Scientific Programme

Below you can find the schedule and scientific programme for the entire week, which can also be downloaded in PDF format here: IAUS_357_Programme.pdf

A listing of abstracts for contributed talks and posters can be downloaded in PDF format here: IAUS_357_Abstracts.pdf

Slides for the talks can be accessed here.

Sunday, October 20
17:00 Welcoming Reception and Registration (17:00-19:00)
Monday, October 21
8:00 Conference Registration (also available during Welcoming Reception)
9:00 Welcome – Scot Kleinman
9:15 Opening Intro – Martin Barstow
9:30 Ashley Ruiter (Invited Talk)

Type Ia supernova sub-classes and progenitor origin

 SN Ia Progenitors

Chair: Scot Kleinman
9:45
10:00 A. Cikota – Investigating Progenitors of Type Ia Supernovae using Spectropolarimetry
10:15 E. Bauer – Thermonuclear Supernovae and White Dwarf Pollution
10:30 Coffee Break
10:45
11:00 Carles Badenes (Invited Talk)

Binary White Dwarfs as Type Ia SN Progenitors

 SN Ia Progenitors

Chair: Scot Kleinman
11:15
11:30 Y. Zenati – The Origin of Standard Thermonuclear Supernovae from Hybrid White Dwarf Mergers
11:45 E. Wilson – Convection in Common Envelopes and the formation of Double White Dwarfs
12:00 Lunch
12:15
12:30
12:45
13:00
13:15
13:30 N. Hallakoun – Characterizing the local double white dwarf population Chair: Sandy Leggett
13:45 J.J. Hermes – Paparazzi lightning: 68 million images of white dwarfs from space
14:00 J. Barnett – Double Degenerates in the Open Cluster NGC 6633
14:15 C-H. Lee – ANTARES: a community broker to digest the LSST firehose
14:30 T. Prince – Observations of short period white dwarf systems with the Zwicky Transient Facility
14:45 S. Cheng – The Delayed Evolution of High-mass White Dwarfs: a Cooling Anomaly and Double-White-Dwarf Mergers
15:00 Discussion

Moderator – Martin Barstow
15:15
15:30 Coffee Break
15:45
16:00 Eva Villaver (Invited Talk)

Planetary Pieces: Putting All the Clues Together Using White Dwarfs

 Debris from Extrasolar Planetary Systems

Chair: Sandy Leggett
16:15
16:30 A. Doyle – Exoplanetary Oxygen Fugacities from Polluted White Dwarf Stars
16:45 M. Kissler-Patig – An HST imaging search for giant planets around the 7 white dwarfs in the Hyades cluster (H. Zinnecker)
17:00 T. Dupuy – Orbit and Dynamical Mass of a White Dwarf in a Planet-Hosting Binary System
17:15 Discussion

Moderator – Lillia Ferrario
17:30
17:45 Bonus Talk

A. Grace – Maunakea and Hawai’i Culture: Then and Now
18:00
Tuesday, October 22
9:00 Chris Manser (Invited talk)

Remnant planetary systems around white dwarfs

 Debris from Extrasolar Planetary Systems

Chair: Paula Szkody
9:15
9:30 L. Rogers – Infrared variability around planetesimal-eating white dwarfs
9:45 K. Bell – The Search for Transiting Planets and Planetesimals with the Zwicky Transient Facility
10:00 M. Kissler-Patig – Planets around white dwarfs as seen by the TESS mission
10:15 M. Coleman – White Dwarfs as Accretion disk laboratories
10:30 Coffee Break
10:45
11:00 D. Wilson – Discovery of an Irradiated Brown Dwarf Companion to a White Dwarf
11:15 J. Krzesinski – Searching for Low-mass Companions Around White Dwarfs and Subdwarfs from Kepler field.
11:30 Discussion

Moderator – Siyi Xu
11:45
12:00 Conference Photo
12:15
12:30 Lunch
12:45
13:00
13:15
13:30 Susana Landau (Invited Talk)

Variation of fundamental constants

 Fundamental Physics

Chair: JJ Hermes
13:45
14:00 D. Winget – Understanding spectra from white dwarf photospheres: benchmarking the atomic physics
14:15 X. Chen – Extremely low-mass white dwarfs in double degenerates: Formation and Significance for LISA
14.30 B. Dunlap – Learning about Line Shapes and Masses from Gaia Parallaxes
14:45 L. McNeill – Probing white dwarf structure with LISA: using gravitational waves for asteroseismology
15:00 L. Tchang-Brillet – Laboratory studies of VUV emission spectra of heavy element ions
15:15 P. Tremblay – Neutral Helium Line Profiles through the Simulation of Local Interactions in White Dwarfs
15:30 Coffee Break
15:45
16:00 Adela Kawka (Invited Talk)

The origin and properties of magnetic white dwarfs

 Fundamental Physics

Chair: JJ Hermes
16:15
16:30 F. Hardy – A New Look at Magnetic White Dwarfs
16:45 S. Kalita – Continuous gravitational wave from magnetized compact objects
17:00 K. Burdge – The shortest period eclipsing binary
17:15 P. Bera – Quasi-periodic oscillations from post-shock accretion column of strongly magnetized accreting white dwarfs
17:30 Discussion

