Effects of Shock Instability on Spin and Kick of Proto-Neutron Star in Supernova Cores

4:05 PM, Saturday, April 12, 2008
Hyatt Regency St. Louis Riverfront (formerly Adam's Mark Hotel), Room: Promenade E and Promenade Lobby

Sponsoring Units: HEDP HEDLA
Chair: Bruce Remington, Lawrence Livermore National Laboratory

Abstract ID: BAPS.2008.APR.8HE.40

Abstract: 8HE.00040 : Effects of Shock Instability on Spin and Kick of Proto-Neutron Star in Supernova Cores

Preview Abstract Abstract

Authors:

Wakana Iwakami
(Dept. of Aerospace engineering, Tohoku Univ.)

Naofumi Ohnishi
(Dept. of Aerospace engineering, Tohoku Univ.)

Kei Kotake
(Division of Theoretical Astronomy, National Astronomical Observatory Japan)

Shoichi Yamada
(Science and Engineering, Waseda Univ.)

Keisuke Sawada
(Dept. of Aerospace engineering, Tohoku Univ.)

We have numerically studied the standing/spherical accretion shock instability (SASI) for a core-collapse supernova. The core-collapse supernova is an explosion of a massive star in the final stage of its evolution. Although this spectacular phenomenon is a key issue for astrophysics, the explosion mechanism has not been understood perfectly. Recently, SASI has widely been noticed since it may play an important role for the explosion mechanism of a core-collapse supernova. In addition to it, the latest studies suggest that SASI may also affect on rotation and kick of a pulsar which is regarded as a neutron star formed by the supernova explosion. The origin of a pulsar spin and kick has been vigorously investigated, but it is still controversial among astrophysicists. We report on the effects of SASI on spin and kick of the proto-neutron star with the results of three-dimensional simulations.

To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2008.APR.8HE.40

About APS

The American Physical Society (APS) is a non-profit membership organization working to advance the knowledge of physics.

Headquarters 1 Physics Ellipse, College Park, MD 20740-3844 (301) 209-3200
Editorial Office 1 Research Road, Ridge, NY 11961-2701 (631) 591-4000
Office of Public Affairs 529 14th St NW, Suite 1050, Washington, D.C. 20045-2001 (202) 662-8700

Bulletin of the American Physical Society

2008 APS April Meeting and HEDP/HEDLA Meeting

Volume 53, Number 5

Friday–Tuesday, April 11–15, 2008; St. Louis, Missouri

Session 8HE: HEDP/HEDLA Poster Session (4:05-6:30pm)

Abstract: 8HE.00040 : Effects of Shock Instability on Spin and Kick of Proto-Neutron Star in Supernova Cores

Authors:

Follow Us

Engage

My APS

Information for

About APS