NATO Advanced Research Workshop on WHITE DWARFS

Scientific Programme

Monday 24 June

08:30-09:00 Registration
09:00-09:10 Welcome to the NATO ARW 13th European Workshop on White Dwarfs
Session 1: White Dwarf Structure and Evolution
09:10-09:30 Volker Weidemann On Oxygen/Neon White Dwarfs
09:30-09:50 Oscar Straniero Progenitors evolution and chemical stratification of CO white dwarfs
09:50-10:10 Gilles Fontaine Convective Coupling: A Largely Overlooked Effect in the Cooling of White Dwarfs
10:10-10:30 Christopher Deloye ^22Ne Sedimentation in Liquid White Interiors: Cooling and Seismological Impact
10:30-10:50 Detlef Sch"onberner From red giants to white dwarfs: a hydrodynamical simulation of the planetary nebula stage
10:50-11:20 Coffee break
Session 2: SNIa Progenitors
11:20-11:40 Enrico Cappellaro Supernova Ia: constraints for the progenitor scenarios
11:40-12:00 Luciano Piersanti CO WDs accreting CO-rich matter: the lifting effect of rotation
12:00-12:20 Ralf Napiwotzki Search for progenitors of SN Ia
12:20-12:40 Christian Karl 'SPY'ing on double degenerates
12:40-14:10 Lunch
Session 3: Subdwarf B stars
14:10-14:30 Uli Heber On the progenitors of helium core white dwarfs
14:30-14:50 Simon Jeffery The progeny of binary white dwarf mergers; extreme helium stars, R CrB stars and subdwarf B stars
14:50-15:10 Luisa Morales-Rueda Twenty three new subdwarf periods
15:10-15:30 Malvina Billeres From observations to asteroseismological analysis
15:30-16:00 Coffee break
16:00-16:20 Stephane Charpinet Fundamental parameters of sdB pulsators from asteroseismology
16:20-16:40 Siegfried Falter Simultaneous time-resolved spectroscopy and multi-band photometry of the sdBV PG1605+072
16:40-17:00 Roberto Silvotti Low gravity sdB pulsators: the case of HS2201+2610
17:00-17:20 Mike Reed Feige 48: Another piece of the pulsating sdB star puzzle
18:00 Bus departure for down-town hotels

Tuesday 25 June

Session 4: Atmospheres and chemical composition
09:00-09:20 Jay Holberg A New Determination of the Spectroscopic Mass and Radius for Sirius B
09:20-09:40 Klaus Werner Metal abundances in PG1159 stars from CHANDRA and FUSE spectroscopy
09:40-10:00 Martin Barstow High resolution EUV and FUV spectroscopy of DA whtie dwarfs
10:00-10:20 Pierre Chayer Detection of Photospheric O VI in the FUSE Spectra of Low Metallicity White Dwarfs
10:20-10:40 Jeffrey Kruk FUSE Observations of the DAO White Dwarf Feige 55
10:40-11:10 Coffee break
11:10-11:30 Stefan Dreizler FUSE Spectra of DO White Dwarfs
11:30-11:50 Detlev Koester Metal traces in cool white dwarfs
11:50-12:10 Simon Good A sample of DAO white dwarfs
12:10-12:30 Sonja Landenberger Schuh Improved results for equilibrium abundances from diffusion calculations
12:30-12:50 Harry Shipman Detection of Oxygen and a Chromosphere in the Massive DQ White Dwarf G 227-5
12:50-14:20 Lunch
Session 5: Magnetic White Dwarfs
14:20-14:40 Stefan Jordan Analysis of magnetic DA and DB white dwarfs
14:40-15:00 Adela Kawka Spectropolarimetric survey of hydrogen-rich white dwarfs in the southern hemisphere
15:00-15:20 Irmela Bues Three very cool helium-rich magnetic white dwarfs
15:20-15:40 Andrew Cumming Magnetic Field Evolution in Accreting White Dwarfs
15:40-16:10 Coffee break
16:10-16:30 Alexander Serber Radiation-Driven Diskons: an Overview
16:30-16:50 Sergei Koryagin Constraints on the parameters of magnetic white dwarf corona by its cyclotron emission
16:50-17:50 Poster Session
18:00 Bus departure for down-town hotels

