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The Transient EUV Sky as Observed by Alexis

Published online by Cambridge University Press:  12 April 2016

Diane Roussel-Dupré  and
Jeffery J. Bloch
Diane Roussel-Dupré
Affiliation:
Astrophysics and Radiation Measurements Group, Los Alamos National Laboratory, P.O. Box 1663, MSD436, Los Alamos, NM 87545, USA
Jeffery J. Bloch
Affiliation:
Astrophysics and Radiation Measurements Group, Los Alamos National Laboratory, P.O. Box 1663, MSD436, Los Alamos, NM 87545, USA

Extract

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Los Alamos National Laboratory’s ALEXIS satellite, containing six wide field of view EUV telescopes was launched 1993 April 25. ALEXIS is a sky monitor/survey experiment, and with each 50 s rotation, the satellite’s six telescopes (three energy bands 130, 178 and 186 Å) scan nearly half of the sky. Due to the damage sustained at launch by the satellite, the ALEXIS project team has had to spend over a year devising new methods to determine spacecraft attitude knowledge, essential for putting photons back on the sky correctly. These efforts have been successful. A recent review of the ALEXIS point source effort can be found in the Proceedings of IAU Colloquium 152, 1995. This paper reviews the transient systems that have been observed by ALEXIS which fall into two types: cataclysmic variables and unknown, short duration transients.

Type
Space Observations
Information
International Astronomical Union Colloquium , Volume 158: Cataclysmic Variables and Related Objects , 1996 , pp. 257 - 258
Copyright
Copyright © Kluwer 1996