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Tsevi Mazeh (Tel Aviv)
Tuesday 07 May 2024, 11:30-12:30
The recently discovered black holes in wide binaries by Gaia astrometry
- đ¤ Speaker: Tsevi Mazeh (Tel Aviv)
- đ Date & Time: Tuesday 07 May 2024, 11:30 - 12:30
- đ Venue: Hoyle Lecture Theatre + ONLINE - Details will be sent by email
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Alison Wilson
Abstract
I will discuss the recent discovery of the three black holes (BH) by Gaia astrometry, concentrating on BH3 , with a mass of 33 M_solar, which is orbited by a very metal poor giant in an orbit of 12 years. The BH in the Gaia BH3 system is more massive than any other Galactic stellar-origin BH known. The Galactic orbit of the system and its metallicity indicate that it probably belongs to the ED-2 stream, which likely originated from a globular cluster that was disrupted by the Milky Way.
Series This talk is part of the Kavli Institute for Cosmology Seminars series.
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- Hoyle Lecture Theatre + ONLINE - Details will be sent by email
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