EEEEEEEEEEE   U         U    V           V   EEEEEEEEEEE
          E             U         U     V         V    E
          E             U         U      V       V     E
          EEEEEEE       U         U       V     V      EEEEEEE
          E              U       U         V   V       E
          E               U     U           V V        E
          EEEEEEEEEEE      UUUUU             V         EEEEEEEEEEE
---------------------------------------------------------------------------
              ELECTRONIC NEWSLETTER OF THE EUVE OBSERVATORY
---------------------------------------------------------------------------
Vol. 9, No. 2               18 July 2000                  ISSN 1065-3597
---------------------------------------------------------------------------
          (C) 2000, Regents of the University of California
---------------------------------------------------------------------------

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.

--------------------------------------------------------------------------

  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