Search for high energy $gamma$-rays from the direction of the candidate electromagnetic counterpart to the binary black hole merger gravitational-wave event S190521g. (arXiv:2007.03086v1 [astro-ph.HE])
<a href="http://arxiv.org/find/astro-ph/1/au:+Podlesnyi_E/0/1/0/all/0/1">Egor Podlesnyi</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Dzhatdoev_T/0/1/0/all/0/1">Timur Dzhatdoev</a>
The gravitational-wave event S190521g — a likely binary black hole merger in
the accretion disk of an active galactic nucleus — was accompanied by an
optical counterpart. Such dense environments around luminous energy release
regions are favourable for high energy $gamma$-ray production. We report on a
search for high energy $gamma$-rays from the direction of the candidate
electromagnetic counterpart to the S190521g event using publicly-available data
of the Fermi-LAT space $gamma$-ray telescope. No significant signal was found.
We present upper limits on the spectral energy distribution of the source in
the 100 MeV — 300 GeV energy range. We discuss the importance of studying
S190521g-like transients in the context of cosmic ray acceleration,
$gamma$-ray and neutrino production in such sources.
The gravitational-wave event S190521g — a likely binary black hole merger in
the accretion disk of an active galactic nucleus — was accompanied by an
optical counterpart. Such dense environments around luminous energy release
regions are favourable for high energy $gamma$-ray production. We report on a
search for high energy $gamma$-rays from the direction of the candidate
electromagnetic counterpart to the S190521g event using publicly-available data
of the Fermi-LAT space $gamma$-ray telescope. No significant signal was found.
We present upper limits on the spectral energy distribution of the source in
the 100 MeV — 300 GeV energy range. We discuss the importance of studying
S190521g-like transients in the context of cosmic ray acceleration,
$gamma$-ray and neutrino production in such sources.
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