Program
| Time |
Event |
|
|
18:00 - 20:00
|
Welcome reception / Registration |
|
| Time |
Event |
|
|
08:55 - 09:00
|
Welcoming / Opening Remarks - Stéphane Charpinet |
|
|
09:00 - 09:10
|
Introduction to Session 1 - Stephan Geier |
|
|
09:10 - 10:30
|
Session 1: Physiognomy of binary systems with hot subdwarfs or related objects - Chair: Stéphane Charpinet |
|
| 09:10 - 09:30 |
› A Radial Velocity Survey of Candidate Variable Hot Subdwarfs from Gaia DR2 - Nathan Grinalds & Kyle Corcoran, Department of Chemistry, High Point University |
|
| 09:30 - 09:50 |
› New Variable Hot Subdwarfs from the Evryscope - Brad Barlow, Department of Physics, High Point University |
|
| 09:50 - 10:10 |
› Short period hot subdwarf variables - Thomas Kupfer, Kavli Institute for Theoretical Physics/UC Santa Barbara |
|
| 10:10 - 10:30 |
› Orbital and atmospheric parameters of two long period O-type hot subdwarf binaries - Francisco Molina, Valencian International University |
|
|
10:30 - 11:00
|
Coffee break |
|
|
11:00 - 12:25
|
Session 1: Physiognomy of binary systems with hot subdwarfs or related objects - Chair: Tiara Battich |
|
| 11:00 - 11:20 |
› Modeling wide hot subdwarf binaries with MESA - Joris Vos |
|
| 11:20 - 11:40 |
› Hot subdwarfs with cool companions - Veronika Schaffenroth, Institute for Physics and Astronomy, University of Potsdam |
|
| 11:40 - 12:00 |
› Photometric variability of binary hot subdwarf stars: from the ground to TESS - Ingrid Pelisoli, University of Potsdam |
|
| 12:00 - 12:05 |
› Variability in the light curves of Hot Subdwarfs - Tilaksingh Pawar, Institute for Physics and Astronomy, University of Potsdam |
|
| 12:05 - 12:25 |
› The X-ray emission of the compact He-poor sdO star Feige 34 - Nicola La Palombara, INAF, IASF-Milano |
|
|
12:25 - 14:00
|
Lunch break |
|
|
14:00 - 14:40
|
Session 1: Physiognomy of binary systems with hot subdwarfs or related objects - Chair: Holly Preece |
|
| 14:00 - 14:20 |
› WD+He star systems and the formation of accretion-induced collapse events - Dongdong Liu, Yunnan Observatories, Chinese Academy of Sciences |
|
| 14:20 - 14:40 |
› Recent progress in our understanding of Hen 2-428 - Nicole Reindl, Institut für Physik und Astrophysik [Potsdam] |
|
|
14:40 - 15:25
|
Session 2.1: Hot subdwarf properties from binary studies - Chair: Holly Preece |
|
| 14:40 - 15:00 |
› NY Vir System Revisited in the Light of New Data - Ekrem Esmer, CFisUC, Ankara University |
|
| 15:00 - 15:20 |
› HW Vir: I'll be back! - Roy Østensen, N/A |
|
| 15:20 - 15:25 |
› The pulsating sdB+dM binary 2M1938+4603 revisited combining asteroseismology and eclipse timing - somaye soomandar, IRAP, Université de Toulouse / The University of Birjand |
|
|
15:25 - 16:00
|
Coffee break |
|
|
16:00 - 16:20
|
Session 2.1: Hot subdwarf properties from binary studies - Chair: Holly Preece |
|
| 16:00 - 16:20 |
› The Romer delay in HW Vir type binaries - Andrzej Baran, Mt. Suhora Observatory |
|
|
16:20 - 16:50
|
Discussion closing Sessions 1 and 2.1 - Chaired by Thomas Kupfer & Joris Vos |
|
|
16:50 - 17:30
|
Adjourn / Poster viewing |
|
| Time |
