报告时间

2019年12月11日周三上午10:40-11:40

报告地点

东七楼427

报告人

ANDREAS REISENEGGER

报告人单位

智利天主教大学

邀请人

吴庆文 教授

报告内容

摘要

The progressive slowdown of the rotation of neutron stars leads to their contraction and thus to a chemical imbalance between the neutrons, protons, and other particles in their core. This imbalance is adjusted by beta decays that release energy into the stellar interior, keeping it warm. Hubble Space Telescope observations show far ultraviolet emission from a few very old neutron stars, which may well be due to this process. This can be used to probe the state of very dense matter, as well as the possible time-variation of Newton’s constant of gravitation.

报告人

简介

Ph.D. in Physics, California Institute of Technology, 1988 - 1993

Thesis: Hydrodynamics of neutron star interiors and laboratory superfluids Advisor: Peter Goldreich M.Sc. in Physics, Universidad de Chile, 1987 - 1988

Thesis: Statistical mechanics of a system of interacting vortex rings Advisor: Fernando Lund

B.Sc. in Physics, Universidad de Chile, 1982 - 1987

Employment History

Faculty member, Institute of Astrophysics (previously Department of Astronomy & Astrophysics), Pontificia Universidad Católica de Chile (PUC)

o Full Professor, 2009 – 2019

o Associate Professor, 2002 - 2009 o Assistant Professor, 1996 - 2002

•Visiting Scientist (sabbatical period)

o Max Planck Inst. for Astrophysics, Garching, February – July 2007

o European Southern Observatory (ESO), Santiago, August - December 2006

•Member (postdoc), Institute for Advanced Study, Princeton, Sept. 1993 – Dec. 1995

•Research Associate, California Institute of Technology, July - August 1993

参会人员

全体师生