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Fermi GBM Observations of GRB 150101B: A Second Nearby Event with a Short Hard Spike and a Soft Tail


Burns, E and Veres, P and Connaughton, V and Racusin, J and Briggs, MS and Christensen, N and Goldstein, A and Hamburg, R and Kocevski, D and McEnery, J and Bissaldi, E and Dal Canton, T and Cleveland, WH and Gibby, MH and Hui, CM and von Kienlin, A and Mailyan, B and Paciesas, S and Roberts, OJ and Siellez, K and Stanbro, M and Wilson-Hodge, CA, Fermi GBM Observations of GRB 150101B: A Second Nearby Event with a Short Hard Spike and a Soft Tail, The Astrophysical Journal. Letters, 863, (2) Article L34. ISSN 2041-8205 (2018) [Refereed Article]

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DOI: doi:10.3847/2041-8213/aad813


In light of the joint multimessenger detection of a binary neutron star merger as the gamma-ray burst GRB 170817A and in gravitational waves as GW170817, we reanalyze the Fermi Gamma-ray Burst Monitor data of one of the closest short gamma-ray bursts (SGRBs): GRB 150101B. We find that this burst is composed of a short hard spike followed by a comparatively long soft tail. This apparent two-component nature is phenomenologically similar to that of GRB 170817A. While GRB 170817A was distinct from the previously known population of SGRBs in terms of its prompt intrinsic energetics, GRB 150101B is not. Despite these differences, GRB 150101B can be modeled as a more on-axis version of GRB 170817A. Identifying a similar signature in two of the closest SGRBs suggests that the soft tail is common, but generally undetectable in more distant events. If so, it will be possible to identify nearby SGRBs from the prompt gamma-ray emission alone, aiding the search for kilonovae.

Item Details

Item Type:Refereed Article
Keywords:gamma-ray burst, GRB, gravtiational waves, Fermi Gamma-ray Burst Monitor, binary neutron star merger
Research Division:Physical Sciences
Research Group:Astronomical sciences
Research Field:General relativity and gravitational waves
Objective Division:Expanding Knowledge
Objective Group:Expanding knowledge
Objective Field:Expanding knowledge in the physical sciences
UTAS Author:Siellez, K (Dr Karelle Siellez)
ID Code:151951
Year Published:2018
Web of Science® Times Cited:16
Deposited By:Physics
Deposited On:2022-08-09
Last Modified:2022-08-09

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