Institut für Astronomie & Astrophysik

EUROWD22: Scientific Program

Abstracts of talks and posters below are available here.

 

Talks

The individual time slots for talks are 12 minutes plus 3 minutes for discussion.
Talks marked with (V) will be given virtually.
 

Monday, August 15, 2022

09:00 Werner Welcome & Opening
    Chair: Hermes
    T1: White dwarf samples, surveys, and luminosity functions
09:15 Jordan White dwarfs in Gaia DR1, DR2, EDR3, and DR3
09:30 Barstow White dwarfs in Gaia DR3
09:45 Mander Synthetic photometry and the white dwarf luminosity function in Gaia DR3
10:00 Vani Properties of White Dwarfs in the JJ model based on Gaia EDR3
10:15 O'Brien Completing the 40 pc spectroscopic sample of Gaia white dwarfs
10:30   coffee & posters
11:15 Bagnulo A spectropolarimetric survey of white dwarfs in the local 20pc volume
11:30 Vincent A neural network-based algorithm for fast classification and analysis of large samples of white dwarf stars
11:45 Caiazzo A survey of white dwarf merger remnants with ZTF
12:00 Castanheira White Dwarfs in the HETDEX survey
12:15 Kosakowski The ELM Survey South
12:30 LOC Announcements
12:35   lunch
    Chair: Pelisoli
14:15 Cukanovaite Local stellar formation history from the 40pc white dwarf sample (V)
14:30 Lam Star Formation History – The Story As Told By The Galactic White Dwarf Luminosity Functions
14:45 Raddi White dwarfs and the Galactic chemodynamics
15:00 Zakamska A modern look at the white dwarf equation of state and at the binary white dwarf population
15:15 Parker CSPN in the HASH database - Investigations and Insights
15:30   coffee & posters
    T2: SN Ia connection
16:15 Ugalino Three-dimensional simulations of turbulently-driven deflagration-to-detonation transition in near-Chandrasekhar type Ia supernovae
16:30 Wong He Flash Due to Mass Transfer from High-entropy He WDs
16:45 Burmester AREPO White Dwarf merger simulations resulting in edge-lit detonation and run-away hypervelocity companion
17:00 Pritzkuleit Hyperrunaway hot subdwarfs from supernovae type Ia
    T3: White dwarfs with planetary systems
17:15 Cheng Planet candidates around massive white dwarfs
17:30 Wangnok Investigation of the circumbinary planet in a polar CV DP Leo
17:45   end of Monday session

Tuesday, August 16, 2022

    Chair: El-Badry

 

  T3: White dwarfs with planetary systems
09:00 Vanderbosch Discovery and Characterization of Transiting Planetary Debris Systems with Gaia and ZTF
09:15 Guidry Characterizing the Orbital Periods of Transiting Planetary Debris around White Dwarfs
09:30 Gentile Fusillo White dwarfs and gas discs: the good, the bad, and the weird
09:45 Rogers Using polluted white dwarfs to understand exoplanetary material
10:00 Elms Spectral analysis of ultra-cool white dwarfs polluted by planetary debris
10:15 Kaiser The Origin of Lithium Enhancement in Polluted White Dwarfs
10:30

 

coffee & posters
11:15 Badenas Agusti Spectroscopic Characterization of Helium-Dominated Polluted White Dwarfs with Machine Learning
11:30 Cunningham A white dwarf accreting planetary material determined from X-ray observations
11:45 Maldonado Understanding the origin of metal pollution in white dwarf atmospheres through dynamical evolution of planetary systems
12:00 Okuya Modeling of Accretion Disks Originating from Disrupted Rocky/Icy Planetary Bodies around White Dwarfs
12:15 Swan Infrared variation at dusty systems
    T4: Atmospheres: composition & evolution
12:30 Dunlap    Flux Calibration and Balmer Line Shapes
12:45   lunch
    Chair: Pala
14:15 Tremblay Improved Simulations of Stark Broadened Helium Line Profiles for DB White Dwarfs
14:30 Gamrath Systematic Calculations of oscillator strengths of intermediatly ionised trans-iron elements for the spectral analysis of hot white dwarfs
14:45 Landstorfer Super Metal-Rich Pre-White Dwarfs as High-Precision Atomic-Physics Laboratories
15:00 Wajid New Transition Probabilities for Trans-Iron Elements: Zn IV
15:15 Izquierdo Systematic uncertainties in the characterisation of He-dominated metal-polluted white dwarfs
15:30   coffee & posters
16:15 Bédard A detailed modeling of the DO-to-DA spectral evolution
16:30 Filiz Spectral analysis of hot DA- and DAO-type white dwarfs
16:45 Sahu HST/COS Ultra-Violet high-resolution spectroscopic survey of DA White Dwarfs
17:00 López-Sanjuan Spectral evolution and calcium white dwarfs in J-PLUS
17:15 Landstreet Rotation periods and surface magnetic field structures of young weak-field magnetic white dwarfs
17:30 Amorim Magnetic White Dwarfs rich in Hydrogen
17:45   end of Tuesday session

Wednesday, August 17, 2022

    Chair: Dunlap
    T4: Atmospheres: composition & evolution
09:00 Hardy Spectrophotometric analysis of hydrogen rich magnetic white dwarf stars
09:15 Moss Spectroscopic Variability of Magnetic White Dwarfs
09:30 Reindl Update on UHE white dwarfs
09:45 Walters DAHe stars have active chromospheres
10:00 Hermes Emerging thoughts on the new class of DAHe white dwarfs
10:15 Stopkowicz Prediction and assignment of spectra from strongly magnetized White Dwarf stars using high-accuracy quantum chemistry
10:30   coffee & posters
11:15 Farihi Evidence that all DQ stars are binary / merger products
11:30 Kowalski Consistent model fits to the complete spectra of cool DQ/DQp stars
11:45 Miller Massive White Dwarfs From Nearby Young Clusters

