Probing the rotation of core-collapse supernova with a concurrent analysis of gravitational waves and neutrinos

Takaaki Yokozawa, Mitsuhiro Asano, Tsubasa Kayano, Yudai Suwa, Nobuyuki Kanda, Yusuke Koshio, Mark R. Vagins

Research output: Contribution to journalArticle

14 Citations (Scopus)


The next time a core-collapse supernova (SN) explodes in our galaxy, various detectors will be ready and waiting to detect its emissions of gravitational waves (GWs) and neutrinos. Current numerical simulations have successfully introduced multi-dimensional effects to produce exploding SN models, but thus far the explosion mechanism is not well understood. In this paper, we focus on an investigation of progenitor core rotation via comparison of the start time of GW emission and that of the neutronization burst. The GW and neutrino detectors are assumed to be, respectively, the KAGRA detector and a co-located gadolinium-loaded water Cherenkov detector, either EGADS or GADZOOKS!. Our detection simulation studies show that for a nearby SN (0.2 kpc) we can confirm the lack of core rotation close to 100% of the time, and the presence of core rotation about 90% of the time. Using this approach there is also the potential to confirm rotation for considerably more distant Milky Way SN explosions.

Original languageEnglish
Article number86
JournalAstrophysical Journal
Issue number2
Publication statusPublished - Oct 1 2015



  • gravitational waves
  • neutrinos
  • stars: rotation
  • supernovae: general

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

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