Event |
|
|
09:00 - 09:10
|
Introduction to Session 2 - Uli Heber |
|
|
09:10 - 10:35
|
Session 2.2 : Hot subdwarf properties from atmospheric studies - Chair: Veronika Schaffenroth |
|
| 09:10 - 09:30 |
› The 3He anomaly and atmospheric helium stratification of sdB and BHB stars - Ulrich Heber, Dr. Remeis-Sternwarte, Universität Erlangen-Nürnberg |
|
| 09:30 - 09:50 |
› Fundamental Parameters of Hot Subdwarf Stars from Gaia Astrometry - David Schneider, Dr. Karl Remeis Observatory & ECAP, University Erlangen-Nürnberg |
|
| 09:50 - 10:10 |
› The chemical composition of heavy-metal hot subdwarfs: HZ44 and HD127493 - Matti Dorsch, Institut für Physik und Astronomie, Universität Potsdam, Dr. Remeis-Sternwarte, Universität Erlangen-Nürnberg |
|
| 10:10 - 10:30 |
› Feige 46: a second pulsating intermediate He-sdOB and heavy-metal star ? - Marilyn Latour, Universität Göttingen |
|
| 10:30 - 10:35 |
› The SALT survey of chemically peculiar subdwarfs - Simon Jeffery, Trinity College Dublin, Armagh Observatory and Planetarium |
|
|
10:35 - 10:55
|
Coffee break |
|
|
10:55 - 11:10
|
Session 2.2 : Hot subdwarf properties from atmospheric studies - Chair: Veronika Schaffenroth |
|
| 10:55 - 11:00 |
› TheoSSA: Synthetic Spectra of the Geier Grid available on Demand - Thomas Rauch, University Tübingen |
|
| 11:00 - 11:05 |
› Non-local Thermodynamic Equilibrium Model-Atmosphere Spectra of sdOB stars on Demand - Thomas Rauch, University Tübingen |
|
| 11:05 - 11:10 |
› NLTE spectral analysis of the intermediate helium-rich sdB CPD-20°1123 - Thomas Rauch, University Tübingen |
|
|
11:10 - 12:40
|
Session 2.3: Hot subdwarf properties from asteroseismic studies - Chair: Maja Vuckovic |
|
| 11:10 - 11:30 |
› Putting sdB star asteroseismology to the test with GAIA - Suzanna Randall, European Southern Observatory |
|
| 11:30 - 11:50 |
› Asteroseismic modeling of hot subdwarfs observed by TESS - Valerie Van Grootel, Space Sciences, Technologies and Astrophysics Research Institute |
|
| 11:50 - 12:10 |
› Asteroseismology of the g-mode sdB pulsator TIC 278659026 - Stéphane Charpinet, Institut de recherche en astrophysique et planétologie |
|
| 12:10 - 12:30 |
› Probing the convective cores of core-helium-burning giants using seismology - Sebastien Deheuvels, IRAP |
|
| 12:30 - 12:35 |
› Gauging convective cores in sdB stars with pulsating DA WDs - Tiara Battich, Instituto de Astrofísica de La Plata, Universidad Nacional de La Plata, CONICET |
|
| 12:35 - 12:40 |
› Theoretical pulsation spectra for the 4th generation models of hot subdwarf stars - Valerie Van Grootel, Space Sciences, Technologies and Astrophysics Research Institute |
|
|
12:40 - 14:00
|
Lunch break |
|
|
14:00 - 14:40
|
Session 2.3: Hot subdwarf properties from asteroseismic studies - Chair: Maja Vuckovic |
|
| 14:00 - 14:20 |
› Asteroseismology of Kepler/K2 white dwarf stars - Barbara Castanheira, Baylor University |
|
| 14:20 - 14:40 |
› Asteroseismology of Lambda Bootis stars - Benjamin Fernando, Oxford University |
|
|
14:40 - 15:10
|
Discussion closing Session 2 - Chaired by Tony Lynas-Gray & Marilyn Latour |
|
