Bulletin of the American Physical Society
APS April Meeting 2019
Volume 64, Number 3
Saturday–Tuesday, April 13–16, 2019; Denver, Colorado
Session R16: Compact Binary Formation Channels and Dynamics
1:30 PM–2:42 PM,
Monday, April 15, 2019
Sheraton
Room: Grand Ballroom I
Sponsoring
Units:
DAP DGRAV
Chair: Zoheyr Doctor, University of Chicago
Abstract: R16.00003 : Double Neutron-Star Formation from Supernova Natal Kicks*
1:54 PM–2:06 PM
View Presentation Abstract
Presenter:
A. Miguel Holgado
(University of Illinois at Urbana-Champaign)
Authors:
A. Miguel Holgado
(University of Illinois at Urbana-Champaign)
Paul Milton Ricker
(University of Illinois at Urbana-Champaign)
A neutron star emerging from the common-envelope phase may be paired with a helium-star companion. The helium star may eventually undergo a supernova explosion and form a double neutron-star system. Compact-binary population-synthesis codes often treat the transition from the pre-supernova to the post-supernova state as an instantaneous process. We investigate this phase transition with a more sophisticated model that accounts for the finite timescales of the supernova mass loss and natal kick. We compare how treating the finite timescales affects the final orbital characteristics of double neutron star populations with those predicted from the prescriptions often used in binary population-synthesis codes.
*A. Miguel Holgado is supported by the DOE NNSA Stewardship Science Fellowship.
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