[vsnet-grb-info 26559] MAGIC observations of GRB 201015A: hint of very high energy gamma-ray signal

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  28659
SUBJECT: MAGIC observations of GRB 201015A: hint of very high energy gamma-ray signal
DATE:    20/10/16 16:48:37 GMT
FROM:    Oscar Blanch at MAGIC Collaboration  <blanch at ifae.es>

O.Blanch (IFAE-BIST Barcelona), M. Gaug (UAB Barcelona), K. Noda (ICRR University of Tokyo),
A. Berti (INFN Torino), E. Moretti (IFAE-BIST Barcelona), D. Miceli (University of Udine and INFN Trieste),
P. Gliwny (University of Lodz) S. Ubach (UAB Barcelona), B. Schleicher (University of Wuerzburg),
M. Cerruti (University of Barcelona) and A. Stamerra (INAF Rome) on behalf of the MAGIC collaboration
report: 

On October 15, 2020, the MAGIC telescopes observed GRB 201015A following the Swift-BAT trigger (D’Elia et al., GCN 28632).
MAGIC started observations under good conditions about 40 seconds after the initial Swift trigger, revealing a hint of signal
with significance >3 sigma in the very high energy band. Refined off-line analyses of the data are ongoing.

Further MAGIC observations on GRB 201015A are planned in the coming night. We strongly encourage follow-up
observations by other instruments at all wavelengths.

The MAGIC point of contact for this burst is O. Blanch (blanch at ifae.es). Burst Advocate for this burst is
M. Gaug (Markus.Gaug at uab.cat)

MAGIC is a system of two 17m-diameter Imaging Atmospheric Cherenkov Telescopes
located at the Observatory Roque de los Muchachos on the Canary island
La Palma, Spain, and designed to perform gamma-ray astronomy in the energy
range from 50 GeV to greater than 50 TeV.


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