Astrophysics > High Energy Astrophysical Phenomena
[Submitted on 5 Jun 2016 (v1), last revised 7 Jun 2016 (this version, v2)]
Title:Circular polarizations of gravitational waves from core-collapse supernovae: a clear indication of rapid rotation
View PDFAbstract:We propose to employ the circular polarization of gravitational waves emitted by core-collapse supernovae as an unequivocal indication of rapid rotation deep in their cores. It has been demonstrated by three dimensional simulations that non-axisymmetric accretion flows may develop spontaneously via hydrodynamical instabilities in the post-bounce cores. It is not surprising then that the gravitational waves emitted by such fluid motions are circularly polarized. We show in this letter that a network of the second generation detectors of gravitational waves worldwide may be able to detect such polarizations up to the opposite side of Galaxy as long as the rotation period is shorter than a few seconds prior to collapse.
Submission history
From: Takami Kuroda [view email][v1] Sun, 5 Jun 2016 14:49:50 UTC (277 KB)
[v2] Tue, 7 Jun 2016 06:16:26 UTC (277 KB)
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