Dynamical mass ejection from black hole-neutron star binaries

分類理論セミナー
開始2015/03/09(月)13:00
終了2015/03/09(月)14:00
会場研究本館3階セミナールーム322
講演タイトル
講演者久徳 浩太郎 (理研)
言語英語/English
連絡先田邉 健太郎、ktanabe-AT-post.kek.jp
ウェブサイト
食堂・売店利用予定なし/0

概要

In recent years, mass ejection from compact binary coalescences has been getting a lot more attention. Neutron-rich material ejected from neutron stars during such a coalescence event are increasingly recognized as the most promising site of the rapid-process (r-process) nucleosynthesis. Mass ejection will also be the primary agent driving electromagnetic radiation from compact binary mergers, or electromagnetic counterparts to gravitational waves. Simultaneous detection of electromagnetic counterparts with gravitational waves is eagerly desired, particularly for accurate source localization. Because mass ejection from black hole-neutron star binaries are violent phenomena involving disruption of neutron stars, numerical relativity is the only reliable approach for theoretical investigation. In this talk, we present our latest results for dynamical mass ejection from the black hole-neutron star binary merger obtained by numerical-relativity simulations. We also discuss possible electromagnetic counterparts from the anisotropic dynamical ejecta from black hole-neutron star binaries.

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