A Deep Targeted Search for Fast Radio Bursts from the Sites of Low-Redshift Short Gamma-Ray Bursts

Abstract

Some short gamma-ray bursts (SGRBs) are thought to be caused by the mergers of binary neutron stars which may sometimes produce massive neutron star remnants capable of producing extragalactic fast radio bursts (FRBs). We conducted a deep search for FRBs from the sites of six low-redshift SGRBs. We collected high time- and frequency-resolution data from each of the sites for 10 hours using the 2 GHz receiver of the Green Bank Telescope. Two of the SGRB sites we targeted were visible with the Arecibo Radio Telescope with which we conducted an additional 10 hours of 1.4 GHz observations for each. We searched our data for FRBs using the GPU-optimized dedispersion algorithm $\text{heimdall}$ and the machine-learning-based package $\text{FETCH}$ (Fast Extragalactic Transient Candidate Hunter). We did not discover any FRBs, but would have detected any with peak flux densities in excess of 87 mJy at the Green Bank Telescope or 21 mJy at Arecibo with a signal-to-noise ratio of at least 10. The isotropic-equivalent energy of any FRBs emitted from these sites in our bands during our observations must not have exceeded a few times $10^{38}$ erg, comparable to some of the lowest energy bursts yet seen from the first known repeating FRB 121102.

10 pages, 2 figures, submitted to AJ

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Cited by in corpus (10)

• Fast radio bursts to be detected with the Square Kilometre Array
• Luminosity-duration relations and luminosity functions of repeating and non-repeating fast radio bursts
• Initial results from a realtime FRB search with the GBT
• Multiwavelength observations of Fast Radio Bursts
• Limits on Fast Radio Burst-like Counterparts to Gamma-ray Bursts using CHIME/FRB
• Multi-wavelength and Multi-messenger Counterparts of Fast Radio Bursts
• Observing superluminous supernovae and long gamma ray bursts as potential birthplaces of repeating fast radio bursts
• Constraining Near-Simultaneous Radio Emission from Short Gamma-ray Bursts using CHIME/FRB
• A targeted search for repeating fast radio bursts associated with gamma-ray bursts
• Detectability of radio afterglows from binary neutron star mergers and implications for fast radio bursts