 

  T5: Pulsating and variable white dwarfs
12:00 Antunes Amaral Search for new variable Extremely-low mass white dwarf stars
12:15 Calcaferro Exploring the internal rotation of the extremely low-mass white-dwarf star GD 278 with TESS asteroseismology (V)
12:30 Boston Ensemble asteroseismology of blue-edge ZZ Cetis using THRAIN, the mighty white dwarf code (V)
12:45   lunch
    Chair: Battich
14:15 Romero    Pulsating White dwarfs with hydrogen-rich atmospheres
14:30 Sowicka GW Vir instability strip in the light of new observations of PG 1159 stars
14:45 Uzundag Pulsating hydrogen-deficient white dwarfs and pre-white dwarfs observed with TESS: Discovery of new GW Vir stars
15:00   end of Wednesday session
17:00   busses will start to our conference dinner

Thursday, August 18, 2022

    Chair: Raddi
    T5: Pulsating and variable white dwarfs
09:00 Kumar Seismology of accreting white dwarfs
    T6: Structure, stellar evolution, fundamental physics
09:15 Bauer MESA Models of WD Cooling with C/O Phase Separation
09:30 Camisassa Ultra-massive white dwarf models
09:45 Jeffery Improving Ages of Individual White Dwarfs
10:00 Battich    Structure and evolution of massive white dwarfs in general relativity
10:15 Perot Tidal deformability of crystallized white dwarfs in full general relativity
10:30   coffee & posters
11:15 Blouin Recent progress on the modelling of crystallizing white dwarfs
11:30 Ginzburg Crystallization dynamos: slow convection and fast rotation (V)
11:45 Montgomery Improving the Physics of Mixing During Phase Separation in Crystallizing White Dwarf Stars
12:00 Korčáková New Evolutionary Channel of Magnetic White Dwarfs?
12:15 Schreiber The origin and evolution of strong magnetic fields in white dwarfs
    T7: White dwarfs in binaries, cataclysmic variables
12:30 Parsons The White Dwarf Binary Pathways Survey
12:45   lunch
    Chair: Reindl
14:15 Torres A population synthesis study of the Gaia resolved white dwarf binary population
14:30 Korol Double white dwarf separation distribution: astrometric evidence from GAIA for a gap at 1 AU (V)
14:45 Hollands Measuring the initial-final mass relation using wide binaries
15:00 Barrientos Improved Constraints on the Initial-to-Final Mass Relation of White Dwarfs using Wide Binaries
15:15 Heintz Testing White Dwarf Age Estimates using Wide Double White Dwarf Binaries from Gaia EDR3
15:30   coffee & posters
16:15 Rajamuthukumar White dwarf interactions in triple star systems
16:30 Rebassa-Mansergas An old triple system with an inner brown dwarf-white dwarf binary and an outer white dwarf companion
16:45 Chickles Searching for eclipsing double white dwarfs in TESS 200s full frame images
17:00 Lagos Evidence for a bi-modal distribution of post mass transfer systems?
17:15 Brown

High-speed follow-up of eclipsing WD+dM binaries from ZTF

17:30 Caiazzo A survey of white dwarf merger remnants with ZTF
17:45   end of Thursday session

Friday, August 19, 2022

    Chair: Schreiber

 

  T7: White dwarfs in binaries, cataclysmic variables
09:00 Schaffenroth A bright, hot white dwarf with an M dwarf companion showing a large reflection effect
09:15 Hallakoun An ultra-hot irradiated likely brown dwarf orbiting a white dwarf (V)
09:30 van Roestel Uncovering the population of close white dwarf binaries using eclipses
09:45 Pala Evolution of accreting white dwarfs from HST and Gaia
10:00 Green Eclipse Timing of AM CVn Binary Stars
10:15 Munday Over 20 years of the shortest-period binary star system HM Cancri: orbital decay and MESA evolution -- AM CVn
10:30   coffee & posters
11:15 Littlefair Angular Momentum Loss in accreting WD binaries
11:30 El-Badry A ZTF survey for evolved cataclysmic variables turning into extremely low-mass white dwarfs
11:45 Muñoz Giraldo X-ray orbital modulation of a candidate period bounce cataclysmic variable
12:00 Suleimanov Hard X-ray luminosity function of Cataclysmic Variables in Gaia era
12:15 Neustroev On the determination of fundamental parameters of accreting white dwarfs
12:30 Shen Binary Interaction Dominates Mass Loss in Classical Novae
12:45   lunch
    Chair: Romero
14:15 Rawat Unveiling the nature of two intermediate polars: V902 Mon and SWIFT J0746.3-1608
14:30 Ramirez A study of TCP J2104, a highly evolved Cataclysmic Variable
14:45 Pelisoli Searching for AR Sco 2.0: are other white dwarf pulsars out there?
15:00 Poggiani Post-outburst Spectroscopic Investigation of Northern Novae (V)
15.15 Toloza The C/N ratio from FUV spectroscopy as a constraint upon the past evolution of HS0218+3229
15:30 Werner Closing
15:45   end of EUROWD22


Posters

The poster size is the German A0 format (84.1 x 118.9 cm, upright).
The poster number is the combination of topic number and poster number, e.g., T1P01.
The list of posters is available here.