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1. External Inverse-Compton Emission Associated with Extended and Plateau Emission of Short Gamma-Ray Bursts: Application to GRB 160821B

   https://doi.org/10.3847/2041-8213/abe0b0  

   Zhang, B. Theodore ; Murase, Kohta ; Yuan, Chengchao ; Kimura, Shigeo S. ; Mészáros, Peter ( February 2021 , The Astrophysical Journal Letters)
2. Discovery of the Optical Afterglow and Host Galaxy of Short GRB 181123B at z = 1.754: Implications for Delay Time Distributions

   https://doi.org/10.3847/2041-8213/aba4b0  

   Paterson, K. ; Fong, W. ; Nugent, A. ; Escorial, A. Rouco ; Leja, J. ; Laskar, T. ; Chornock, R. ; Miller, A. A. ; Scharwächter, J. ; Cenko, S. B. ; et al ( August 2020 , The Astrophysical Journal)
3. The Short GRB 170817A: Modeling the Off-axis Emission and Implications on the Ejecta Magnetization

   https://doi.org/10.3847/1538-4357/aaf564  

   Fraija, N. ; Colle, F. De ; Veres, P. ; Dichiara, S. ; Duran, R. Barniol ; Galvan-Gamez, A. ; do E. S. Pedreira, A. C. ( January 2019 , The Astrophysical Journal)
4. A simultaneous search for prompt radio emission associated with the short GRB 170112A using the all-sky imaging capability of the OVRO-LWA

   Marin M. Anderson, Gregg Hallinan ( April 2018 , Astrophysical journal)

   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 (∼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, with our most constraining 1σ flux density limit of 650 mJy for frequencies spanning 27 MHz−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 Lradio/Lγ≲7×10−16 on the fraction of energy released in the prompt radio emission. 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 confirmedmore »redshift measurements which are critical to placing the most 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.« less
5. The First Short GRB Millimeter Afterglow: The Wide-angled Jet of the Extremely Energetic SGRB 211106A

   https://doi.org/10.3847/2041-8213/ac8421  

   Laskar, Tanmoy ; Escorial, Alicia Rouco ; Schroeder, Genevieve ; Fong, Wen-fai ; Berger, Edo ; Veres, Péter ; Bhandari, Shivani ; Rastinejad, Jillian ; Kilpatrick, Charles D. ; Tohuvavohu, Aaron ; et al ( August 2022 , The Astrophysical Journal Letters)

   We present the discovery of the first millimeter afterglow of a short-durationγ-ray burst (SGRB) and the first confirmed afterglow of an SGRB localized by the GUANO system on Swift. Our Atacama Large Millimeter/Sub-millimeter Array (ALMA) detection of SGRB 211106A establishes an origin in a faint host galaxy detected in Hubble Space Telescope imaging at 0.7 ≲z≲ 1.4. From the lack of a detectable optical afterglow, coupled with the bright millimeter counterpart, we infer a high extinction,A_V≳ 2.6 mag along the line of sight, making this one of the most highly dust-extincted SGRBs known to date. The millimeter-band light curve captures the passage of the synchrotron peak from the afterglow forward shock and reveals a jet break at$t_{\mathrm{jet}}={29.2}_{-4.0}^{+4.5}$days. For a presumed redshift ofz= 1, we infer an opening angle,θ_jet= (15.°5 ± 1.°4), and beaming-corrected kinetic energy of$\log (E_{\mathrm{K}}/\mathrm{erg})=51.8\pm 0.3$, making this one of the widest and most energetic SGRB jets known to date. Combining all published millimeter-band upper limits in conjunction with the energetics for a large sample of SGRBs, we find that energetic outflows in high-density environments are more likely to have detectable millimeter counterparts. Concerted afterglow searches with ALMA shouldmore »yield detection fractions of 24%–40% on timescales of ≳2 days at rates of ≈0.8–1.6 per year, outpacing the historical discovery rate of SGRB centimeter-band afterglows.

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