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- W2896626341 abstract "LIGO has detected gravitational waves from massive binary black holes mergers. In order to explain the origin of such massive stellar black holes, extreme metal poor stars including first stars are focused on. However, black holes do not have the information of the metallicity. In order to check the metallicity dependence of the black hole formation, we focus on the black hole-main sequence binary (BH-MS) and the astrometry observatory $Gaia$. Using the binary population synthesis method, we find that $Gaia$ can detect $sim200$ BH-MSs whose metallicity is $Z_{odot}$ and $sim400$ BH-MSs whose metallicity is $0.1Z_{odot}$. Using the spectroscopic observation with 4-m class telescopes such as Anglo-Australian Telescope, Mayall telescope, and Kyoto university 3.8m telescope, we can check the metallicity of BH-MSs. The metallicity dependence of the black hole formation might be revealed by the astrometry and spectroscopic observation." @default.
- W2896626341 created "2018-10-26" @default.
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- W2896626341 date "2018-10-23" @default.
- W2896626341 modified "2023-09-27" @default.
- W2896626341 title "Metallicity dependence of black hole main sequence binaries detectable with Gaia" @default.
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- W2896626341 hasPublicationYear "2018" @default.
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