First Prompt Optical Observations of Nearest Fast Radio Burst new New Astromomical Method

Abstract

With the discovery of gamma ray bursts1,2, it became clear that our Universe flickers with superfast catastrophic events, sometimes lasting for a thousandths of a second. These ultra-fast transients - the peculiar one-day butterflies of the Universe - shine so brightly that they are noticed even on the other end of the Universe and, moreover, by very small telescopes. But in the radio range, the sky remained silent until the beginning of the 21st century. Only in 2007, radio astronomers analyzing archival observations of the Parkes Radio Telescope first encountered fast transients 3,4 . About a hundred such sources have already been discovered. We report the first optical observation of the closest radio burster FRB 180916.J0158+655-8 synchronously with a radio burst. In total, we obtained about 155,093 images at MASTER Global Robotic Net9*. In the course of our observations, we found a new method for detecting objects deep below the noise level. In addition, using the new method, we found the excess of photons in the FRB direction at a level of 23 m associated with the emission of the host galaxy.

AT2020hur: A Possible Optical Counterpart of FRB 180916B

“…AT2020hur is an optical transient that was first discovered on 2020 April 08 at 23:18:41.184 (MJD = 58,947.97130787) by the MASTER-Kislovodsk robotic telescope (Lipunov et al 2020). The unfiltered magnitude at the time of discovery was 18.4 mag (Vega system; Lipunov et al 2020). On 2020 April 09 at 19:07:30 (MJD = 58,948.79687500), about 0.8 days after its discovery, MASTER-Kislovodsk again reported an optical observation of AT2020hur, which was as bright as when it was first discovered (Lipunov et al 2020).…”

AT2020hur: A Possible Optical Counterpart of FRB 180916B

“…FRB 180916B is a well-localised repeating FRB with α = 01 h 58 m 00.7502 s ± 2.3 mas, δ = 65 • 43 ′ 00.3152 ′′ ± 2.3 mas (Marcote et al 2020), and AT2020hur is an optical transient with α = 01 h 58 m 00.750 s ± 1 arcsec, δ = 65 • 43 ′ 00.30 ′′ ± 1 arcsec (Lipunov et al 2020). The distance between FRB 180916B and AT2020hur is 0.0000042 deg (15 mas).…”

“…AT2020hur is an optical transient which was first discovered on 2020-04-08 at 23:18:41.184 (MJD=58947.97130787) by MASTER-Kislovodsk robotic telescope (Lipunov et al 2020). The unfiltered magnitude at the time of discovery was 18.4 mag (Vega system; Lipunov et al 2020).…”

“…AT2020hur is an optical transient which was first discovered on 2020-04-08 at 23:18:41.184 (MJD=58947.97130787) by MASTER-Kislovodsk robotic telescope (Lipunov et al 2020). The unfiltered magnitude at the time of discovery was 18.4 mag (Vega system; Lipunov et al 2020). On 2020-04-09 at 19:07:30 (MJD=58948.79687500), about 0.8 days after its discovery, MASTER-Kislovodsk again reported an optical observation of AT2020hur, which was as bright as when it was discovered (Lipunov et al 2020).…”

“…The unfiltered magnitude at the time of discovery was 18.4 mag (Vega system; Lipunov et al 2020). On 2020-04-09 at 19:07:30 (MJD=58948.79687500), about 0.8 days after its discovery, MASTER-Kislovodsk again reported an optical observation of AT2020hur, which was as bright as when it was discovered (Lipunov et al 2020).…”