Wednesday 26 June

Session 6: Variable White Dwarfs
09:00-09:20 Pierre Bergeron The ZZ Ceti Instability Strip: Facts and Fallacies
09:20-09:40 Nelson Falcon Heat waves and WD cooling theory in ZZ ceti stars
09:40-10:00 Anjum Mukadam Searching for Stable ZZ Ceti (HDAV) Pulsators
10:00-10:20 Denis Sullivan The DBV White Dwarf EC 20058-5234
10:20-10:40 Judith L. Provencal Extending the DB Instability Strip
10:40-11:10 Coffee break
11:10-11:30 S.O. Kepler Period stability on pulsating white dwarfs
11:30-11:50 Omar Gustavo Benvenuto The role of time dependent diffusion in asteroseismological studies of white dwarf stars
11:50-12:10 Michael Montgomery White Dwarf Asteroseismology: disentangling structure in the core from structure in the envelope
12:10-12:30 Travis Metcalfe Measuring ^12C(alpha,gamma)^16O from White Dwarf Asteroseismology
12:30-12:50 Gerald Handler Asteroseismology of the group of pulsating DB white dwarf stars
12:50-14:20 Lunch
Session 7: White Dwarfs in Binaries
14:20-14:40 Thomas Marsh Direct Impact Accretors: evolutionary links between detached and semi-detached double white dwarfs
14:40-15:00 Francesca D'Antona Helium white dwarfs remnant of binary evolution in Globular Clusters
15:00-15:20 Katrina Exter Deconstructing a few post common-envelope binaries
15:20-15:40 Howard E. Bond HST observations of White Dwarfs in close and wide binaries
15:40-16:00 Jordi Isern Gravitational waves from the merging of white dwarfs
16:00-16:30 Coffee break
16:30-16:50 Jan-Erik Solheim The AM CVn systems and their White Dwarfs
16:50-17:10 Rex Saffer Resolving Close Double Degenerates with HST's FGS1r
17:10-17:30 Sarna Marek J. Eclipsing binary ms pulsar PSR J1740-5340 - pre-He white dwarf + ms pulsar system
17:30-17:50 Poster Session
18:00 Bus departure for down-town hotels

Thursday 27 June

Session 7: White Dwarfs in Binaries (continue)
09:00-09:20 Edward Sion The Properties of White Dwarfs in Non-Magnetic Cataclysmic Variables
09:20-09:40 Paula Szkody White Dwarfs in Cataclysmic Variables: HST Results on GW Lib and Gleanings from SDSS Provide Insight on the Effects of Accretion
09:40-10:00 Lars Bildsten The Thermal State of Accreting White Dwarfs in Cataclysmic Variables: Finding Faint CVs in the Field and in Globular Clusters
10:00-10:20 Klaus Beuermann White Dwarfs in magnetic Cataclysmic Variables
10:20-10:40 Ivan L. Andronov Principal components of variability of the accretion structures near white dwarfs
10:40-11:10 Coffee break
11:10-11:30 Matt Burleigh Imaging planets around nearby white dwarfs
11:30-11:50 Jose M. Gonzalez Perez Rapid fotometric changes in the temporal spectra of the PNN NGC246
11:50-12:10 Eva-Maria Pauli(*) 3-dimensional space motions of white dwarfs observed by the SPY project
12:10-12:50 Poster Session
12:50-14:20 Lunch
14:30 Departure for half-day tour and Social Dinner

(*) Talk moved from Session 8 (speaker departure)

Friday 28 June

Session 8: Cool White Dwarfs, WD populations, Astrometry and Surveys
09:30-09:50 Enrique Garcia-Berro The population of halo white dwarfs
09:50-10:10 Stephane Vennes A distant population of white dwarf stars in the Anglo-Australian 2DF survey
10:10-10:30 Jay Farihi Discovery of the coolest known helium atmosphere disk white dwarf
10:30-11:00 Coffee break
11:00-11:20 Martin Altmann The population membership of sdB stars: a kinematical analysis
11:20-11:40 Derek Homeier White Dwarfs from the Hamburg Quasar Survey
11:40-12:00 Maria Teresa Ruiz White Dwarfs in the Calan-ESO Survey
12:00-12:40 James Liebert Discussion on WD Luminosity Function
Concluding Remarks
12:50 Lunch
14:00-~15:00 Romualdas Kalytis Special Session of the Whole Earth Telescope

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