LIST OF PARTICIPANTS Name Mail Institution Baran Andrzej [email protected] Pedagogical University of Cracow Barlow Brad [email protected] High Point University Bastian Alexander [email protected] Inst. for Physics & Astronomy, Univ. of Potsdam, DE Battich Tiara [email protected] Instituto de Astrofísica de La Plata, Argentina Bauer Evan [email protected] University of California, Santa Barbara Bobrick Alexey [email protected] Lund Observatory Byrne Conor [email protected] Trinity College Dublin Calamida Annalisa [email protected] Space Telescope Science Institute - AURA Castanheira Barbara [email protected] Baylor University Charpinet Stéphane [email protected] IRAP, CNRS, Université Toulouse III CHEN Xuefei [email protected] Yunnan Observatories, Chinese Academy of Sciences Corcoran Kyle [email protected] High Point University Deheuvels Sébastien [email protected] IRAP, CNRS, Université Toulouse III Dorsch Matti [email protected] Inst für Physik & Astronomie, Univ. Potsdam, DE Esmer Ekrem [email protected] Department of Physics, University of Coimbra Fernando Benjamin [email protected] University of Oxford Geier Stephan [email protected] Inst for Physics & Astronomy, University Potsdam Giammichele Noemi [email protected] IRAP, CNRS, Université Toulouse III Grinalds Nathan [email protected] High Point University Hämmerich Steven [email protected] Dr. Karl Remeis-Observatory Name Mail Institution Han Zhanwen [email protected] Yunnan Observatories, Chinese Academy of Sciences Heber Ulrich [email protected] Universität Erlangen-Nürnberg Hermes JJ [email protected] Boston University Hui-Bon-Hoa Alain [email protected] IRAP, CNRS, Université Toulouse III Jeffery Simon [email protected] Armagh Observatory and Planetarium Kilkenny David [email protected] University of the Western Cape Kupfer Thomas [email protected] Kavli Institute for Theoretical Physics La Palombara Nicola [email protected] INAF Landstorfer Alexander [email protected] University of Tübingen Latour Marilyn [email protected] University of Göttingen Li Yan [email protected] Yunnan Observatories, CAS Liu Dongdong [email protected] Yunnan Observatories, CAS Lynas-Gray Anthony E. [email protected] University College London Meng Xiangcun [email protected] Yunnan Observatories, CAS Mereghetti Sandro [email protected] INAF Miller Bertolami Marcelo [email protected] Inst. de Astrofisica de La Plata - UNLP/CONICET Molina Francisco [email protected] Valencian International University Nemeth Peter [email protected] Astronomical Institute of the Czech Republic Ostensen Roy [email protected] Norway Ostrowski Jakub [email protected] Pedagogical University of Cracow Pawar Tilaksingh [email protected] Inst. for Physics and Astronomy, Univ. of Potsdam Name Mail Institution Pelisoli Ingrid [email protected] University of Potsdam Preece Holly [email protected] Univ of Cambridge & Armagh Obs & Planetarium Randall Suzanna [email protected] ESO Rauch Thomas [email protected] Eberhard Karls University Tübingen Reindl Nicole [email protected] Universität Potsdam Sahoo Sumanta [email protected] Pedagogical University of Kraków Sanjayan Sachu [email protected] Pedagogical University of Krakow Schaffenroth Veronika [email protected] Institute for Physics & Astronomy, Univ. Potsdam Schneider David [email protected] Dr. Remeis-Sternwarte &ECAP, Univ Erlangen-Nürnberg Schwab Josiah [email protected] UC Santa Cruz Soomandar Somaye [email protected] IRAP, CNRS, Université Toulouse III Telting John [email protected] Nordic Optical Telescope Tomomi Otani [email protected] Embry-Riddle Aeronautical University Uzundag Murat [email protected] Universidad de Valparaiso Van Grootel Valerie [email protected] Université de Liège Vos Joris [email protected] Institut für Physik und Astronomie Vuckovic Maja [email protected] Instituto de Física y Astronomía, Univ. de Valparaíso Wu You [email protected] Yunnan Observatories, Chinese Academy of Sciences Zong Weikai [email protected] Beijing Normal University 9th Meeting on Hot Subdwarfs and Related Objects 23-28 Jun 2019 Hendaye France Table of contents Session 1 : Physiognomy of binary systems with hot subdwarfs or related objects 5 A Radial Velocity Survey of Candidate Variable Hot Subdwarfs from Gaia DR2 { Nathan Grinalds . 6 New Variable Hot Subdwarfs from the Evryscope { Brad Barlow ....................... 8 Short period hot subdwarf variables { Thomas Kupfer ............................. 10 Orbital and atmospheric parameters of two long period O-type hot subdwarf binaries { Francisco Molina 12 Modeling wide hot subdwarf binaries with MESA { Joris Vos ......................... 