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ELECTRONIC NEWSLETTER OF THE EUVE OBSERVATORY
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Vol. 9, No. 2 18 July 2000 ISSN 1065-3597
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(C) 2000, Regents of the University of California
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Notes from the Editor
=====================
by Jennifer Cullison, EUVE Project Specialist
Welcome to the electronic newsletter for NASA's Extreme Ultraviolet
Explorer (EUVE) satellite, compiled and published quarterly by the
Center for EUV Astrophysics (CEA) at the University of California,
Berkeley (UCB).
The contents of this issue of the EUVE electronic newsletter are as follows:
1. EUVE Satellite Mission Operations News
1.1 Operations Highlights
1.2 Observation Log
2. EUVE Science News
2.1 Science Highlights
2.2 Recent Director's Discretionay Time Observations
2.3 Recent EUVE Calibration Observations
2.4 EUVE Science Session at June 2000 AAS
2.5 Recent EUVE Data Releases
2.6 EUVE Publications: January - June 2000
To comment on or make suggestions for the EUVE electronic newsletter,
please send e-mail to ceanews@cea.berkeley.edu (Internet).
1 EUVE Satellite Mission Operations News
========================================
1.1 Operations Highlights
-------------------------
EUVE operations highlights for the first two quarters of 2000 are:
July 7, 2000
EUVE Celebrated 8-Year Launch Anniversary
EUVE Well-Represented at June AAS
EUVE Team Received Award from NASA Administrator
FOT Continued Post-Battery-Failure Clean-Up Work
June 13, 2000
EUVE Battery Failure Prompts Safe-Hold Mode Entries
May 18, 2000
EUVE Coordinated TOOs of New X-Ray Transient
UCB Submits EUVE Proposal to Senior Review
Monthly EUVE Battery Reconditioning
April 12, 2000
Contributed EUVE Oral Session Planned for AAS
UCB Celebrates 3-Year Outsourcing Anniversary
EUVE FOT Conducts Monthly Battery Reconditioning
March 15, 2000
Combination of Operator Errors Results in EUVE SHM
EUVE Conducts Innovative TOO Collaboration with AAVSO
UCB Released New Version of EUVE Data Analysis Package
Extra EUVE T1 Decommissioned To Save NASA $$
January 15, 2000
Battery dVs Trigger EUVE Entry into Safe-Hold Mode
FOT Adjusts EUVE Frequency
EUVE Y2K Status
Details (including general notes and Y2K status) are available at:
http://www.cea.berkeley.edu/~pubinfo/html/EUVE_operations_high_opshigh.html
1.2 Observation Log
-------------------
EUVE observed 21 different targets for regular observations over the course of
the first and second quarters of 2000 including sigma Gem, By Cam, UZ For,
AN UMa, OY Car, J0659+142, AD Leo, HZ 43, EUVE J0932+26.9, NGC 4051, Virgo,
XTE J1118+480, 44 Boo, 1H 1651+398, H1226+023, RE 1034+39, Ex Hya, TZ CrB,
EUVE J2115+58.6, ACO 2149, and EUVE J006+29.0.
Additional time was arranged for calibration of the star trackers.
Details and previous observation information are available at:
http://www.cea.berkeley.edu/~science/data/dynamic/exposures.html or
http://www.cea.berkeley.edu/~science/html/EUVE_call99_euvelog.html
2. EUVE Science News
====================
2.1 Science Highlights
----------------------
EUVE science highlights for the third quarter of 1999 are:
June 13, 2000
Diffuse EUV Excess in Virgo
Initial Findings from EUVE Observation of OY Car
EUVE Reveals Variable White Dwarf GD 394
EUVE Detects EUV Flux from LMXB AC211
EUVE Leads Multi-Wavelength Coordinated Observing Campaign
April 12, 2000
EUVE Monitors Flux Variability in Coordinated Observation of NGC 4051
EUVE TOO Catches X-ray Transient XTE J1118+480
March 15, 2000
EUVE TOO Helps Reveal Stages of Optical, X-ray, and EUV Emission Observed in SS Cyg Outburst
EUVE Helps Reveal Nature of Early B Star Companion in Lambda Sco
January 20, 2000
Understanding EUV/X-ray Emission from Comet P/Encke 1997
EUV Mapping of the LISM: the Local Chimney Revealed?