|
15:10 - 15:20
|
Introduction to Session 3 - Zhanwen Han |
|
|
15:20 - 15:40
|
Session 3.1: Hot subdwarf populations and related objects - Chair: Nicole Reindl |
|
| 15:20 - 15:40 |
› Gaia's treasure chest - The quest to compile an all-sky sample of hot subdwarfs - Stephan Geier, University of Potsdam |
|
|
15:40 - 16:00
|
Coffee break |
|
|
16:10 - 17:15
|
Session 3.1: Hot subdwarf populations and related objects - Chair: Nicole Reindl |
|
| 16:10 - 16:30 |
› Kinematics of sdB and sdOB stars from GAIA and SDSS data - Alexander Bastian, Institute for Physics and Astronomy, University of Potsdam |
|
| 16:30 - 16:50 |
› Quantitative spectral analyses of blue horizontal branch stars - Steven Hämmerich, Dr. Karl Remeis Observatory & ECAP, University Erlangen-Nürnberg |
|
| 16:50 - 16:55 |
› Gaia Data Release 2 Catalogue of Extremely-low Mass White Dwarf Candidates - Ingrid Pelisoli, University of Potsdam |
|
| 16:55 - 17:15 |
› The mystery on the origin of extreme horizontal branch stars in globular clusters - Annalisa Calamida, SPACE TELESCOPE SCIENCE INSTITUTE - AURA |
|
|
17:15 - 17:45
|
Adjourn / Poster viewing |
|
| Time |
Event |
|
|
09:00 - 10:25
|
Session 3.2: Origin and evolution, progenies and progenitors - Chair: Weikai Zong |
|
| 09:00 - 09:20 |
› Hot Subdwarf Stars from LAMOST DR5 and Gaia DR2 - Zhanwen Han, Yunnan Observatories |
|
| 09:20 - 09:40 |
› Mining the future of low-mass, core-He-burning hot subdwarfs - JJ Hermes, Boston University |
|
| 09:40 - 10:00 |
› Helium Stars, Heavy Metals, High Velocities and Explosions - Simon Jeffery, Trinity College Dublin, Armagh Observatory and Planetarium |
|
| 10:00 - 10:05 |
› Helium star donors to thermonuclear supernovae - Josiah Schwab, University of California, Santa Cruz |
|
| 10:05 - 10:25 |
› Effect of L3 mass loss on formation of sdB-MS binaries - Alexey Bobrick, Lund Observatory |
|
|
10:25 - 10:50
|
Coffee break |
|
|
10:50 - 12:30
|
Session 3.2: Origin and evolution, progenies and progenitors - Chair: Ingrid Pelisoli |
|
| 10:50 - 11:10 |
› Formation of hot subdwarf B stars with neutron star components - You Wu, Yunnan Observatories, Chinese Academy of Sciences |
|
| 11:10 - 11:30 |
› The Formation and Evolution of R Coronae Borealis Stars - Josiah Schwab, University of California, Santa Cruz |
|
| 11:30 - 11:50 |
› Thermal Timescale Mass Transfer and the Growth of Helium White Dwarfs - Evan Bauer, Physics Department, UC Santa Barbara |
|
| 11:50 - 12:10 |
› He-shell burning hot subdwarf B stars as candidates for blue large-amplitude pulsations - Xuefei CHEN, Yunnan Observatories |
|
| 12:10 - 12:30 |
› BLAPS: the Possible Surviving Companions of Type Ia Supernovae - Xiangcun MENG, Yunnan Observatories, Chinese Academy of Sciences |
|
|
12:30 - 13:00
|
Discussion closing Session 3 - Chaired by Annalisa Calamida & Xuefei Chen |
|
|
13:00 - 14:00
|
Lunch break |
|
|
14:00 - 18:00
|
Free afternoon / Activities / Excursions |
|
| Time |
Event |
|
|
09:00 - 09:10
|
Introduction to Session 4 - Suzanna Randall |
|
|
09:10 - 10:30
|
Session 4: Hot subdwarfs and their pulsations - Chair: Somaye Soomandar |
