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| GGGGGGG HH HH RRRRR SSS |
STScI | GG HH HH RR R SS | STAN - GHRS
Analysis | GG GGG HHHHHH RRRRR SS | Number 12
News | GG GG HH HH RR R SS | April 1996
| GGGGGGG HH HH RR R SSS |
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CONTENTS:
- GHRS NEWS
+ Update on calhrs Bug
+ Calibrations in Cycle 6
+ Early Implementation of Cycle 6 Observations
- Scientific Programmer Positions Available at STScI
- RECENT PREPRINTS
- APPENDIX: GHRS CONTACTS
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Update on calhrs Bug
--------------------
Last month we reported on a problem in calhrs that causes it to crash when it
encounters fill data. Fill data are generated to replace missing data that
result, for example, when a carrousel reset causes a subsequent observation
to be cut short. A fix to this problem has been written and is now being
tested. We expect to provide the fix next month.
Calibrations in Cycle 6
-----------------------
A Calibration Plan for the GHRS in Cycle 6 has been written. Most of the
program consists of the usual monitors to verify nominal performance with
respect to sensitivity, wavelengths, detector operation, etc.
The one unusual item this year is a special close-out measurement of the
sensitivity of the GHRS without the COSTAR mirrors. There has been a
significant decline in GHRS sensitivity below Lyman-alpha especially, and
these observations will determine the extent to which that is caused by
the COSTAR mirrors.
Early Implementation of Cycle 6 Observations
--------------------------------------------
We are continuing to work to get as much of the Cycle 6 GHRS program as
possible completed before the 1997 Servicing Mission. We appreciate your
assistance in meeting this goal, as we may need to contact you to verify
details of your observations.
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Scientific Programmer Positions Available at STScI
--------------------------------------------------
The Space Telescope Science Institute has two openings for the position
of Scientific Programmer in the Science Software Branch. The
programmers are responsible for design, coding, testing, and
maintenance of the software used by the international astronomical
community for the calibration and analysis of data from the Hubble
Space Telescope. Programmers within the group work closely with
astronomers on the ST ScI staff in developing software requirements and
algorithms for instrument-specific tasks (including data analysis
pipelines for new HST instruments). They also participate in larger
development projects, often in collaboration with programming staff at
other astronomical institutions, to enhance the system-level
environment.
Proficiency in C and Fortran and a working knowledge of the Unix and
VMS operating systems are required. Experience with object-oriented
languages such as C++ is desirable, as is experience with the IRAF data
analysis system. A background in research data analysis and algorithm
development for image or spectral data is required; an astronomical
background is highly desirable. Excellent verbal and written
communications skills are necessary.
A Bachelor's Degree in Astronomy, Physics, Computer Science, or related
field is required; an advanced degree is preferred. The successful
candidate will have a minimum of two years experience in scientific
software development. Substitution of additional relevant education or
experience for stated qualifications may be considered. Females and
minorities are encouraged to apply. These positions will remain open
until suitable candidates have been found. Send a curriculum vitae,
letter of application, and samples of C or Fortran code to:
Human Resources Manager
Space Telescope Science Institute
3700 San Martin Drive
Baltimore, MD 21218
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RECENT PREPRINTS
----------------
We draw your attention to these papers, based on GHRS data, that will appear in
the next few months. This list includes all preprints received by the STScI
Library not yet published in the journals. Please remember to include our
Library in your preprint distribution list.
BAADE, R.; KIRSCH, T.; REIMERS, D.; TOUSSAINT, F.; BENNETT,
P.; BROWN, A.; HARPER, G. "The wind outflow of zeta Aur: a
model revision using HST spectra" ApJ accepted
BOHM-VITENSE, E.; EVANS, N.R.; CARPENTER, K.;
BECK-WINCHATZ, B.; ROBINSON, R. "The mass of the classical
Cepheid S Muscae" ApJ
DEMPSEY, R.C.; NEFF, J.E.; LINSKY, J.L.; BROWN, A.
"Goddard High Resolution Spectrograph observations of
variability in the RS CVn system V711 Tau (HR 1099)" Cool
Stars, Stellar Systems and the Sun 9 - in Linsky preprint
LECKRONE, D.S.; JOHANSSON, S.; WAHLGREN, G.M.; PROFFITT,
C.R.; BRAGE, T. "Stellar chemical abundances with the
GHRS" Physica Scr. accepted
LINSKY, J.L.; WOOD, B.E. "GHRS studies of stellar
chromospheres, transition regions, and coronae" Cool
Stars, Stellar Systems and the Sun 9 - in Linsky preprint
SAVAGE, B.D.; SEMBACH, K.R. "Abundances in the galactic
halo gas" Cosmic Abundances
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APPENDIX: GHRS contacts
-----------------------
Any questions about the scheduling of your observations should be addressed to
your Program Coordinator. Post-Observation questions can be addressed to your
Contact Scientist.
Analysis, STSDAS or any other questions can also be addressed to help@stsci.edu.
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The Space Telescope Science Institute is operated by the Association of
Universities for Research in Astronomy, Inc., under NASA contract NAS5-26555.
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