14 Hot subdwarfs with cool companions { Veronika Schaffenroth ......................... 16 Photometric variability of binary hot subdwarf stars: from the ground to TESS { Ingrid Pelisoli . 18 Variability in the light curves of Hot Subdwarfs { Tilaksingh Pawar ..................... 20 The X-ray emission of the compact He-poor sdO star Feige 34 { Nicola La Palombara . 22 WD+He star systems and the formation of accretion-induced collapse events { Dongdong Liu . 24 Recent progress in our understanding of Hen 2-428 { Nicole Reindl ...................... 26 Session 2.1 : Hot subdwarf properties from binary studies 29 NY Vir System Revisited in the Light of New Data { Ekrem Esmer ..................... 30 HW Vir: I'll be back! { Roy Østensen ...................................... 32 The pulsating sdB+dM binary 2M1938+4603 revisited combining asteroseismology and eclipse timing { Somaye Soomandar ................................................. 34 The Romer delay in HW Vir type binaries { Andrzej Baran .......................... 36 Session 2.2 : Hot subdwarf properties from atmospheric studies 39 The 3He anomaly and atmospheric helium stratification of sdB and BHB stars { Ulrich Heber . 40 1 Fundamental Parameters of Hot Subdwarf Stars from Gaia Astrometry { David Schneider . 42 The chemical composition of heavy-metal hot subdwarfs: HZ44 and HD127493 { Matti Dorsch . 44 Feige 46: a second pulsating intermediate He-sdOB and heavy-metal star ? { Marilyn Latour . 46 The SALT survey of chemically peculiar subdwarfs { Simon Jeffery ...................... 48 TheoSSA: Synthetic Spectra of the Geier Grid available on Demand { Thomas Rauch . 50 Non-local Thermodynamic Equilibrium Model-Atmosphere Spectra of sdOB stars on Demand { T. Rauch 52 NLTE spectral analysis of the intermediate helium-rich sdB CPD-20◦1123 { Thomas Rauch . 54 Session 2.3 : Hot subdwarf properties from asteroseismic studies 57 Putting sdB star asteroseismology to the test with GAIA { Suzanna Randall . 58 Asteroseismic modeling of hot subdwarfs observed by TESS { Valerie Van Grootel . 60 Asteroseismology of the g-mode sdB pulsator TIC 278659026 { St´ephaneCharpinet . 62 Probing the convective cores of core-helium-burning giants using seismology { Sebastien Deheuvels . 64 Gauging convective cores in sdB stars with pulsating DA WDs { Tiara Battich . 66 Asteroseismic signatures of the helium-core flash { Tiara Battich ....................... 68 Asteroseismology of Kepler/K2 white dwarf stars { Barbara Castanheira ................... 70 Asteroseismology of Lambda Bootis stars { Benjamin Fernando ........................ 72 Session 3.1 : Hot subdwarf populations and related objects 75 Gaia's treasure chest - The quest to compile an all-sky sample of hot subdwarfs { Stephan Geier . 76 Kinematics of sdB and sdOB stars from GAIA and SDSS data { Alexander Bastian . 78 Quantitative spectral analyses of blue horizontal branch stars { Steven H¨ammerich . 80 Gaia Data Release 2 Catalogue of Extremely-low Mass White Dwarf Candidates { Ingrid Pelisoli . 82 The mystery on the origin of extreme horizontal branch stars in globular clusters { Annalisa Calamida . 84 Session 3.2 : Origin and evolution, progenies and progenitors 87 Hot Subdwarf Stars from LAMOST DR5 and Gaia DR2 { Zhanwen Han . 88 Mining the future of low-mass, core-He-burning hot subdwarfs { JJ Hermes . 90 2 Helium Stars, Heavy Metals, High Velocities and Explosions { Simon Jeffery . 92 Helium star donors to thermonuclear supernovae { Tin Long Sunny Wong . 94 Effect of L3 mass loss on formation of sdB-MS binaries { Alexey Bobrick ................... 96 Formation of hot subdwarf B stars with neutron star components { You Wu . 98 The Formation and Evolution of R Coronae Borealis Stars { Josiah Schwab . 100 Thermal Timescale Mass Transfer and the Growth of Helium White Dwarfs { Evan Bauer . 102 He-shell burning hot subdwarf B stars as candidates for blue large-amplitude pulsations { Xuefei Chen . 104 BLAPS: the Possible Surviving Companions of Type Ia Supernovae { Xiangcun Meng . 106 Session 4 : Hot subdwarfs and their pulsations 109 A Pulsation Mechanism for He-rich sdOBV stars { Marcelo Miller Bertolami . 110 Asteroseismology of Tidally Distorted sdB Stars { Holly Preece . 112 Musical Orchestra of sub dwarf B stars in NGC6791 { Sachu Sanjayan . 114 On a mode geometry in a sample of subdwarf B stars observed by TESS { Sumanta Sahoo . 116 Gravity (g) mode pulsators from the TESS mission { Murat Uzundag . 118 Kepler view on sdB pulsators: amplitude and frequency variations of oscillation modes { Weikai Zong . 120 Pulsation Timing Analysis for a Pulsating Subdwarf B star, EC