The Source of Ionization in the LISM Cloud/Fluff??
Details and previous months' highlights are available at:
http://www.cea.berkeley.edu/~science/html/Resources_high.html
2.2 Recent Director's Discretionary Time Observations
------------------------------------------------------
estimated
exposure awarded EUVE
Obs. Completed PI Target(s) ksec ksec cycle
-------------- -- --------- ---- ---- -----
20000429 Sirk H1226+023 10 10 8
20000428 Sirk IH1651+398 10 10 8
20000419 Mauche XTE J118+480 8 8 8
20000226 Mattei OY Car 100 100 8
EUVE DDTs do not have proprietary rights. Interested parties should be able
to download this data from
http://www.cea.berkeley.edu/~science/html/Archive_pointed_order.html
(see "Recent EUVE Data Releases" below).
2.3 Recent EUVE Calibration Observations
----------------------------------------
est. exposure
Obs. Completed Target ksec
------------- ------ ----
20000314 HZ43 ~3
Detailed results of all of recent calibration studies are posted on the web as
they become available. See
http://www.cea.berkeley.edu/~science/html/Resources_calibration99.html.
Calibration data has no proprietary rights. Interested parties should be able
to download this data from permanent links at
http://www.cea.berkeley.edu/~science/html/Archive_pointed_order.html
(see "Recent EUVE Data Releases" below).
2.4 EUVE Science Session at June 2000 AAS
------------------------------------------
EUVE was well represented during the 4-8 June meeting of the American
Astronomical Society (AAS) in Rochester, NY. Eight astronomers presented
oral talks on a variety of scientific topics at a special EUVE science
session, which was well-attended by 40-50 researchers. A number of other
session talks and poster presentations highlighted EUVE-related results.
EUVE Project support personnel attended the meeting to interface directly
with the user community in an effort to improve overall service to EUVE
customers.
See the bibliography below for all EUVE-related papers given at the June AAS.
2.5 Recent EUVE Data Releases
-----------------------------
Following is a list of EUVE data sets released over the first and second
quarters of 2000.
For releases prior to this see
http://www.cea.berkeley.edu/~science/html/Archive_pointed_newrelease.html
You may search for and download data sets from
http://www.cea.berkeley.edu/~science/html/Archive_pointed_order.html
Object Name Obs Date RA (J2000) Dec (J2000) ks Observer
----------- -------- ---------- ----------- --- --------
June
-- not yet available --
May
RX J0152-23 Jul 15 1999 7:58AM 01 52 13.68 -23 30 46.80 30 K. LEIGHLY
RX J0323-49 Jul 17 1999 12:48AM 03 24 13.44 -49 37 22.80 32 K. LEIGHLY
ACO 1761 May 27 1999 2:08PM 13 33 35.04 +57 43 44.40 46 C. S. BOWYER
EUVE J1636 528 Jun 27 1999 10:47AM 16 36 11.50 +52 54 19.00 216 M. BURLEIGH
V772 HER Jul 7 1999 2:31PM 18 05 49.68 +21 26 45.24 9 A. K. DUPREE
HER X-1 Jul 11 1999 2:27PM 16 57 49.70 +35 20 33.00 95 B. BOROSON
HER X-1 Jul 28 1999 4:49AM 16 58 16.56 +35 31 55.21 131 D. A. LEAHY
2EUVE J0138 253 Aug 24 1999 12:25AM 01 38 52.80 +25 23 25.00 252 J. DUPUIS
