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DECam-GROWTH Search for the Faint and Distant Binary Neutron Star and Neutron Star-Black Hole Mergers in O3a

Anand, Shreya and Andreoni, Igor and Goldstein, Daniel A. and Kasliwal, Mansi M. and Ahumada, Tomás and Barnes, Jennifer and Bloom, Joshua S. and Bulla, Mattia and Cenko, S. Bradley and Cooke, Jeff and Coughlin, Michael W. and Nugent, Peter E. and Singer, Leo P. (2021) DECam-GROWTH Search for the Faint and Distant Binary Neutron Star and Neutron Star-Black Hole Mergers in O3a. Revista Mexicana de Astronomía y Astrofísica Serie de Conferencias, 53 . pp. 91-99. ISSN 1405-2059. doi:10.22201/ia.14052059p.2021.53.20.

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Synoptic searches for the optical counterpart to a binary neutron star (BNS) or neutron star-black hole (NSBH) merger can pose significant challenges towards the discovery of kilonovae and performing multi-messenger science. In this work, we describe the advantage of a global multi-telescope network towards this end, with a particular focus on the key and complementary role the Dark Energy Camera (DECam) plays in multi-facility follow-up. We describe the Global Relay of Observatories Watching Transients Happen (GROWTH) Target-of-Opportunity (ToO) Marshal, a common web application we built to ingest events, plan observations, search for transient candidates, and retrieve performance summary statistics for all of the telescopes in our network. Our infrastructure enabled us to conduct observations of two events during O3a, S190426c and S190510g. Furthermore, our analysis of deep DECam observations of S190814bv conducted by the DESGW team, and access to a variety of global follow-up facilities allowed us to place meaningful constraints on the parameters of the kilonova and the merging binary. We emphasize the importance of a global telescope network in conjunction with a power telescope like DECam in performing searches for the counterparts to gravitational-wave sources.

Item Type:Article
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URLURL TypeDescription Table of Contents Paper
Anand, Shreya0000-0003-3768-7515
Andreoni, Igor0000-0002-8977-1498
Goldstein, Daniel A.0000-0003-3461-8661
Kasliwal, Mansi M.0000-0002-5619-4938
Ahumada, Tomás0000-0002-2184-6430
Barnes, Jennifer0000-0003-3340-4784
Bloom, Joshua S.0000-0002-7777-216X
Bulla, Mattia0000-0002-8255-5127
Cenko, S. Bradley0000-0003-1673-970X
Cooke, Jeff0000-0001-5703-2108
Coughlin, Michael W.0000-0002-8262-2924
Nugent, Peter E.0000-0002-3389-0586
Singer, Leo P.0000-0001-9898-5597
Additional Information:© 2021 Instituto de Astronomía, Universidad Nacional Autónoma de México. This work was supported by the GROWTH project funded by the National Science Foundation under Grant No 1545949.
Group:Astronomy Department
Funding AgencyGrant Number
Subject Keywords:gravitational waves — methods: data analysis — stars: neutron — surveys — telescopes
Record Number:CaltechAUTHORS:20200414-074207930
Persistent URL:
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:102519
Deposited By: Tony Diaz
Deposited On:14 Apr 2020 16:17
Last Modified:08 Mar 2022 21:20

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