White Dwarfs: Proceedings of the 9th European Workshop on White Dwarfs Held at Kiel, Germany, 29 August – 1 September 1994

V. Weidemann (auth.), Detlev Koester, Klaus Werner (eds.)3540591575, 9783540591573

This book is based on the Proceedings of the 9th European Workshop on White Dwarfs, the most recent in a series of meetings which have become the most important events in this field. Many of the contributions, however, have been expanded considerably by the authors to include introductory material. This makes this volume a useful, up-to-date introduction into the present status of observations and theory of white dwarf stars.

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Table of contents :
Thirty years of white dwarf research in retrospect….Pages 1-10
The mass distribution and luminosity function of hot DA white dwarfs….Pages 11-18
The stellar formation rate and the white dwarf luminosity function….Pages 19-23
On the luminosity function of white dwarfs in wide binaries….Pages 24-30
A new determination of the luminosity function of hot white dwarfs….Pages 31-35
The luminosity function of dim white dwarfs….Pages 36-40
Theoretical white dwarf luminosity functions: DA models….Pages 41-45
Cool White Dwarfs in a southern proper motions survey….Pages 46-46
The born again AGB phenomenon….Pages 47-57
What is wrong with stellar modeling….Pages 58-67
Transformation of AGB stars into white dwarfs….Pages 68-72
The role of G in the cooling of white dwarfs….Pages 73-77
Calibrating white dwarf cosmochronology….Pages 78-82
Thermodynamic quantities for evolutionary and pulsational calculations….Pages 83-87
Numerical simulations of convection and overshoot in the envelope of DA white dwarfs….Pages 88-92
The formation of massive white dwarfs and the progenitor mass of Sirius B….Pages 93-94
HST observations of white dwarf cooling sequences in open clusters….Pages 95-95
Effects of updated neutrino rates in evolutionary white dwarf models….Pages 96-96
Non-LTE line blanketed model atmospheres of hot, metal-rich white dwarfs….Pages 97-107
New He I line profiles for synthetic spectra of DB white dwarfs….Pages 108-112
Line broadening in hot stellar atmospheres….Pages 113-117
Diffusion in PG 1159 stars….Pages 118-122
Pure hydrogen in the spectrum of GD229….Pages 123-127
Spectroscopic effects of T-inhomogeneities in the atmospheres of DA white dwarfs….Pages 128-128
The π line polarization in magnetic white dwarfs….Pages 129-129
Compton scattering in stellar atmospheres at T eff below 100 000 K….Pages 130-130
Hydrogen absorption in high field magnetic white dwarfs….Pages 131-131
LTE for the analysis of white dwarfs?….Pages 132-132
Spherically symmetric and plane parallel NLTE model atmospheres for hot high gravity stars….Pages 133-133
The influence of the bound-free opacity on the radiation from magnetic DA white dwarfs….Pages 134-134
Models of 3 magnetic white dwarf stars in flux and polarization….Pages 135-135
Cyclotron absorption coefficients in the Stokes formalism….Pages 136-136
IUE Echelle observations of the photospheres and circumstellar environments of hot white dwarfs….Pages 137-149
The mass distribution of DA white dwarfs….Pages 150-159
PG 1159 stars and their evolutionary link to DO white dwarfs….Pages 160-170
Detection of ultra-hot pre-white dwarfs….Pages 171-175
White dwarfs in old planetary nebulae….Pages 176-185
New analyses of helium-rich pre-white dwarfs….Pages 186-190
The high mass white dwarf in HR 8210….Pages 191-195
The blue edge of the ZZ Ceti instability strip….Pages 196-196
L745-46A: Lyman alpha broadening and metal abundances….Pages 197-197
A model for the WC-type central star WR 72….Pages 198-198
White dwarf observations with the ultraviolet imaging telescope….Pages 199-199
LB 8827: A DB star with peculiar line profiles….Pages 200-200
Magnetic or pressure shifts of carbon bands in very cool helium-rich white dwarfs?….Pages 201-201
IUE and optical observations of DAO white dwarfs….Pages 202-202
CD-38° 10980 revisited….Pages 203-203
Analysis of the DO white dwarf PG 1034+001: Solution of the He II 4686Å line problem….Pages 204-204
Upper limits for mass-loss rates of PG 1159 stars….Pages 205-205
Exposed white dwarfs in dwarf novae….Pages 207-220
The spatial and kinematic distributions of field hot subdwarfs….Pages 221-231
Fundamental properties of magnetic white dwarfs in CVs….Pages 232-237
Searching for binary white dwarfs: A progress report….Pages 238-242
Iron- and nickel abundances of sdO stars….Pages 243-247
The HST white dwarf project: V 471 Tauri and Procyon B….Pages 248-253
The interacting binary white dwarfs….Pages 254-258
GD1401 and GD984: X-ray binaries with degenerate components….Pages 259-262
The white dwarf in AM Her….Pages 263-263
The final results of: A NLTE analysis of the helium-rich sdO stars in the Palomar Green survey of high galactic latitude blue objects….Pages 264-265
3 He- and metal anomalies in subluminous B stars….Pages 266-266
HST observations of the white dwarf in V471 Tauri….Pages 267-267
Hot stars in globular clusters….Pages 268-268
From interacting binary systems to DB white dwarfs….Pages 269-269
White dwarfs in AM CVn systems….Pages 270-270
Hot subdwarf stars in binary systems….Pages 271-271
CCD imaging, optical spectroscopy and UBVRIJHK photometry of cool companions to hot subdwarfs….Pages 272-272
The multi-periodic pulsating PG1159 white dwarf PG0122+200….Pages 273-283
Asteroseismology of DA white dwarf stars….Pages 284-293
The hydrogen layer mass of the ZZ Ceti stars….Pages 294-294
Grasping at the hot end of ZZ Ceti variability….Pages 295-295
WET experiences in Central Asian observatories….Pages 296-296
The vista for seismological thermometry of the DBV white dwarfs….Pages 297-297
Ionized helium and carbon in the DBV GD358….Pages 298-298
Stabilized restoration of pulsating white dwarf spectra….Pages 299-299
Extreme ultraviolet spectroscopy of white dwarfs….Pages 301-312
White dwarfs in close binaries in the extreme ultraviolet explorer all-sky survey….Pages 313-317
Constraints on DAO white dwarf composition from the ROSAT EUV survey….Pages 318-322
Spectroscopy of the lyman continuum of hot DAs using the extreme ultraviolet explorer….Pages 323-327
An EUV selected sample of DA white dwarfs….Pages 328-331
The EUVE spectrum of the hot DA white dwarf PG 1234+482….Pages 332-336
ORFEUS and EUVE observations of the cool DO HD 149499 B….Pages 337-337
ROSAT studies of DA white dwarfs and the calibration of the PSPC detector….Pages 338-338