物理セミナー/Physics seminar

  • 分類 物理セミナー
  • 開始 2017/11/24(金)13:30
  • 終了 2017/11/24(金)14:30
  • 会場 Room 345, Building #4, Tsukuba-campus (MCU 873)
  • 講演タイトル GW170817: a binary-neutron-star merger
  • 講演者 Koutarou Kyutoku (KEK Theory Center)
  • 言語 英語/English
  • 連絡先 hideki.miyake@kek.jp (4896)
  • ウェブサイトhttps://www2.kek.jp/physics-seminar/
  • 食堂・売店 利用予定なし/0

概要

On Aug. 17, the LIGO and Virgo collaboration decected the first gravitational-wave event associated with binary neutron star mergers, GW170817. GW170817 put a novel constraint on neutron-star equations of state. Moreover, this merger event is observed not only by gravitational-wave detectors but also by various electromagnetic instruments. The coincident gamma-ray event GRB170817A shows that binary neutron stars can drive short gamma-ray bursts. The UV/optical/IR transient AT 2017gfo suggests that the r-process elements, i.e., heavy nuclei such as the gold and platinum, are synthesized after binary-neutron-star mergers. In this talk, I wil review multi-messenger observations of this spectacular event and its implications to physics.