MASTER follow-up optical observation of FRB201124A
ATel #14532; K. Zhirkov, V. Lipunov, V. Kornilov (Lomonosov MSU), R. Rebolo, M. Serra (The Instituto de Astrofisica de Canarias), R. Podesta, F. Podesta, C. Francile (OAFA), D. Buckley (SAAO), E. Gorbovskoy, P. Balanutsa, O. Gress, N. Tiurina, F. Balakin, V. Vladimirov, A. Kuznetsov, D. Vlasenko, I. Gorbunov, D. Zimnukhov, V. Senik, A. Chasovnikov, A. Pozdnyakov, V. Topolev, D. Cheryasov, V. Shumkov, T. Pogrosheva (Lomonosov Moscow State University, SAI, Physics Department), N. M. Budnev (Irkutsk State University, API), A. Tlatov, D. Dormidontov (Kislovodsk Solar Station of the Pulkovo Observatory), A. Gabovich, V. Yurkov (Blagoveshchensk State Pedagogical University)
on 8 Apr 2021; 17:20 UT
Credential Certification: Nataly Tyurina (tiurina@sai.msu.ru)
Subjects: Radio, Optical, Request for Observations, Fast Radio Burst
MASTER-Net reports on the optical observations of FRB201124A during its high activity phase (ATels #14497, #14502, #14508).
We observed the source on the 2021-03-31from 17:14:11 to 00:15:49 UTC,
on the 2021-04-01 from 17:10:21 to 23:51:42 UTC,
on the 2021-04-06 from 20:46:35 to 21:57:50 UTC and
on the 2021-04-07 from 20:54:35 to 22:02:16 UTC.
Observations were made with no filter and the exposure times of 180s and 10s.
On some of our frames we clearly see the host galaxy(ATels #14515, #14518, #14526) with the magnitude of W=19.0+/-0.2, which is consistent with our archival observation on 2010-11-07 with the magnitude of W=19.5+/-0.3.
We detect neither significant brightening of the galaxy or FRB-like bursts(1-2 bright pixels) in the localization region.
From this we derive that a 3-sigma upper limit for the persistent source is W=19.3 and for FRB-like bursts 5-sigma upper limit for fluence is 3.3 Jy ms.
MASTER will continue observations of this source.
We encourage further multiwavelength observations of the FRB201124A during its high activity phase.
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