Abstract

The Baikal-GVD neutrino telescope, located in Lake Baikal, Russia, is designed to detect high-energy neutrinos and perform real-time searches for astrophysical sources associated with multimessenger signals, such as gamma-ray bursts, gravitational waves, and neutrino alerts. Since 2021, the implementation of an automated system has reduced analysis delays to 3-10 minutes, enabling efficient classification of events into upward-going tracks (muon neutrinos) and high-energy cascades (all-flavor neutrinos). The telescope’s external alert follow-up system employs InfluxDB for time-series data management and Grafana for online data visualization and correlation analysis. Using ON/OFF algorithms and techniques for identifying spatial-temporal coincidences, the real-time system detects potential signals and evaluates their significance using the maximum likelihood method. In cases where no significant signal is detected, upper limits on neutrino fluxes are calculated.

Details

Title
Real-time follow-up of multimessenger alerts at the Baikal-GVD telescope
Author
Allakhverdyan, V A 1 ; Avrorin, A D 2 ; Avrorin, A V 2 ; Aynutdinov, V M 2 ; Bardačová, Z 3 ; Belolaptikov, I A 1 ; Bondarev, E A 2 ; Borina, I V 1 ; Budnev, N M 4 ; Chadymov, V A 5 ; Chepurnov, A S 6 ; Dik, V Y 7 ; Domogatsky, G V 2 ; Doroshenko, A A 2 ; Dvornický, R 3 ; Dyachok, A N 4 ; Dzhilkibaev, Zh-A M 2 ; Eckerová, E 3 ; Elzhov, T V 1 ; Fomin, V N 5 ; Gafarov, A R 4 ; Golubkov, K V 2 ; Gorshkov, N S 1 ; Gress, T I 4 ; Kebkal, K G 8 ; Kebkal, V K 8 ; Kharuk, I 2 ; Khramov, E V 1 ; Kleimenov, M I 2 ; Kolbin, M M 1 ; Koligaev, S O 9 ; Konischev, K V 2 ; Korobchenko, A V 1 ; Koshechkin, A P 2 ; Kozhin, V A 6 ; Kruglov, M V 1 ; Kulepov, V F 10 ; Kulikov, A A 4 ; Lemeshev, Y E 4 ; Mirgazov, R R 4 ; Naumov, D V 1 ; Nikolaev, A S 6 ; Perevalova, I A 4 ; Petukhov, D P 2 ; Pliskovsky, E N 1 ; Rozanov, M I 11 ; Ryabov, E V 4 ; Safronov, G B 2 ; Shaybonov, B A 1 ; Shishkin, V Y 6 ; Shirokov, E V 6 ; Šimkovic, F 3 ; Sirenko, A E 1 ; Skurikhin, A V 6 ; Solovjev, A G 1 ; Sorokovikov, M N 1 ; Štekl, I 12 ; Stromakov, A P 2 ; Suvorova, O V 2 ; Tabolenko, V A 4 ; Tretyak, V I 1 ; Ulzutuev, B B 1 ; Yablokova, Y V 1 ; Zaborov, D N 2 ; Zavyalov, S I 1 ; Zvezdov, D Y 1 

1  Joint Institute for Nuclear Research , Dubna, Russian Federation 
2  Institute for Nuclear Research , Russian Academy of Sciences, Moscow, Russian Federation 
3  Comenius University , Bratislava, Slovakia; Czech Technical University in Prague , Prague, Czech Republic 
4  Irkutsk State University , Irkutsk, Russian Federation 
5  Independent researchers 
6  Skobeltsyn Institute of Nuclear Physics MSU , Moscow, Russian Federation 
7  Joint Institute for Nuclear Research , Dubna, Russian Federation; Institute of Nuclear Physics of the Ministry of Energy of the Republic of Kazakhstan , Almaty, Republic of Kazakhstan 
8  LATENA, St. Petersburg , Russian Federation 
9  INFRAD , Dubna, Russian Federation 
10  Nizhny Novgorod State Technical University , Nizhny Novgorod, Russian Federation 
11  St. Petersburg State Marine Technical University , St. Petersburg, Russian Federation 
12  Czech Technical University in Prague , Prague, Czech Republic 
First page
012023
Publication year
2025
Publication date
Apr 2025
Publisher
IOP Publishing
ISSN
17426588
e-ISSN
17426596
Source type
Scholarly Journal
Language of publication
English
DOI
https://doi.org/10.1088/1742-6596/2984/1/012023
ProQuest document ID
3188809341
Copyright
Published under licence by IOP Publishing Ltd. This work is published under https://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.