Astronomy and Astrophysics – Astronomy
Scientific paper
Jun 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985esasp.236..161o&link_type=abstract
In ESA Recent Results on Cataclysmic Variables p 161-165 (SEE N86-20287 10-93)
Astronomy and Astrophysics
Astronomy
2
Binary Stars, Spaceborne Astronomy, Ultraviolet Astronomy, White Dwarf Stars, X Ray Astronomy, Exosat Satellite, Iue, Light Curve, Stellar Mass Accretion, Stellar Models, Stellar Spectrophotometry
Scientific paper
Quasi-simultaneous EXOSAT, low resolution spectrophotometric optical, and IUE observations of the AM Her object E2003+225 made in October 1983, and simultaneous high resolution optical and phase-resolved IUE observations made in July 1984 are presented. The soft X-ray light curve shows two maxima per orbital period and two eclipses. The EXOSAT 500 1/mm grating observation limits the blackbody temperature to 18 to 29 eV. The blackbody luminosity exceeds the bremsstrahlung luminosity by a least a factor of 2.3, in contradiction to standard accretion models. In July 1984 systemic velocity = -30 Km/sec for all line components (previous observations) show 300 to 500 Km/sec). Optical minimum and soft X-ray eclipse occur at dia = 0.3, previous observations showed optical minimum at 0.4.
Bonnet-Bidaud Jean-Marc
Charles Phil A.
Corbet Robin
Henry Patrick
Hill Gary
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