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• ADN240305

Fermi-LAT gamma-ray observations of IceCube-220822A and detection of a new gamma-ray source, Fermi J1810.1+2154

  • Transient
  • Optical
  • Gamma-Ray Burst
  • Wide-Field Instrument
V. Lipunov, V. Kornilov, E. Gorbovskoy, K. Zhirkov, N. Tyurina, P. Balanutsa, A. Kuznetsov, V. Senik, D. Vlasenko, G. Antipov, D. Zimnukhov, E. Minkina, A. Chasovnikov, V. Topolev, D. Kuvshinov, D. Cheryasov, Ya. Kechin, Yu. Tselik, A. Sosnovskij (Lomonosov Moscow State University, SAI, Physics Department), R. Podesta, C. Lopez, F. Podesta, C. Francile (Observatorio Astronomico Felix Aguilar OAFA), R. Rebolo, M. Serra (The Instituto de Astrofisica de Canarias), D. Buckley (South African Astronomical Observatory), O. A. Gress, N. M. Budnev, O. Ershova (Irkutsk State University, API), L. Carrasco, J. R. Valdes, V. Chavushyan, V. M. Patino Alvarez, J. Martinez, A. R. Corella, L. H. Rodriguez (INAOE, Guillermo Haro Astrophysics Observatory), A. Tlatov, D. Dormidontov (Kislovodsk Solar Station of the Pulkovo Observatory), V. Yurkov, A. Gabovich (Blagoveschensk Educational State University)

Coordinates

RA
0h 42m 44.3s ± 0.3s
Dec
+41° 16′ 09″ ± 0.7″

Light Curve

Band
optical
T0
Apr 17, 2023, 23:09:25 UTC
T23:09:2524:12:4301:59:0102:41:2303:04:10
mag.-4.5m-6.1m-7.9m-8.8m-9.2m
lim.-12.0m-12.0m-12.0m-12.0m-12.0m
exp.180"180"180"180"180"
fltr.blankblankblankblankblank

MASTER-Tavrida robotic telescope (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) located in Russia (Lomonosov MSU, SAI Crimea astronomical station) was pointed to the Swift GRB230913.70 (trigger No 1191903, 19h 58m 46.70s, +35d 26m 01.0s, R=0.05) error box 19 sec after notice time and 102 sec after trigger time at 2023-09-13 16:45:58 UTC, with upper limit up to 15.6 mag. Observations started at twilight. The observations began at zenith distance = 18 deg. The sun altitude is -9.3 deg.

The galactic latitude b = 3 deg., longitude l = 72 deg. Real time updated cover map and OT discovered available here: https://master.sai.msu.ru/site/master2/observ.php?id=2269973

We obtain a following upper limits.

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

     113 |      MASTER-Tavrida |   C |    20 | 15.2 |        
     146 |      MASTER-Tavrida |   C |    30 | 15.5 |        
     190 |      MASTER-Tavrida |   C |    10 | 15.1 |        
     201 |      MASTER-Tavrida |   C |    10 | 15.1 |        
     222 |      MASTER-Tavrida |   C |    20 | 15.5 |        
     243 |      MASTER-Tavrida |   C |    20 | 15.5 |        
     265 |      MASTER-Tavrida |   C |    20 | 15.5 |        
     291 |      MASTER-Tavrida |   C |    30 | 15.6 |     
   
    
Filter C is a clear (unfiltred) band.

The observation and reduction will continue. The message may be cited.

External ID: TNS: AT 2024aud

Observatories

  • MASTER
    • Instrument: Wide Field
    • Observation Mode: Visible Light

References

  • ADN231122A
  • ADN220903
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