Journal
ASTROPHYSICAL JOURNAL
Volume 904, Issue 1, Pages -Publisher
IOP Publishing Ltd
DOI: 10.3847/1538-4357/abc24a
Keywords
Gamma-ray bursts; Galaxy clusters; Galaxy environments; High energy astrophysics
Categories
Funding
- Henry Luce Foundation through a Graduate Fellowship in Physics and Astronomy
- National Science Foundation [AST-1814782, AST-1909358]
- Fermi National Accelerator Laboratory
- U.S. Department of Energy [DE-AC0207CH11359]
- NOIRLab [GS-2016B-Q-28]
- U.S. National Science Foundation
- Ministry of Science and Education of Spain
- Science and Technology Facilities Council of the United Kingdom
- Higher Education Funding Council for England
- National Center for Supercomputing Applications at the University of Illinois at Urbana-Champaign
- Kavli Institute of Cosmological Physics at the University of Chicago
- Center for Cosmology and Astro-Particle Physics at The Ohio State University
- Mitchell Institute for Fundamental Physics and Astronomy at Texas AM University
- Financiadora de Estudos e Projetos
- Fundacao Carlos Chagas Filho de Amparo a Pesquisa do Estado do Rio de Janeiro
- Conselho Nacional de Desenvolvimento Cientifico e Tecnologico
- Ministerio da Ciencia, Tecnologia e Inovacao
- Deutsche Forschungsgemeinschaft
- Argonne National Laboratory
- University of California at Santa Cruz
- University of Cambridge
- Centro de Investigaciones Energeticas, Medioambientales y Tecnologicas, Madrid
- University of Chicago
- University College London
- DES-Brazil Consortium
- University of Edinburgh
- Eidgenossische Technische Hochschule (ETH) Zurich
- University of Illinois at UrbanaChampaign
- Institut de Ciencies de l'Espai (IEEC/CSIC)
- Institut de Fisica d'Altes Energies
- Lawrence Berkeley National Laboratory
- Ludwig-Maximilians Universitat Munchen and the associated Excellence Cluster Universe
- University of Michigan
- National Optical Astronomy Observatory
- University of Nottingham
- Ohio State University
- OzDES Membership Consortium
- University of Pennsylvania
- University of Portsmouth
- SLAC National Accelerator Laboratory
- Stanford University
- University of Sussex
- Texas AM University
Ask authors/readers for more resources
We present optical observations of the Swift short-duration gamma-ray burst (GRB) GRB 161104A and its host galaxy at z = 0.793 +/- 0.003. We model the multiband photometry and spectroscopy with the stellar population inference code Prospector and explore the posterior using nested sampling. We find a mass-weighted age of t(m) = 2.12(-0.21)(+0.23) Gyr, stellar mass of log(M/M-circle dot) = 10.21 +/- 0.04, metallicity of log(Z/Z(circle dot)) = 0.08(-0.06)(+0.05), dust extinction of A(V) = 0.08(-0.05)(+0.08), and low star formation rate of 9.9 x 10(-2) Me yr(-1). These properties, along with a prominent 4000 angstrom break and optical absorption lines, classify this host as an early-type, quiescent galaxy. Using Dark Energy Survey galaxy catalogs, we demonstrate that the host of GRB 161104A resides on the outskirts of a galaxy cluster at z approximate to 0.8, situated approximate to 1 Mpc from the likely brightest cluster galaxy. We also present new modeling for 20 additional short GRB hosts (approximate to 33% of which are early-type galaxies), finding population medians of log(M/M-circle dot) = 9.94(-0.98)(+0.88) and t(m) = 1.07(-0.67)(+1.98) Gyr (68% confidence). We further find that the host of GRB 161104A is more distant, less massive, and younger than the four other short GRB hosts known to be associated with galaxy clusters. Cluster short GRBs have faint afterglows, in the lower approximate to 11% (approximate to 30%) of observed X-ray (optical) luminosities. We place a lower limit on the fraction of short GRBs in galaxy clusters versus those in the field of approximate to 5%-13%, consistent with the fraction of stellar mass of approximate to 10%-20% in galaxy clusters at redshifts 0.1 <= z <= 0.8. Future studies that take advantage of wider-field and deeper cluster surveys are needed to understand the true rate of short GRBs in clusters and their effect on heavy-element enrichment in the intracluster medium.
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