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Gravitational-wave EM Counterpart Korean Observatory (GECKO)

Published online by Cambridge University Press:  27 February 2023

Myungshin Im Open the ORCID record for Myungshin Im [Opens in a new window] ,
Gregory S. H. Paek Open the ORCID record for Gregory S. H. Paek [Opens in a new window] ,
Joonho Kim ,
Gu Lim  and
the GECKO Team
Myungshin Im
Affiliation:
SNU Astronomy Research Center, Astronomy Program, Dept. of Physics & Astronomy, Seoul National University, Seoul 08826, Republic of Korea email: myungshin.im@gmail.com
Gregory S. H. Paek
Affiliation:
SNU Astronomy Research Center, Astronomy Program, Dept. of Physics & Astronomy, Seoul National University, Seoul 08826, Republic of Korea email: myungshin.im@gmail.com
Joonho Kim
Affiliation:
SNU Astronomy Research Center, Astronomy Program, Dept. of Physics & Astronomy, Seoul National University, Seoul 08826, Republic of Korea email: myungshin.im@gmail.com
Gu Lim
Affiliation:
SNU Astronomy Research Center, Astronomy Program, Dept. of Physics & Astronomy, Seoul National University, Seoul 08826, Republic of Korea email: myungshin.im@gmail.com
the GECKO Team
Affiliation:
SNU Astronomy Research Center, Astronomy Program, Dept. of Physics & Astronomy, Seoul National University, Seoul 08826, Republic of Korea email: myungshin.im@gmail.com
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Abstract

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Identification of the electromagnetic-wave (EM) counterparts of gravitational-wave (GW) sources can significantly broaden the research scope of GW astronomy, by pinpointing the exact locations of GW events and their environments, and using GW sources as standard sirens for cosmology. Yet, only one GW event has been found to be associated with an EM counterpart so far. Here, we outline the challenges of identifying EM counterparts of GW events, and describe our global network of telescopes that has been used to uncover GW EM counterparts. We also introduce a new facility in construction, the 7-dimensional telescope (7DT). Our GECKO observations have demonstrated that we can cover 50 deg2 within one hour to find kilonovae at a few hundred Mpc away. Furthermore, 7DT will produce a low resolution spectral map of the GW localization area, facilitating the EM counterpart search.

Keywords

gravitational wavesblack hole physicstelescopesstars: neutrongalaxies: general
Type
Contributed Paper
Information
Proceedings of the International Astronomical Union , Volume 16 , Symposium S363: Neutron Star Astrophysics at the Crossroads: Magnetars and the Multimessenger Revolution , June 2020 , pp. 207 - 210
Creative Commons
Creative Common License - CCCreative Common License - BY
This is an Open Access article, distributed under the terms of the Creative Commons Attribution licence (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted re-use, distribution, and reproduction in any medium, provided the original work is properly cited.
Copyright
© The Author(s), 2023. Published by Cambridge University Press on behalf of International Astronomical Union

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