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Title: |
Hydrogen-Deficient Stars
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Volume: |
391
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Year: |
2008
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View this Volume on ADS
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Editors: |
Werner, Klaus; Rauch, Thomas
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Synopsis: |
These are the proceedings of a conference on Hydrogen-Deficient Stars held at the University of Tübingen, Germany, from September 17-21 2007. This conference was the third in a series of international colloquia on this topic. The first one took place in Mysore, India in 1985, and the second one a decade alter, 1995 in Bamberg, Germany. Twelve years later it was considered useful to gather again to discuss the progress and the future directions in this field. At the conference 68 participants from 20 countries presented 25 invited talks, 27 contributed talks, and 16 posters. Hydrogen-deficiency is exhibited by many evolved high-and low-mass stars. Therefore research on hydrogen-deficient stars is quite diverse since such stars are found in almost every region of the Hertzsprung-Russell diagram. The stellar classes discussed in detail at the conference were: R Coronae Borealis stars, extreme helium stars, Wolf-Rayet central stars of planetary nebulae, PG 1159 stars and related objects, white dwarfs of spectral type DO, DB, and DQ, and helium-rich subdwarf O and B stars. Also highlighted were hydrogen-deficient stars in close binary systems (AM Cvn and ultracompact low-mass X-ray binaries), massive Wolf-Rayet Stars and their relation to Type I supernovae and Gamma-ray bursts. The different classes of objects discussed in this volume are grouped by spectral and pulsational characteristics, by evolutionary scenarios such as late helium flashes and double-degenerate mergers, and by links among the classes.
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ISBN: |
978-1-58381-652-3
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eISBN:
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978-1-58381-653-0
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Paper Title |
Page |
Authors |
Cover |
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Volume 391 Cover |
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Werner, K.; Rauch, T. |
Front Matter |
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Volume 391 Front Matter |
1 |
Werner, K.; Rauch, T. |
Conference Photograph |
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Volume 391 Conference Photograph |
2 |
Werner, K.; Rauch, T. |
Part 1. Census, RCrB and EHe Stars, Pulsations |
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Hydrogen-Deficient Stars: An Introduction |
3 |
Jeffery, C.S. |
The Evolution of R Coronae Borealis Stars |
17 |
Clayton, G.C. |
Some Observational Aspects of R Coronae Borealis Stars |
25 |
Rao, N.K. |
Fluorine in R Coronae Borealis Stars |
35 |
Pandey, G.; Lambert, D.L.; Rao, N.K. |
Shell-Model Parameters of a Star with the R Coronae Borealis Type Variability |
39 |
Rosenbush, A.E. |
Optical Spectrum of ZUMi during its Maximum Light |
43 |
Kipper, T.; Klochkova, V.G. |
Possible Indicator of Incipient Light Minimum in a Star with the R Coronae Borealis Type Variability |
45 |
Rosenbush, A.E. |
