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Possible confirmation of the existence of Population III stars by KAGRA

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Akinobu Miyamoto
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Akinobu Miyamoto
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02 Dec 2017, 01:12
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02 Dec 2017, 01:12
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02 Dec 2017, 01:12
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02 Dec 2017, 16:06
02 Dec 2017, 01:19
18th KAGRA face to face meeting at Tokyo Institute of Technology

On September 14, 2015, Advanced LIGO observed a gravitational wave (GW) event, GW150914. One of the possible origins of GW150914 is the Population III (Pop III) stars. We discussed a method for confirmation of the existence of the Pop III stars using likelihood analysis of mass distributions of binary black hole mergers. In typical cases, our analysis can distinguish `Pop I/II/III model' from `Pop I/II model' with 90% probability by 22 GW signals from binary black hole mergers using KAGRA.
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