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Anderson, Marin M.California Institute of Technology (Caltech)
(author)
Simultaneous Search for Prompt Radio Emission Associated with the Short GRB 170112A Using the All-sky Imaging Capability of the OVRO-LWA
- Article/chapterEnglish2018
Publisher, publication year, extent ...
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2018-08-27
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American Astronomical Society,2018
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electronicrdacarrier
Numbers
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LIBRIS-ID:oai:research.chalmers.se:791749ad-d2de-480b-9dc6-fe1e19b0b1de
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https://doi.org/10.3847/1538-4357/aad2d7DOI
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https://research.chalmers.se/publication/504831URI
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Language:English
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Summary in:English
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Subject category:art swepub-publicationtype
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Subject category:ref swepub-contenttype
Notes
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We have conducted the most sensitive low-frequency (below 100 MHz) search to date for prompt, low-frequency radio emission associated with short-duration gamma-ray bursts (GRBs), using the Owens Valley Radio Observatory Long Wavelength Array (OVRO-LWA). The OVRO-LWA's nearly full-hemisphere field of view (similar to 20,000 square degrees) allows us to search for low-frequency (sub-100 MHz) counterparts for a large sample of the subset of GRB events for which prompt radio emission has been predicted. Following the detection of short GRB 170112A by Swift, we used all-sky OVRO-LWA images spanning one hour prior to and two hours following the GRB event to search for a transient source coincident with the position of GRB 170112A. We detect no transient source to within a 3 sigma flux density limit of 4.5. Jy at 13 s timescales for frequencies spanning 27-84. MHz. We place constraints on a number of models predicting prompt, low-frequency radio emission accompanying short GRBs and their potential binary neutron star merger progenitors, and place an upper limit of L-radio/L gamma less than or similar to 3.5 x 10(-6) on the fraction of energy released in the prompt radio emission, under the assumptions of negligible scattering of the radio pulse and beaming of emission along the line of sight. These observations serve as a pilot effort for a program targeting a wider sample of both short and long GRBs with the OVRO-LWA, including bursts with confirmed redshift measurements that are critical to placing constraining limits on prompt radio emission models, as well as a program for the follow-up of gravitational wave compact binary coalescence events detected by advanced LIGO and Virgo.
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Hallinan, GreggCalifornia Institute of Technology (Caltech)
(author)
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Eastwood, Michael W.California Institute of Technology (Caltech)
(author)
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Monroe, Ryan M.California Institute of Technology (Caltech)
(author)
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Vedantham, Harish K.California Institute of Technology (Caltech)
(author)
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Bourke, Stephen,1978Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)bourke
(author)
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Greenhill, Lincoln J.Harvard-Smithsonian Center for Astrophysics
(author)
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Kocz, JonathonCalifornia Institute of Technology (Caltech)
(author)
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Lazio, T. Joseph W.California Institute of Technology (Caltech)
(author)
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Price, Danny C.Swinburne University of Technology,Harvard-Smithsonian Center for Astrophysics
(author)
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Schinzel, Frank K.University of New Mexico,National Radio Astronomy Observatory
(author)
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Wang, YuankunCalifornia Institute of Technology (Caltech)
(author)
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Woody, David P.California Institute of Technology (Caltech)
(author)
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California Institute of Technology (Caltech)Chalmers tekniska högskola
(creator_code:org_t)
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In:Astrophysical Journal: American Astronomical Society864:11538-43570004-637X
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