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 (Chair: Gerard Vauclair) 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 Convective Coupling: A Largely Overlooked Effect in the 09:50-10:10 Gilles Fontaine Cooling of White Dwarfs Ne22 Sedimentation in Liquid White Interiors: Cooling and 10:10-10:30 Christopher Deloye Seismological Impact 10:30-10:50 Detlef Schönberner From red giants to white dwarfs: a hydrodynamical simulation of the planetary nebula stage 10:50-11:20 Coffee break Session 2: SNIa Progenitors (Chair: Pierre Maxted) 11:20-11:40 Enrico Cappellaro Supernova Ia: constraints for the progenitor scenarios CO WDs accreting CO-rich matter: the lifting effect of 11:40-12:00 Luciano Piersanti 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 (Chair:Elizabeth Green) 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 The results of diffusion calculations with mass loss in 15:10-15:30 Klaus Unglaub subdwarf B stars and comparison with the case of hot white dwarfs 15:30-16:00 Coffee break 16:00-16:20 Malvina Billeres From observations to asteroseismological analysis Fundamental parameters of sdB pulsators from 16:20-16:40 Stephane Charpinet asteroseismology Simultaneous time-resolved spectroscopy and multi-band 16:40-17:00 Siegfried Falter photometry of the sdBV PG1605+072 17:00-17:20 Roberto Silvotti Low gravity sdB pulsators: the case of HS2201+2610 17:20-17:40 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 (Chair François Wesemael) A New Determination of the Spectroscopic Mass and Radius 09:00-09:20 Jay Holberg for Sirius B 09:20-09:40 Klaus Werner Metal abundances in PG1159 stars from CHANDRA and FUSE spectroscopy High resolution EUV and FUV spectroscopy of DA white 09:40-10:00 Martin Barstow 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 Sonja Landenberger Improved results for equilibrium abundances from diffusion 12:10-12:30 Schuh calculations Detection of Oxygen and a Chromosphere in the Massive DQ 12:30-12:50 Harry Shipman White Dwarf G 227-5 12:50-14:20 LUNCH Session 5: Magnetic White Dwarfs (Chair Antonio Kanaan) 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 dwarfs 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 (Chair: Darragh O’Donoghue) 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 The role of time dependent diffusion in asteroseismological Benvenuto studies of white dwarf stars White Dwarf Asteroseismology: disentangling structure in 11:50-12:10 Michael Montgomery the core from structure in the envelope Measuring C12(alpha,gamma)O16 from White Dwarf 12:10-12:30 Travis Metcalfe Asteroseismology Asteroseismology of the group of pulsating DB white dwarf 12:30-12:50 Gerald Handler stars 12:50-14:20 LUNCH Session 7: White Dwarfs in Binaries (Chair: Domitilla de Martino) 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 The Origin of the White Dwarf in V471 Tauri 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 Eclipsing binary ms pulsar PSR J1740-5340 - pre-He white 17:10-17:30 Sarna Marek J. dwarf + ms pulsar system 17:30-17:50 Poster Session 18:00 Bus departure for down-town hotels Thursday 27 June Session : White Dwarfs in Binaries (continue, Chair: Staszek Zola) 09:00-09:20 Edward Sion The Properties of White Dwarfs in Non-Magnetic Cataclysmic Variables White Dwarfs in Cataclysmic Variables: HST Results on GW 09:20-09:40 Paula Szkody Lib and Gleanings from SDSS Provide Insight on the Effects of Accretion The Thermal State of Accreting White Dwarfs in Cataclysmic 09:40-10:00 Lars Bildsten Variables: Finding Faint CVs in the Field and in Globular Clusters 10:00-10:20 Klaus Beuermann White Dwarfs in magnetic Cataclysmic Variables Principal components of variability of the accretion structures 10:20-10:40 Ivan L. Andronov near white dwarf 10:40-11:10 Coffee break 11:10-11:30 Matt Burleigh Imaging planets around nearby white dwarfs Rapid fotometric changes in the temporal spectra of the PNN 11:30-11:50 Jose M. Gonzalez Perez 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 (Chair Steven Kawaler) 09:30-09:50 Enrique Garcia - Berro The population of halo white dwarfs A distant population of white dwarfs stars in the Anglo- 09:50-10:10 Stephane Vennes Australian 2DF survey 10:10-10:30 Jay Fahiri 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 12:40-12:50 Concluding Remarks 12:50 LUNCH 14:00-~15:00 Special Session of the Whole Earth Telescope.