probing Deep into the Rest-Frame Ionizing Continuum and Broad Emission LinesShull, J. Michael2202
2113301Deep COS Spectra of the Two Brightest Quasars that Probe the He II Post-Reionization EraShull, J. Michael3501
2113300Mapping MgII Emission in the M82 Superwind: A Rosetta Stone for Understanding Feedback in the Distant UniverseRubin, Kate 15150
2113298Radio-quiet Quasars with Extremely Weak Emission Lines: a New Perspective on Quasar UnificationPlotkin, Richard M.700
2113297The HST Legacy Survey of Galactic Globular Clusters: Shedding UV Light on Their Populations and FormationPiotto, Giampaolo 13113121
2113296The nuclear outflow in PDS 456O'Brien, Paul T.200
2113293Green Pea Galaxies: Extreme, Optically-Thin Starbursts?Jaskot, Anne 2405
2113290The hypervelocity hot subdwarf US 708 - remnant of a double-detonation SN Ia?Geier, Stephan 300
2113289RXJ0439.8-6809: the hottest pre-white dwarf, or the first double-degenerate supersoft X-ray source?Gaensicke, Boris T.302
2113288PG 1424+240: Too Distant to be Seen?Furniss, Amy Kathryn500
2113287Late-Time UV Spectroscopic Signatures from Circumstellar Interaction in Type IIn SupernovaeFox, Ori Dosovitz1601
2113286Understanding the Progenitor Systems, Explosion Mechanisms, and Cosmological Utility of Type Ia SupernovaeFoley, Ryan 36244
2113284Unravelling the evolution and accretion morphology of an extraordinary black hole X-ray binaryDegenaar, Nathalie 900
2113283Testing ISM Evolution Models with Gravitational LensesDai, Xinyu 400
First Cycle for the Program Proposal    Number(s)    Title PI Planned External Orbits* Planned Parallel Orbits* Number of Papers Associated with Program

Archival Programs

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First Cycle for the Program Proposal    Number(s)    Title PI Planned External Orbits* Planned Parallel Orbits* Number of Refereed Papers Associated with Program
2414591Project ALCATRAZ: Archival Lyman-Continuum and Theoretical Reionization Analysis vs. z: Where, When, & How Much Does LyC Escape from Galaxies & AGN?Windhorst, Rogier A.NANA0
2414588Surveying the CGM of Nearby GalaxiesWakker, Bart P.NANA0
2414585Understanding Jupiter's Cloud Scale and Energy Spectra from Archival DataSimon, Amy NANA0
2414576Variability of Jupiter's main auroral emission and satellite footprintsMoore, Luke NANA0
2414575A Flexible Cosmic Ultraviolet Background ModelMcQuinn, Matthew NANA0
2414570Understanding the Sequestration of Krypton Atoms in the Interstellar MediumJenkins, Edward B.NANA0
2414566Constraining Theroretical Wind Models using the Accelerating Outflows of Cool Evolved Stars as revealed by HubbleHarper, Graham M.NANA0
2414560Diagnosing the Multiphase Circumgalactic MediumEarl, Nicholas NANA0
2414551The COS revolution of AGN outflow scienceArav, Nahum NANA0
2314323An Archival Survey of Trace Neutral Interstellar Species: Comparing Diagnostics of Physical ConditionsWelty, Daniel E.NANA0
2314321Improving UV Continuous Opacities and Model Spectra for Cool StarsValenti, Jeff A.NANA0
2314315Can thermal instabilities drive galactic precipitation and explain observed circumgalactic structure?Silvia, Devin W.NANA0
2314314Spatial Modeling of the Topology of He II ReionizationShull, J. MichaelNANA0
2314308Characterizing group baryons and galaxies through EAGLE zoom simulationsOppenheimer, Benjamin DarwinNANA1
2314299A New Galactic Wind Model to Better Understand the Implications of QSO Absorption linesKatz, Neal S.NANA0
2314297Gaseous infall and star formation from redshift 2 to the Milky WayHill, Alex SNANA0
2314296Archival Investigations of the Local Environments of SupernovaeFoley, Ryan NANA0
