2021MNRAS.501..541P -
Mon. Not. R. Astron. Soc., 501, 541-547 (2021/February-2)
A targeted search for repeating fast radio bursts associated with gamma-ray bursts.
PALLIYAGURU N.T., AGARWAL D., GOLPAYEGANI G., LYNCH R., LORIMER D.R., NGUYEN B., CORSI A. and BURKE-SPOLAOR S.
Abstract (from CDS):
The origin of fast radio bursts (FRBs) still remains a mystery, even with the increased number of discoveries in the last 3 yr. Growing evidence suggests that some FRBs may originate from magnetars. Large, single-dish telescopes such as Arecibo Observatory (AO) and Green Bank Telescope (GBT) have the sensitivity to detect FRB 121102-like bursts at gigaparsec distances. Here, we present searches using AO and GBT that aimed to find potential radio bursts at 11 sites of past gamma-ray bursts that show evidence for the birth of a magnetar. We also performed a search towards GW170817, which has a merger remnant whose nature remains uncertain. We place 10σ fluence upper limits of ≃0.036 Jy ms at 1.4 GHz and ≃0.063 Jy ms at 4.5 GHz for the AO data and fluence upper limits of ≃0.085 Jy ms at 1.4 GHz and ≃0.098 Jy ms at 1.9 GHz for the GBT data, for a maximum pulse width of ≃42 ms. The AO observations had sufficient sensitivity to detect any FRB of similar luminosity to the one recently detected from the Galactic magnetar SGR 1935+2154. Assuming a Schechter function for the luminosity function of FRBs, we find that our non-detections favour a steep power-law index (α <= -1.1) and a large cut-off luminosity (L0 >= 1041 erg s–1).
Abstract Copyright:
© 2020 The Author(s) Published by Oxford University Press on behalf of Royal Astronomical Society
Journal keyword(s):
fast radio bursts - gamma-ray bursts - radio continuum: transients
Simbad objects:
16
Full paper
View the references in ADS
To bookmark this query, right click on this link: simbad:2021MNRAS.501..541P and select 'bookmark this link' or equivalent in the popup menu