Latest HLSP Releases & Updates

New:

• To investigate the use of Convolutional Neural Networks (CNNs) for distinguishing between simulated merging and non-merging galaxies at z=2, the DEEPMERGE team created two versions of mock data mimicking Hubble Space Telescope and James Webb Space Telescope observations: pristine (simulated galaxy images with PSF blurring) and noisy (simulated galaxy images with PSF and observational noise). The accuracy of the CNN model on the test set is 79% (76%) on the pristine (noisy) mock data. The CNN outperforms a Random Forest classifier (Snyder et al. 2019), which was shown to be superior to conventional one- or two-dimensional statistical methods (Concentration, Asymmetry, the Gini, M20 statistics, etc.), which are commonly used when classifying merging galaxies.  View DEEPMERGE collection page >
• The GRS-WFC3 collection provides high precision velocity fields of Jupiter's Great Red Spot (GRS) that have been created by correlating sequences of WFC3/UVIS images spanning typical sequence durations of 10 hours. The analysis, results, and high-level science products are described in a paper by Wong et al. (2021), entitled "Evolution of the Horizontal Winds in Jupiter's Great Red Spot from One Jovian Year of HST/WFC3 Maps." Velocities were measured using the Advection Corrected Correlation Image Velocimetry (ACCIV) software, which was described in Asay-Davis et al. (2009) and is available at GitHub.  View GRS-WFC3 collection page >
• Strong gravitational lensing models for 37 galaxy clusters from the Sloan Digital Sky Survey Giant Arcs Survey (SGAS) are made available as an HLSP, observed by HST GO13003 Cycle 20 large program. The lens models are constructed based on multi-band HST WFC3 imaging and supplemented  with ground-based imaging and spectroscopy in order to detect and spectroscopically confirm new multiply imaged lensed background sources behind the clusters. In the paper that accompanies this data release, Sharon et al. (2020), the team report the list of lensing constraints, and spectroscopic or photometric redshifts of sources in these fields, including cluster galaxies and background sources. The strong lensing mass models are constructed based on all available lensing evidence.  The HLSP include lens model outputs (kappa, gamma) for the best-optimized model and a range of maps drawn from sets in the MCMC that sample the parameter space, from which one can derive lens model properties such as cluster masses, magnification, deflection, and their uncertainties.  View SGAS collection page >
• SMARTS (Stellar Magnetism, Activity, and Rotation with Time Series, Claytor et al. 2022) is a training set of synthetic light curves and binned wavelet transforms designed to mimic the full-frame image light curves of the TESS continuous viewing zones. The light curves were generated using the physically realistic spot evolution models in butterpy and include rotation, varying activity levels, magnetic cycles, spot emergence and decay, and latitudinal differential rotation. They are combined with real TESS galaxy light curves and stitched sector-to-sector to emulate TESS's systematics and noise.  View SMARTS collection page >

Updated:

• CDIPS (Bouma et al.), calibrated light curves of targets known to be cluster/moving target members from TESS full frame images. This release consists of 559,641 light curves from Sectors 14-26 and an updated catalog.  View CDIPS collection page >
• Mega-MUSCLES targets have been added to the MUSCLES HLSP collection! Panchromatic SEDs spanning X-ray, EUV, UV, optical, and IR. Mega-MUSCLES adds 12 M dwarfs, extending coverage down to M8 spectral class.  View Mega-MUSCLES collection page >
• QLP (Huang et al.) calibrated TESS light curves have added data up through Sector 39, which are now available at MAST. These updates have included more than seven-million new light curves. Sector 39 also completes Year 3 of data for the QLP collection.  View QLP collection page >
• REFERENCE-ATLASES, catalogs and spectral atlases used as input for pysynphot, updated with new throughput files for all COS FUV and NUV cenwaves.  View REFERENCE-ATLASES collection page >
• TASOC DR5, Sectors 1-3, now available. 2.5 million TESS light curves, now systematics-corrected for the first time in DR5. Sources up to TESS magnitude 15, cadences of 30 min and 2 min. Optimized for (but not limited to) asteroseismology.  View TASOC collection page >
• TICA, calibrated “quick-look” TESS full frame images have been updated up through Sector 51, Orbit 1, and are now available at MAST.  View TICA collection page >