April
VIRGO ARC May 18 1999 3:38AM 12 30 34.32 +12 28 40.80 89 C. S. BOWYER
CASG 1043 May 25 1999 4:41PM 12 42 25.68 +33 25 01.20 43 C. S. BOWYER
ACO 1608 Jun 7 1999 1:44AM 12 45 37.00 +33 23 18.00 44 C. S. BOWYER
3C 279 May 17 1999 4:38PM 12 56 22.32 -05 39 28.80 9 C. S. BOWYER
ACO 1790 May 21 1999 3:04PM 13 46 58.08 +54 07 37.20 47 C. S. BOWYER
March
SS CYG Jun 7 1999 8:10AM 21 42 42.96 +43 35 08.52 251 C. W. MAUCHE
MARS Apr 4 1999 5:59AM 14 34 21.79 -13 05 56.02 256 G. R. GLADSTONE
February
EK UMA Dec 23 1998 10:04PM 10 51 35.28 +54 04 31.07 150 S. B. HOWELL
ESO 242-G8 Jun 3 1999 10:13PM 00 25 01.20 -45 29 55.00 31 K. LEIGHLY
CBS 126 May 4 1999 12:49PM 10 13 03.20 +35 51 24.00 28 K. LEIGHLY
ACO 0950 Mar 22 1999 6:54PM 10 14 39.00 +49 49 06.00 46 C. S. BOWYER
ACO 1795 May 29 1999 11:49AM 13 48 52.80 +26 35 31.92 130 C. S. BOWYER
RX J14226 5801 May 31 1999 6:58PM 14 22 39.00 +58 01 55.00 55 C. S. BOWYER
ACO 2214 Jun 6 1999 2:09AM 16 37 45.00 +37 54 06.01 46 C. S. BOWYER
NISM DOWNWIND Dec 10 1998 3:59PM 02 58 41.28 +12 20 16.80 12 B. C. FLYNN
January
V834 CEN Feb 8 1999 5:49PM 14 09 07.55 -45 17 17.80 153 C. W. MAUCHE
M87 Feb 18 1999 1:50AM 12 30 49.50 +12 23 24.00 73 R. LIEU
3C 279 Mar 11 1999 12:17PM 12 56 11.00 -05 47 22.00 93 C. S. BOWYER
COMA SUBCLUSTER Mar 15 1999 9:39PM 12 57 25.00 +27 29 48.00 114 C. S. BOWYER
ACO 2149 Mar 7 1999 1:49PM 16 01 48.00 +53 57 00.00 42 C. S. BOWYER
ACO 2199 Feb 27 1999 5:03PM 16 22 05.52 +40 19 33.60 11 R. LIEU
EUVE J1636 528 Feb 28 1999 2:29AM 16 36 11.50 +52 54 19.00 216 M. BURLEIGH
MOON Jan 24 1999 8:16AM 01 47 14.16 +06 29 20.85 7 B. C. FLYNN
2.6 EUVE Publications: January - June 2000
------------------------------------------
The full EUVE bibliography (1978 to present) is available at:
http://www.cea.berkeley.edu/~science/html/Resources_pubs_euvebib.html
Following is citation and abstract information for all known publications
released over the first and second quarters (January through June) of 2000.
Abstracts of these papers are available at the NASA Astrophysics Data System:
http://adswww.harvard.edu/abstract_service.html.
Cataclysmic Variables
EUVE Observations of OY Carinae in Superoutburst, C.W. Mauche and J.C.
Raymond, ApJ, accepted April 2000.
Simultaneous Extreme Ultraviolet Explorer and Rossi X-Ray
Timing Explorer Observations of AM Herculis, D.J. Christian,
AJ, 119, p. 1930, April 2000.
Extreme Ultraviolet Explorer and Optical Observations of the
Magnetic Cataclysmic Variables RX J1015.5+0904 and V405
Auriga (RX J0558+5353), P. Szkody, J. Armstrong, and R. Fried,
PASP Supplement, 112, 228, February 2000.
Extragalactic
Extreme Ultraviolet Emission for Abell 4059, T. Berghoefer, S. Bowyer,
and E. Korpela, ApJ, accepted June 2000.
Extreme Ultraviolet Explorer Observations of Clusters of
Galaxies: Virgo and M87, T.W. Berghöfer, S. Bowyer, and E.
Korpela, ApJ, 535, p. 615, June 2000.
Simultaneous EUV and X-ray variability of NGC 4051, P. Uttley, I.M.
McHardy, I.E. Papadakis, I. Cagnoni, and A. Fruscione, MNRAS,
312, p. 880, March 2000.
