[vsnet-grb-info 26972] GRB 201216C: MAGIC detection in very high energy gamma rays

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  29075
SUBJECT: GRB 201216C: MAGIC detection in very high energy gamma rays
DATE:    20/12/17 17:23:13 GMT
FROM:    Oscar Blanch at MAGIC Collaboration  <blanch at ifae.es>

O.Blanch (IFAE-BIST Barcelona), F. Longo (University and INFN Trieste), A. Berti (INFN Torino),
S. Fukami (ICRR University of Tokyo), Y. Suda (MPP Munich), S. Loporchio (University and INFN Bari), 
S. Micanovic (University of Rijeka), J. G. Green (INAF Rome), V. Pinter (IFAE-BIST), 
M. Takahashi (ICRR University of Tokyo), on behalf of the MAGIC collaboration report:

On December 16, 2020, the MAGIC telescopes observed GRB 201216C following the
trigger by Swift-BAT and Fermi-GBM (Beardmore et al., GCN 29061, Fermi/GBM team GCN 29063).
MAGIC started observations under good conditions about 57 seconds after the GRB onset.
The preliminary offline analyses show an excess above 5 sigma, compatible with the GRB position reported
by the Swift and Fermi teams. Refined off-line analyses of the data are ongoing.

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 F. Longo (francesco.longo at ts.infn.it).

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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