Detection of a bright burst from FRB 20220912A at 2.3 GHz with the Arecibo 12-m telescope

ATel #15734; Benetge Perera (Arecibo Observatory), Phil Perillat (Arecibo Observatory), Felix Fernandez (Arecibo Observatory), PK Manoharan (Arecibo Observatory), Anish Roshi (Arecibo Observatory), Christopher Salter (Arecibo Observatory), Allison Smith (Arecibo Observatory), Sravani Vaddi (Arecibo Observatory), Anna McGilvray (Arecibo Observatory)
on 31 Oct 2022; 16:28 UT
Credential Certification: Benetge Perera (bhakthiperera@gmail.com)

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We report the detection of a bright radio burst from the repeater FRB 20220912A (ATel #15679) with the 12-m telescope at the Arecibo Observatory in Puerto Rico. The observation was carried out at 2.3 GHz with a bandwidth of 172 MHz and a sampling time of 128 us. The coordinates used for the observation were RA (J2000) = 23h09m04.9s, Dec (J2000) = +48d42m25.4s, according to the localization constrained by DSA-110 (ATel#15716). We observed the FRB for an hour daily from 2022-10-22, and a bright burst was detected on 2022-10-27 at 21:38:55.75 UTC with a signal-to-noise ratio of 22. The dispersion measure of the burst was 220.094 pc/cm^3, which is consistent with the reported bursts, and the pulse width was ~0.83 ms, leading to a fluence of ~5.8 Jy ms. The FRB is active and bright across a broad frequency range, including the S-band frequency. Our high-frequency detection provides vital information about its spectral properties and emission characteristics.

FRB20220912A_AO12m