Seasonal Variations of Radial Velocity of RY Sagittarii, a Star with the R Coronae Borealis Type Variability |
47 |
Rosenbush, A.E.; Gorynya, N.A. |
DY Per: Extremely Cool Galactic RCB Star? |
49 |
Zacs, L.; Alksnis, O.; Mondal, S.; Chen, W.P.; Pugach, A.F.; Musaev, F.A. |
18O and the Origins of HdC and R CrB Stars |
51 |
Geballe, T.R.; Clayton, G.C.; Asplund, M.; Herwig, F.; Fryer, C. |
Extreme Helium Stars: A Decade of Progress |
53 |
Jeffery, C.S. |
Model Atmospheres and Spectra for Cool Hydrogen-Deficient Stars and Peculiar Giants |
65 |
Pavlenko, Y.V. |
Radial and Nonradial Pulsations in RCB and EHe-B Stars |
69 |
Saio, H. |
Part 2. [WC], WELS, PG1159, O(He), Born-Again Stars, Pulsations, Planetary Nebulae |
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Physical and Wind Properties of [WC] Stars |
83 |
Crowther, P.A. |
Determining Element Abundances of [WC]-type Central Stars for Probing Stellar Evolution and Nucleosynthesis |
95 |
Todt, H.; Peña, M.; Hamann, W.-R.; Gräfener, G. |
WR Wind Models: [WC]-Type CSPN vs. Massive Stars |
99 |
Gräfener, G.; Hamann, W.-R.; Todt, H. |
WELS – Ultraviolet Spectra and Expanding Atmosphere Models |
103 |
Marcolino, W.L.F. |
The Nature of M 2−29 |
107 |
Gesicki, K.; Hajduk, M.; Zijlstra, A.A. |
Elemental Abundances in PG1159 Stars |
109 |
Werner, K.; Rauch, T.; Reiff, E.; Kruk, J.W. |
Search for Iron, Nickel, and Fluorine in PG1159 Stars |
121 |
Reiff, E.; Rauch, T.; Werner, K.; Kruk, J.W.; Koesterke, L. |
UV and FUV Spectroscopy of the Hybrid PG1159-Type Central Star of NGC7094 |
125 |
Ziegler, M.; Rauch, T.; Reiff, E.; Werner, K.; Kruk, J.W.; Oliveira, C.M. |
Transient Mass-Loss Events in the PG 1159 Central Star of Longmore 4 |
129 |
Bond, H.E. |
New Light Curves and Spectra of the Close PG1159 Binary System SDSS J212531.92−010745.9 |
133 |
Schuh, S.; Nagel, T.; Traulsen, I.; Beeck, B. |
O(He) Stars |
135 |
Rauch, T.; Reiff, E.; Werner, K.; Kruk, J.W. |
FG Sge, V605 Aql, Sakurai – Facts and Fictions |
139 |
Schönberner, D. |
On the Evolved Nature of CK Vul |
151 |
Hajduk, M.; Zijlstra, A.A.; van Hoof, P.A.M.; Lopez, J.A.; Drew, J.E.; Evans, A.; Eyres, S.P.S.; Gesicki, K.; Greimel, R.; Kerber, F.; Kimeswenger, S.; Richer, M.G. |
Recent Observations of V4334 Sgr and V605 Aql |
155 |
van Hoof, P.A.M.; Hajduk, M.; Zijlstra, A.A.; Herwig, F.; van de Steene, G.C.; Kimeswenger, S.; Evans, A. |
Optical Spectroscopy of V4334 Sgr in 1996 |
159 |
Savanov, I.; Jeffery, S.; Pollacco, D.; Shulyak, D. |
Studying the Old Planetary Nebula of V4334 Sgr |
163 |
Hajduk, M.; Gesicki, K.; van Hoof, P.A.M.; Lopez, J.A.; Zijlstra, A.A. |
Properties of [WC] Planetary Nebulae |
165 |
Górny, S.K. |
Morphologies of the Nebulae around “Born-Again” Central Stars of Planetary Nebulae |
177 |
Kimeswenger, S.; Zijlstra, A.A.; van Hoof, P.A.M.; Hajduk, M.; Herwig, F.; Lechner, M.F.M.; Eyres, S.P.S.; Van de Steene G.C. |
Central Stars of MASH Planetary Nebulae |
181 |
Miszalski, B.; Acker, A.; Parker, Q.A. |
Hydrogen-Deficient Compact Pulsators: The GW Virginis Stars and the Variable DB White Dwarfs |
183 |
Quirion, P.-O.; Dupret, M.-A.; Fontaine, G.; Brassard, P. |
Search for Pulsations in H-deficient Planetary-Nebula Nuclei |
195 |
Solheim, J.-E.; González Pérez, J.M.; Vauclair, G. |
Asteroseismological Modeling of PG 1159−035 |
199 |
Córsico, A.H.; Althaus, L.G.; Miller Bertolami, M.M.; Kepler, S.O.; Costa, J.E.S. |
Part 3. Formation Scenarios for Hot H-Deficient Post-AGB Stars |
