Common Envelope Evolution 2019 Workshop

May 6, 2019, 9:00 AM → May 8, 2019, 5:00 PM America/New_York

5th Floor Classroom (Flatiron Institute)

The aim of the workshop is to bring together some of the best scientists in the areas of common envelope evolution, to work together on novel ways to tackle this important astrophysical problem.  Recent advances in numerics, theory, observation and modeling suggest that this is an apt time to make rapid progress on this exciting topic. 

Mon, May 6

9:00 AM → 9:30 AM Breakfast

9:30 AM → 12:10 PM Morning Sessions

9:30 AM Opening Remarks and Introductions

9:50 AM Review of Theory of CEE - Natasha Ivanova

10:30 AM Discussion

Moderator: Philipp Podsiadlowski

10:50 AM Coffee Break

11:10 AM Review of Observations - Orsola De Marco/Silvia Toonen

11:50 AM Discussion

12:10 PM → 1:10 PM Lunch

1:10 PM → 5:15 PM Afternoon Sessions

1:10 PM Contributed Talk (x3)

1. “Recombination Energy and Common Envelope Ejection” - Paul Ricker
2. “Convection in Common Envelopes” - Jason Nordhaus
3. “Envelope Structure and Application of the Drag Formalism” - Rosa Everson

1:55 PM Working Groups

Theory - 5th Floor Classroom
Computation - 6th Floor Library
Observation - 6th Floor Conference Room

3:30 PM PM Break

4:00 PM Working Groups Presentations

Working Groups presents keys questions of day 1

4:45 PM Plenary Discussion

Tue, May 7

9:00 AM → 9:30 AM Breakfast

9:30 AM → 12:30 PM Morning Sessions

9:30 AM Review of Numerical Methods - Ruediger Pakmor

10:10 AM Discussion

Moderator: Philip Chang

10:30 AM Coffee Break

11:00 AM Review of Numerical Simulations of CEE - Luke Chamandy

11:40 AM Discussion

Moderator: Eric Blackman

12:00 PM Contributed Talks

1. “Simulating Common Envelope phases with AREPO” - Fritz Ropke
2. “CEE on a Moving Mesh with MANGA” - Logan Prust

12:30 PM → 1:30 PM Lunch

1:30 PM → 4:15 PM Morning Sessions

1:30 PM Contributed Talks

1. “Shock-Powered Light Curves of Stellar Merger Events” - Brian Metzger
2. “Extragalactic stellar mergers: progenitors and remnants” - Nadejda Blagorodnova
3. “From Unstable Mass Transfer to Common Envelope Engulfment” - Morgan MacLeod

2:15 PM Working Groups

Theory - 5th Floor Classroom
Computation - 6th Floor Library
Observation - 6th Floor Conference Room

3:15 PM Coffee Break

3:45 PM Working Groups Presentations

Working Groups presents key strategies of day 2

4:15 PM → 5:30 PM Wine Reception

Wed, May 8

9:00 AM → 9:30 AM Breakfast

9:30 AM → 12:30 PM Morning Sessions

9:30 AM Alternative Views - Hagai Perets, Ondrej Pejcha

(jets, radiation, winds, dust)

10:10 AM Discussion - Hagai Perets, Ondrek Pejcha

10:30 AM Coffee Break

11:00 AM Massive Stellar Evolution in Binaries - Selma de Mink

11:40 AM Discussion

12:00 PM Contributed Talks

1. “Negative dynamical friction and "pelican" accretion” - Yuri Levin
2. “Outflows and common envelopes” - Adam Frank

12:30 PM → 1:30 PM Lunch

1:30 PM → 4:50 PM Afternoon Sessions

1:30 PM Contributed Talks

1. “Can gravitational waves help us to better understand common envelope?” - Nicola Giacobbo
2. "On the variability and dust-driven winds of AGB stars" - Zhou Chen

2:00 PM Working Groups

Theory - 5th Floor Classroom
Computation - 6th Floor Library
Observation - 6th Floor Conference Room

3:00 PM Coffee Break

3:30 PM Key Presentations of Working Group Conclusions + Discussion

4:15 PM Workshop Summary