Supersoft X-Ray Sources: Proceedings of the International Workshop Held in Garching, Germany, 28 February–1 March 1996

R. Di Stefano, L. A. Nelson (auth.), Jochen Greiner (eds.)3540613900, 9783540613909

Observations with X-ray satellite ROSAT over the past 5 years have established supersoft X-ray sources as a new class of objects in our Galaxy and beyond. Optical follow-up observations have revealed the binary nature of several of them. Recent population synthesis calculations have shown that the number of such binaries is expected to be considerably larger than those of the common low- and high-mass X-ray binaries. This book provides the first comprehensive overview of the many recent observational discoveries and theoretical investigations. It describes relations between supersoft sources and other areas in astrophysics. This volume also comprises a complete catalog of presently known supersoft sources including a comprehensive bibliography of observational results.

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Table of contents :
On the evolution, numbers and characteristics of close-binary supersoft sources….Pages 3-14
White dwarfs with H/He burning as supersoft X-ray sources….Pages 15-24
Hot high-gravity NLTE model atmospheres applied to supersoft sources….Pages 25-32
Luminous supersoft X-ray sources in globular clusters….Pages 33-36
The integrated X-ray spectrum of galactic populations of luminous supersoft X-ray sources….Pages 37-40
Neutron stars can do it too if they want to….Pages 41-44
SSSs as progenitors of the BHCs….Pages 45-50
Simulation of the visual light curve of CAL 87….Pages 53-64
Accretion disks in supersoft X-ray sources….Pages 65-72
Supersoft X-ray sources in M31….Pages 75-82
X-ray and optical observations of RX J0925.7-4758: Constraints on the binary structure….Pages 83-90
The X-ray energy spectrum of RX Jo925.7-4758 with ASCA….Pages 91-98
Optical photometry of RX J0019.8+2156 over the last three years….Pages 99-106
Phase resolved UV spectroscopy of RX J0019.8+2156….Pages 107-114
Optical spectroscopy of RX J0439.8-6809 and 1E 0035.4-7230….Pages 115-122
Photometric observations of supersoft sources in the LMC….Pages 123-126
Optical light curve and binary period of the supersoft X-ray transient RX J0513.9-6951….Pages 127-130
Non-LTE model atmosphere analysis of the supersoft X-ray source RX J0122.9-7521….Pages 131-138
Implications of light metals (Li−Ca) on NLTE model atmospheres for hot stars….Pages 139-142
The long-term X-ray lightcurve of RX J0527.8-6954….Pages 145-152
Interpretation of the long-term optical variations of RX J0019.8+2156….Pages 153-158
ROAST monitoring of the LMC supersoft transient source RX J0513.9-6951….Pages 159-164
Optical variability of the LMC supersoft source RX J0513.9-6951….Pages 165-172
Optical and X-ray variability of supersoft X-ray sources….Pages 173-180
Type Ia supernovae and supersoft X-ray sources….Pages 183-191
Luminous supersoft X-ray sources as progenitors of type Ia supernovae….Pages 193-204
A new model for progenitors of type Ia supernovae and its relation to supersoft X-ray sources….Pages 205-213
Transient and recurrent supersoft sources as progenitors of type Ia supernovae and of accretion induced collapse….Pages 215-222
ROSAT observations of symbiotic binaries and related objects….Pages 225-249
X-ray properties of symbiotic stars: I. The supersoft symbiotic novae RR tel and SMC3 (=RX J0048.4-7332)….Pages 251-258
Multiwavelength observations of the symbiotic star AG dra during 1979–1995….Pages 259-266
UV and X-ray monitoring of AG draconis during the 1994/1995 outbursts….Pages 267-278
A candidate isolated old neutron star….Pages 279-284
A systematic search for supersoft X-ray sources in the ROSAT all-sky survey….Pages 285-288
A search for optical counterparts to supersoft X-ray sources in the ROSAT pointed database….Pages 289-296
Catalog of luminous supersoft X-ray sources….Pages 299-337