Interstellar Medium
The Three-dimensional Structure of the Warm Local
Interstellar Medium. II. The Colorado Model of the Local
Interstellar Cloud, S. Redfield and J.L. Linsky, ApJ, 534,
p. 825, May 2000.
Early Type
What is the Nature of the Companion of lambda Scorpii?, T. Berghoefer,
S. Vennes, and J. Dupuis, ApJ, accepted March 2000.
Neutron Stars and LMXBs
Hercules X-1: Empirical Models of UV Emission Lines, B.
Boroson, T. Kallman, M. Still, S.D. Vrtilek, J.C. Jaymond,
and H. Quantrell, ApJ, 529, p. 414, January 2000.
Solar System and EUV Solar Astronomy
EUVE Search for X-rays from Comets Encke, Mueller (C/1993 A1),
Borrelly, and Postperihelion Hale-Bopp, V.A. Krasnopolsky,
M.J. Mumma, and M.J. Abbott, Icarus, 146, p. 152, July 2000.
196th AAS Meeting, June 2000 (in BAAS 32, no. 2)
Active Stellar Coronae: Lots of Little Flares?, J.J. Drake,
V.L. Kashyap, M. Audard and M. Guedel, session 54,
presentation 7.
Bayesian Analysis of the High-Energy Tail of Sigma Gem, E.
Sourlas, Y. Yu, D.A. Van Dyk, V.L. Kashyap, and J.J. Drake,
session 54, presentation 2.
A Configurable Internet Telemetry Server / Remote Client
System, W.T. Boyd, A. Hopkins, M.J. Abbott, and F.R. Girouard,
session 32, presentation 3.
Constraints on Models of Cometary x-ray Emission with EUV and
Soft X-ray Spectrophotometry, C.M. Lisse, D.J. Christian, and
K. Dennerl, session 13, presentation 8.
The Coronal Structure of II Pegasi from Chandra/HETGS and EUVE
Spectra, D.P. Huenemoerder, N.s. Schulz, C.R. Canizares, and
D.L. Buzasi, session 37, presentation 6.
The EUVE and the Ionization in the Local Interstellar Cloud,
R. Lallement, E. Quemerais, J.L. Bertaux, B. Wolff, and D.
Koester, session 13, presentation 3.
The EUVE Legacy Science Program, S.B. Howell, J.L. Cullison,
and R.F. Malina, session 13, presentation 9.
The EUVE Mission at UCB: Squeezing More From Less, B.A.
Stroozas, J.L. Cullison, K.E. McDonald, R. Nevitt, and R.F.
Malina, session 32, preesentation 2.
EUVE Observations of Hercules X-1, D.A. Leahy and H.L.
Marshall, session 13, presentation 7.
The EUVE Permanent Archive at HEASARC and MAST, D.J.
Christian, T. McGlynn, S. Drake, N.E. White, P. Newman, M.
Postman, R.J. Hanisch, M. Donahue, C. Imhoff, T. Kimball, K.
Levay, P. Padovani, M. smith, R.W. Thompson, R.F. Malina, and
B. Stroozas, session 13, presentation 2.
EUVE TOO Helps Reveal Stages of Optical, X-ray, and EUV
Emission Observed in SS Cygni Outburst, J.A. Mattai, C.W.
Mauche, and P.J. Wheatly, session 13, presentation 6.
Flare Distributions and Coronal Heating on FK Aqr, V.L.
Kashyap, J.J. Drake, M. Audard, and M. Guedel, session 13,
presentation 5.
Multi-Mission Collaboration: Update on the EUV Sky, R.F.
Malina, S.B. Howell, J.L. Cullison, B.A. Stroozas, session
13, presentation 1.
Preliminary Results of the EUVE Slew Survey: Aug 1993 - Feb
2000, K.E. McDonald, D. J. Christian, and R.F. Malina,
session 53, presentation 9.
Probing the Multi-Wavelength Nature of Stellar Flares, R.A.
Osten, A. Brown, T.R. Ayres, and J.L. Linsky, session 13,
presentation 4.
