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- From: Kormányos Andor <andor.kormanyos AT ttk.elte.hu>
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- Subject: [Fizinfo] Ortvay kollokvium/Ortvay colloquium, 12.10.2023
- Date: Mon, 9 Oct 2023 07:01:16 +0000
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ELTE TTK Fizikai Intézet / ELTE Institute of Physics
ORTVAY KOLLOKVIUM / ORTVAY COLLOQUIUM
(https://physics.elte.hu/ortvayseminar)
Thursday, 12th October 2023, 15:00h.
Pócza Jenő Classroom, Physics Building 1.71
Pázmány Péter sétány 1/A, 1117 Budapest.
Haiman Zoltán
Columbia University
Merging black holes
The LIGO experiment has detected mergers between stellar-mass black holes,
and pulsar timing arrays on the ground have discovered stochastic background
of gravitational waves attributable to merging massive black hole binaries.
The LISA satellites, planned in space in the mid 2030s, are expected to
detect gravitational waves (GWs) from individual massive black hole binaries
at high signal-to-noise. These black hole mergers should often take place in
gas-rich galactic nuclei, and therefore should also produce concurrent
electromagnetic (EM) emission.
In this talk, I will highlight the importance of these black hole mergers for
astrophysics, cosmology, and fundamental physics, and emphasize the
additional science potential of joint GW and EM detections. I will then
discuss our recent work on the coupled dynamics of a BH binary with
circumbinary gas, including the expected characteristics of the EM emission
from such a system, the impact of circumbinary gas on the binary's orbit, and
the corresponding imprints on the GW signals. Finally, I will present BH
binary candidates we have identified based on these signatures, and discuss
the challenges and future work needed to confirm these binaries and to realize
Andor Kormányos
coordinator
- [Fizinfo] Ortvay kollokvium/Ortvay colloquium, 12.10.2023, Kormányos Andor, 10/09/2023
- <Possible follow-up(s)>
- [Fizinfo] Ortvay kollokvium/Ortvay colloquium, 12.10.2023, Kormányos Andor, 10/23/2023
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