2314293Metallicity and Azimuthal Angle Diagnostics of Inflows and Outflows: Interpreting HST Measurements of Circum-Galactic Gas FlowsFaucher-Giguere, Claude-Andre NANA0
2314292Investigating the Gas within the Planck Galactic Cold ClumpsDirks, Cody LeeNANA0
2314288A New Method to Measure the UV Escape Fraction from GalaxiesChoi, Yumi NANA0
2213924The intergalactic medium in the cosmic webTejos, Nicolas NANA0
2213919MAST Interface to Synthetic Telescopes with yt {MISTY}: Observing Simulations of the Intergalactic MediumPeeples, Molly NANA0
2213917The COS Cold Absorber Puzzle: Understanding the Metallicity and Phase of the Circumgalactic MediumHummels, Cameron NANA0
2213913The Search for Diffuse Intergalactic and Circumgalactic Emission with the Cosmic Origins SpectrographPenton, Steven V.NANA0
2213910Modeling the Origins of Sub-subgiant StarsGeller, Aaron NANA0
2213905Quantifying Bursty Star Formation and Dust Extinction in Dwarf Galaxies at 0.75 < z < 1.5Siana, Brian NANA0
2213903quasar lifetimes and helium reionization from HeII proximity zonesMcQuinn, Matthew NANA0
2213894A Deep Survey of Low-Redshift Absorbers and Their Connections with Galaxies: Probing the Roles of Dwarfs, Satellites, and Large-Scale EnvironmentBurchett, Joseph NeilNANA2
2213893The spectral shape of the ionizing extragalactic background radiation at z ~ 0Wakker, Bart P.NANA0
2213885Comparative Precise Parameters for OB Stars in Three GalaxiesWalborn, Nolan R.NANA0
2213884The Origins of Germanium and the Transition to Neutron-Capture NucleosynthesisRoederer, Ian U.NANA0
2213881The formation of Lyman alpha fluorescent H2 lines in protoplanetary disks surrounding young solar mass starsCalvet, Nuria NANA0
2213880The First Direct Measurement of the 2-3 Rydberg Quasar Continuum for a Statistical SampleSyphers, David NANA0
2213879The s-process contribution to rare, heavy elementsRoederer, Ian U.NANA0
2213878Unearthing a Treasure Trove of Ultraviolet Galaxy SpectraLeitherer, Claus NANA0
2213877Project ALCATRAZ: Archival Lyman-Continuum and Theoretical Reionization Analysis vs. z: Where, When, How & How Much does LyC Escape?Windhorst, Rogier A.NANA0
2113275The Skeleton in the Closet: Testing the Effect of HII Region Self-Enrichment Using Archival STIS DataWerk, Jessica NANA0
2113267Reconstructing Lyman Alpha Radiation in T Tauri StarsSchindhelm, Eric RobertNANA1
2113263Determining Fe I Energy Levels with STIS 230H Near-UV Spectra of Metal-Poor StarsPeterson, Ruth C.NANA0
2113262Cosmic HI: a tracer of the physics regulating galaxy formation over a Hubble timeOppenheimer, Benjamin DarwinNANA0
2113261Unlocking the secrets of absorption line complexes in the intergalactic mediumO'Shea, Brian W.NANA0
2113253Filling in the Gaps in a Study of Gas that Molds the Fermi Bubbles: An Archival Supplement to a Cycle 20 GO ProgramJenkins, Edward B.NANA0
2113246The nucleosynthetic origins and chemical evolution of phosphorus in the early universeFrebel, Anna NANA2
2113245Reading the message in the light: understanding STIS and COS spectra, preparing for the Webb EraFerland, Gary J.NANA0
2113241Using Resolved Stellar Populations To Tune The Pixel-by-pixel SED Fitting TechniqueCohen, Seth H.NANA0
2113239An Archival COS Study of Multi-phase Galactic Outflows and Their Dependence on Host Galaxy PropertiesChisholm, John PNANA3
2113237Rehabilitating Ultraviolet-Based Quasar Black Hole Mass EstimationBrotherton, Michael S.NANA0
2113233The COS revolution of AGN outflow scienceArav, Nahum NANA0
First Cycle for the Program Proposal    Number(s)    Title PI Planned External Orbits* Planned Parallel Orbits* Number of Papers Associated with Program