Rising from the Dead: the Revival of the EUVE E/PO, J.L.
Cullison, N. Craig, B.A. Stroozas, and R.F. Malina, session
24, presentation 5.
195th AAS Meeting, January 2000 (in BAAS 31, no. 5)
Automated "Batch" Processing for EUVE Science Data, J. F.
Thorsness, W. Boyd, B.A. Stroozas, and R.F. Malina, session
82, presentation 7.
"Big Bang" for NASA's Buck: Nearly Three Years of EUVE
Mission Operations at UCB, B.A. Stroozas, R. Nevitt, K.E.
McDonald, J. Cullison, and R.F. Malina, session 82,
presentation 5.
Capella: Coronal Variability from EUVE, A.K. Dupree, N.S.
Bridkhouse, and J. Sanz-Forcada, session 76, presentation
3.
Chandra Sees Its First Stellar Flares: Results from
Coordinated Chandra, EUVE, HST STIS, and VLA Observations of
HR 1099, R.A. Osten, T.R. Ayres, A. Brown, D. Huenemoerdr,
J.J. Drake, J.L. Linsky, and N. Brickhouse, session 112,
presentation 14.
A Direct Measurement of Hydrogen Column Density towards
Sirius B by EUVE Photometry at 60 nm, J. Vallerga and J.
Dupuis, session 72, presentation 3.
The EUVE Electronic Proposal Review (EPR) System, J.L.
Cullison, W. Boyd, B.A. Stroozas, and R.F. Malina, session 82,
presentation 7.
EUVE and IR observations of the Polars HU Aqr and AR UMa,
S.B. Howell and D. Ciardi, session 40, presentation 9.
EUVE Spectroscopy and Variability Analysis of beta Canis
Majoris in the 300-700 \AA Band, N.A. Miller, D.H. Cohen,
J.P. Cassinelli, and G.J. Peters, session 50, presentation 11.
FUSE Observations of the Hot DA White Dwarf GD 394, P. Chayer,
J.W. Kruk, P. Barrett, and FUSE Science Team, session 6,
presentation 19.
Probing the Local ISM with Hot White Dwarfs, J.B. Holberg,
F.C. Bruhweiler, M.A. Barstow, and P.D. Dobbie, session 72,
presentation 1.
Re-Observing Several EUV Excess Clusters with In Situ
Background Measurements by Pointings at Small Offset, J.P.D.
Mittaz, R. Lieu, and M. Bonamente, session 10, presentation 8
(also oral: session 64, presentation 5).
A Search for Helium in Ultra-Massive White Dwarfs Atmospheres,
J. Dupuis, S. Vennes, and P. Chayer, session 36, presentation
1.
Other Conferences
The EUV Emission-Line Spectrum of OY Carinae in Superoutburst:
Scattering in the Wind, C.W. Mauche and J.C. Raymond, RMxAC,
session9, presentation 232, May 2000.
Active Late-Type Stellar Coronae: Hints for Flare Heating?,
M. Audard, M. Gudel, J.J. Drake, V. Kashyap, and E.F. Guinan,
IAUS, session 195, presentation 377, May 2000.
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The EUVE Electronic Newsletter is issued by the Center for Extreme
Ultraviolet Astrophysics, University of California, Berkeley, CA
94720, USA. The opinions expressed are those of the authors. EUVE
Principal Investigator and Newsletter Publisher: Dr. Roger F.
Malina. EUVE Newsletter Editor: Jennifer Cullison. Funded by NASA/UCB
Cooperative Agreement NCC5-138. Send newsletter correspondence to
ceanews@cea.berkeley.edu.
The EUVE project is managed for NASA by UCB: Dr. Roger F. Malina,
EUVE Observatory Director; Drs. Brian Flynn and Jean Dupuis, EUVE
Observatory Deputy Directors; Mr. Brett Stroozas, EUVE Project
Manager; Mr. Rob Nevitt, EUVE Operations Manager. NASA HQ: Dr.
Guenter Riegler, Program Manager. EUVE Science Advisory Board: Dr.
Steve Howell (Chair).
END-----------EUVE------------ELECTRONIC---------------NEWS-------------END