|
| 09:10 - 09:30 |
› A Pulsation Mechanism for He-rich sdOBV stars - Tiara Battich, Instituto de Astrofísica de La Plata |
|
| 09:30 - 09:50 |
› Asteroseismology of Tidally Distorted sdB Stars - Holly Preece, Institute of Astronomy, University of Cambridge & Armagh Observatory and Planetarium |
|
| 09:50 - 10:10 |
› Musical Orchestra of sub dwarf B stars in NGC6791 - Sachu Sanjayan, Copernicus Astronomical Center of the Polish Academy of Sciences, Pedagogical University of Krakow |
|
| 10:10 - 10:30 |
› On a mode geometry in a sample of subdwarf B stars observed by TESS - Sumanta Sahoo, Copernicus Astronomical Center of the Polish Academy of Sciences, Pedagogical University of Krakow |
|
|
10:30 - 11:00
|
Coffee break |
|
|
11:00 - 12:20
|
Session 4: Hot subdwarfs and their pulsations - Chair: Benjamin Fernando |
|
| 11:00 - 11:20 |
› Gravity (g) mode pulsators from the TESS mission - Murat Uzundag, University of Valparaiso |
|
| 11:20 - 11:40 |
› Kepler view on sdB pulsators: amplitude and frequency variations of oscillation modes - Weikai Zong, Beijing Normal University |
|
| 11:40 - 12:00 |
› Pulsation Timing Analysis for a Pulsating Subdwarf B star, EC 05217-3914 - Tomomi Otani, Embry-Riddle Aeronautical University |
|
| 12:00 - 12:20 |
› HD 4539: a bright single sdB star showing high-degree g-modes with l up to 12 - Roberto Silvotti, INAF - Osservatorio Astrofisico di Torino |
|
|
12:20 - 12:50
|
Discussion closing Session 4 - Chaired by Dave Kilkenny & Andy Baran |
|
|
12:50 - 14:00
|
Lunch break |
|
|
14:00 - 14:10
|
Introduction to Session 5 - Simon Jeffery |
|
|
14:10 - 15:30
|
Session 5: Evolved compact stars as laboratories for stellar physics - Chair: Matti Dorsh |
|
| 14:10 - 14:30 |
› Recent results on the peculiar sdO binary HD49798 - Sandro Mereghetti, INAF, IASF-Milano |
|
| 14:30 - 14:50 |
› S-process nucleosynthesis during the formation of He-rich hot subdwarfs - Tiara Battich, Instituto de Astrofísica de La Plata, Universidad Nacional de La Plata, CONICET |
|
| 14:50 - 15:10 |
› Modern evolutionary modelling of sdB stars using the MESA code - Jakub Ostrowski, Pedagogical University of Krakow |
|
| 15:10 - 15:30 |
› Atomic Diffusion in Chemically Peculiar Hot Subdwarfs - Conor Byrne, Armagh Observatory and Planetarium, Trinity College Dublin |
|
|
15:30 - 16:00
|
Coffee break |
|
|
16:00 - 16:40
|
Session 5: Evolved compact stars as laboratories for stellar physics - Chair: Steven Hämmerich |
|
| 16:00 - 16:20 |
› Super Metal-Rich Hot Subdwarfs as Tools for Atomic Physics - Alexander Landstorfer, University of Tübingen |
|
| 16:20 - 16:40 |
› The formation of a CONe white dwarf through super AGB evolution - Yan Li, Yunnan Observatories, Chinese Academy of Sciences |
|
|
16:40 - 17:10
|
Discussion closing Session 5 - Chaired by Simon Jeffery & Josiah Schwab |
|
|
17:10 - 17:30
|
Adjourn / Poster viewing |
|
|
19:00 - 22:30
|
Conference dinner |
|
| Time |
Event |
|
|
10:00 - 12:00
|
Open discussion, Prospects and Concluding Remarks - Chaired by Roy Ostensen & Zhanwen Han |
|
|
12:00 - 14:00
|
End of meeting / Lunch time |
|
|