Moderator – S. O. Kepler

17:45
Wednesday, October 23
9:00 Alejandro Córsico (Invited Talk)

White dwarf asteroseismology

 Precision Studies of White Dwarf Structure

Chair: Agnes Kim
9:15
9:30 H. Shipman – 40 Years of Pulsating White Dwarfs
9:45 F. de Geronimo – Evolution and asteroseismology of ultra-massive white dwarfs.
10:00 A. Kim – Validation of Asteroseismic fitting with the new White Dwarf Evolution Code
10:15 J. den Hartogh – Using asteroeseismically obtained core rotation rates of low and intermediate mass stars to investigate slow neutron capture nucleosynthesis
10:30 Coffee Break
10:45
11:00 P. Skody – Accreting, Pulsating WDs: Probing Heating and Rotation
11:15 Z. Vanderbosch – A Ground-Based Detection of an Outbursting DBV White Dwarf
11:30 S. Charpinet – The chemical structure of the hot pulsating DB white dwarf KIC 08626021 from asteroseismology
11:45 B. Castanheira – Asteroseismology of white dwarfs observed by Kepler and K2
12:00 Excursion
19:00 Public Talk at ‘Imiloa Astronomy Center

M. Barstow – What has space done for us?
Thursday, October 24
9:00 M. Tucker – Gone But Not Forgotten: A Decade of Archival GALEX Data Reveals a Multitude of Variable White Dwarfs
9:15 O. Vincent – Searching for ZZ Ceti white dwarfs in the Gaia survey Chair: Elizabeth Jeffery
9:30 J. Provencal – White Dwarfs and Convection
9:45 Discussion

Moderator – Barbara Castanheira-Endl
10:00
10:15
10:30 Coffee Break
10:45
11:00 Paola Marigo (Invited Talk)

What can we learn from the initial-final mass relation of white dwarfs?

 Stellar Physics and Galactic Evolution

Chair: Elizabeth Jeffery
11:15
11:30 M. Hajduk – Real time evolution of post-AGB stars
11:45 L. Löbling – (Pre)-white dwarf stars as measuring tools for yields of asymptotic giant branch nucleosynthesis
12:00 Lunch
12:15
12:30
12:45
13:00
13:15
13:30 Jordi Isern (Invited Talk)

White dwarfs as Advanced Physics laboratories: the axion case

 Stellar Physics and Galactic Evolution

Chair: Patrick Dufour
13:45
14:00 T. Oswalt – The Completeness of Gaia-Selected Samples of White Dwarfs—Are We There Yet?
14:15 K. Williams – Ensemble Evolutionary Studies of White Dwarfs
14:30 N. Lagarde – New population synthesis approach: the golden path to constrain
14:45 T. von Hippel – White Dwarfs, Gaia, and the Age of the Galactic Disk
15:00 Coffee Break
15:15
15:30 E. Jeffery – A Bayesian Analysis of White Dwarfs in Open Clusters Observed with Gaia
15:45 N. Fantin – Measuring the Star Formation of the Milky Way Using its Stellar Graveyard
16:00 S.O. Kepler – Mass distribution of white dwarfs
16:15 T. Heintz – Comparing the Total Ages of Wide Double White Dwarfs in Gaia DR2
16:30 Discussion

Moderator – Judi Provencal
16:45
17:00 Break before dinner
17:15
17:30 Leave for dinner
Friday, October 25
9:00 V. Suleimanov – Statistics of white dwarf properties in intermediate polars Chair: Atsuko Nitta
9:15 P. Muralimohan – Geometry of nova ejecta
9:30 N. Finch – What can ISM and non-photospheric highly ionised lines in WD spectra reveal about the beta CMa tunnel?
9:45 A. Bedard – The spectral evolution of hot white dwarfs
10:00 T. Rauch – Heavy-metal white dwarfs
10:15 N. Gentile Fusillo – Cool white dwarfs as standards for infrared observations
10:30 Coffee Break
10:45
11:00 S. Blouin – The Spectral Evolution of Cool White Dwarfs
11:15 P. Dufour – Origin and evolution of carbon atmosphere white dwarf stars
11:30 H. Richer – Gaia, Star Clusters and Massive White Dwarfs: Discovery of the White Dwarf That Has Everything
11:45 K. Masuda – Discovery of four white dwarfs in self-lensing binaries
12:00 Lunch
12:15
12:30
12:45
13:00
13:15
13:30 B. Kayastha – Dynamical Evolution of Globular Clusters with White Dwarfs, Neutron Stars and Black Holes using the GPU supercomputer Chair: Gerald Handler
13:45 M. Hollands – A white dwarf of spectral type DAQ
14:00 E. Cukanovaite – Calibration of the mixing length parameter for DB and DBA white dwarf based on 3D atmospheric models
14:15 T. Cunningham – From hydrogen to helium: the convectively driven spectral evolution of white dwarfs
14:30 Closing Review
14:45
15:00 Discussion

Moderator – Lillia Ferrario
15:15
15:30
15:45 Coffee Break
16:00