Analysis Methods for Neutrino Follow-up Observations with MAGIC

被引：0

作者：

Fattorini, Alicia ^{[1
]}

Satalecka, K. ^{[2
]}

Bernardini, E. ^{[3
]}

Berti, A. ^{[4
,5
]}

Bolles, J. ^{[1
]}

Gliwny, P. ^{[6
]}

机构：

[1] Tech Univ Dortmund, Dortmund, Germany

[2] Deutsch Elektronen Synchrotron DESY Zeuthen, Zeuthen, Germany

[3] Univ Padua, Padua, Italy

[4] Univ Torino, Turin, Italy

[5] INFN Torino, Turin, Italy

[6] Univ Lodz, Lodz, Poland

来源：

36TH INTERNATIONAL COSMIC RAY CONFERENCE, ICRC2019 | 2021年

关键词：

D O I：

暂无

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

With the first measured correlation of an extremely high-energy neutrino event and a flaring gamma-ray source in September 2017, multimessenger astronomy has become more important than ever. The stereoscopic IACT system MAGIC, located at La Palma, Canary Islands, is involved in neutrino follow-up campaigns since 2012. The MAGIC telescopes are sensitive for gamma events with energies from the similar to 30 GeV range up to tens of TeV. When a potential astrophysical neutrino is detected by IceCube, an alert with the reconstructed coordinates is published. MAGIC, making use of an automated alert response system, performs follow-up observations in search of a correlated gamma-ray flux. The reconstructed neutrino direction is given with an uncertainty, typically around 0.2 degrees-1 degrees. As the angular resolution of MAGIC is much smaller, the analysis for discovering sources in a given region has to be modified. In case of a non detection, in order to interpret the data correctly, an information about flux upper limits in the whole IC event error region should be given. Here we present a method to produce sky maps for identifying point sources or deriving flux upper limits on the desired sky region, based on a maximum likelihood approach included in the SkyPrism software. Examples of results from MAGIC observations of IC-170922A and other IceCube alerts will be shown.

引用

页数：8

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