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The Importance of the Remnant’s Mass for VLTP Born-Again Times. Implications for V4334 Sgr and V605Aql |
203 |
Miller Bertolami, M.M.; Althaus, L.G. |
[WC] and PG1159 Central Stars of Planetary Nebulae: The Need for an Alternative to the Born-Again Scenario |
209 |
De Marco, O. |
The Formation of Hydrogen Deficient Stars through Common Envelope Evolution |
221 |
Diehl, S.; Fryer, C.; Herwig, F. |
Part 4. WD, sdO/B, CV, Massive WR, Pulsations |
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Hot DO and DB White Dwarfs from the Sloan Digital Sky Survey |
227 |
Liebert, J.; Krzesinski, J.; Hügelmeyer, S.; Dreizler, S. |
Post Iron Group Elements in DO Stars |
235 |
Boyce, D.D.; Barstow, M.A.; Dobbie, P.D.; Aston, J.H.; Booles, B.C.; Preval, S.P.; Laird, R.J.M.; James, F.A.; Barstow, J.K.; Forbes, A.E. |
KPD0005+5106: Hottest DO White Dwarf Much Hotter Than Assumed |
239 |
Werner, K.; Rauch, T.; Kruk, J.W. |
Hot DQ White Dwarf Stars: A New Challenge to Stellar Evolution |
241 |
Dufour, P.; Liebert, J.; Fontaine, G.; Behara, N. |
Subluminous O Stars - Origin and Evolutionary Links |
245 |
Heber, U. |
The Origin of Helium-Rich Subdwarf O Stars |
257 |
Napiwotzki, R. |
Helium-Rich Subdwarf B Stars |
261 |
Ahmad, A.; Jeffery, C.S. |
Modeling He-rich Subdwarfs through the Hot-Flasher Scenario: First Results |
265 |
Miller Bertolami, M.M.; Althaus, L.G. |
Modeling the Light Curve of V445 Puppis: Helium Nova on a Very Massive White Dwarf |
267 |
Kato, M.; Hachisu, I.; Kiyota, S. |
List of Helium Novae |
271 |
Rosenbush, A.E. |
Hydrogen Deficient Donors in Low-Mass X-ray Binaries |
273 |
Nelemans, G. |
Metal Abundances in Accretion Discs of AMCVn Binaries |
281 |
Nagel, T.; Kusterer, D.-J.; Rauch, T.; Werner, K. |
Accretion Disk Winds in AM CVn Binaries – a Monte Carlo Approach |
285 |
Kusterer, D.-J.; Nagel, T.; Werner, K. |
XMM-Newton Observations of Two Soft X-Ray Selected Magnetic CVs |
287 |
Traulsen, I.; Reinsch, K.; Dreizler, S. |
ULTRACAM Observations of two CV Pulsators |
289 |
Copperwheat, C.M.; Marsh, T.R.; Dhillon, V.S.; Littlefair, S.; Woudt, P.; Gänsicke, B. |
Wolf-Rayet Analyses |
293 |
Hamann, W.-R.; Gräfener, G.; Feldmeier, A.; Oskinova, L.; Barniske, A.; Liermann, A. |
The Metallicity Dependence of Wolf-Rayet Mass Loss |
305 |
Onifer, A.; Heger, A.; Abdallah, J. |
Stability and Pulsations of Wolf-Rayet Stars |
307 |
Glatzel, W. |
Non-linear Pulsations in Wolf-Rayet Stars |
319 |
Wende, S.; Glatzel, W.; Schuh, S. |
Part 5. WR/GRB, Intermediate-Mass Binaries, SNIa |
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The Formation of Hydrogen-Deficient Stars in Binaries |
323 |
Podsiadlowski, Ph. |
On the Road to Understanding Type Ia Progenitors: Precision Simulations of Double Degenerate Mergers |
335 |
Fryer, C.L.; Diehl, S. |
The Progenitors of Type I SNe |
347 |
Mazzali, P.A.; Nomoto, K.; Maeda, K.; Deng, J.; Benetti, S.; Röpke, F.; Hillebrandt, W. |
Helium Stars as Supernova Progenitor |
359 |
Waldman, R.; Yungelson, L.R.; Barkat, Z. |
Part 6. Conference Summary |
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HYDEF07: A Summary on the Fly |
365 |
Liebert, J. |
Back Matter |
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Volume 391 Back Matter |
379 |
Werner, K.; Rauch, T. |
Photographs |
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Volume 391 Photographs |
999 |
Werner, K.; Rauch, T. |
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