The Baikal-GVD neutrino telescope: First results of multi-messenger studies. (arXiv:1908.05450v1 [astro-ph.HE])

The Baikal-GVD neutrino telescope: First results of multi-messenger studies. (arXiv:1908.05450v1 [astro-ph.HE])
<a href="http://arxiv.org/find/astro-ph/1/au:+Collaboration_Baikal_GVD/0/1/0/all/0/1">Baikal-GVD Collaboration</a>: <a href="http://arxiv.org/find/astro-ph/1/au:+Avrorin_A/0/1/0/all/0/1">A.D. Avrorin</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Avrorin_A/0/1/0/all/0/1">A.V. Avrorin</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Aynutdinov_V/0/1/0/all/0/1">V.M. Aynutdinov</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Bannash_R/0/1/0/all/0/1">R. Bannash</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Belolaptikov_I/0/1/0/all/0/1">I.A Belolaptikov</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Brudanin_V/0/1/0/all/0/1">V.B. Brudanin</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Budnev_N/0/1/0/all/0/1">N.M. Budnev</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Domogatsky_G/0/1/0/all/0/1">G.V. Domogatsky</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Doroshenko_A/0/1/0/all/0/1">A.A. Doroshenko</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Dvornicky_R/0/1/0/all/0/1">R. Dvornicky</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Dyachok_A/0/1/0/all/0/1">A.N. Dyachok</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Dzhilkibaev_Z/0/1/0/all/0/1">Zh.-A.M. Dzhilkibaev</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Fajth_L/0/1/0/all/0/1">L. Fajth</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Fialkovsky_S/0/1/0/all/0/1">S.V Fialkovsky</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Gafarov_A/0/1/0/all/0/1">A.R. Gafarov</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Golubkov_K/0/1/0/all/0/1">K.V. Golubkov</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Gorshkov_N/0/1/0/all/0/1">N.S. Gorshkov</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Gress_T/0/1/0/all/0/1">T.I. Gress</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Ivanov_R/0/1/0/all/0/1">R. Ivanov</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Kebkal_K/0/1/0/all/0/1">K.G. Kebkal</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Kebkal_O/0/1/0/all/0/1">O.G. Kebkal</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Khramov_E/0/1/0/all/0/1">E.V. Khramov</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Kolbin_M/0/1/0/all/0/1">M.M. Kolbin</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Konischev_K/0/1/0/all/0/1">K.V. Konischev</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Korobchenko_A/0/1/0/all/0/1">A.V. Korobchenko</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Koshechkin_A/0/1/0/all/0/1">A.P. Koshechkin</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Kozhin_A/0/1/0/all/0/1">A.V. Kozhin</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Kruglov_M/0/1/0/all/0/1">M.V. Kruglov</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Kryukov_M/0/1/0/all/0/1">M.K. Kryukov</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Kulepov_V/0/1/0/all/0/1">V.F. Kulepov</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Milenin_M/0/1/0/all/0/1">M.B. Milenin</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Mirgazov_R/0/1/0/all/0/1">R.A. Mirgazov</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Nazari_V/0/1/0/all/0/1">V. Nazari</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Panfilov_A/0/1/0/all/0/1">A.I. Panfilov</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Petukhov_D/0/1/0/all/0/1">D.P. Petukhov</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Pliskovsky_E/0/1/0/all/0/1">E.N. Pliskovsky</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Rozanov_M/0/1/0/all/0/1">M.I. Rozanov</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Rjabov_E/0/1/0/all/0/1">E.V. Rjabov</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Rushay_V/0/1/0/all/0/1">V.D. Rushay</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Safronov_G/0/1/0/all/0/1">G.B. Safronov</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Shaybonov_B/0/1/0/all/0/1">B.A. Shaybonov</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Shelepov_M/0/1/0/all/0/1">M.D. Shelepov</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Simkovic_F/0/1/0/all/0/1">F. Simkovic</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Skurikhin_A/0/1/0/all/0/1">A.V. Skurikhin</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Solovjev_A/0/1/0/all/0/1">A.G. Solovjev</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Sorokovikov_M/0/1/0/all/0/1">M.N. Sorokovikov</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Stekl_I/0/1/0/all/0/1">I. Stekl</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Suvorova_O/0/1/0/all/0/1">O.V. Suvorova</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Sushenok_E/0/1/0/all/0/1">E.O. Sushenok</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Tabolenko_V/0/1/0/all/0/1">V.A. Tabolenko</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Tarashansky_B/0/1/0/all/0/1">B.A. Tarashansky</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Yakovlev_S/0/1/0/all/0/1">S.A. Yakovlev</a>

Multi-messenger astronomy is a powerful tool to study the physical processes
driving the non-thermal Universe. A combination of observations in cosmic rays,
neutrinos, photons of all wavelengths and gravitational waves is expected. The
alert system of the Baikal-GVD detector under construction will allow for a
fast, on-line reconstruction of neutrino events recorded by the Baikal-GVD
telescope and – if predefined conditions are satisfied – for the formation of
an alert message to other communities. The preliminary results of searches for
high-energy neutrinos in coincidence with GW170817/GRB170817A using the cascade
mode of neutrino detection are discussed. Two Baikal-GVD clusters were
operating during 2017. The zenith angle of NGC 4993 at the detection time of
the GW170817 was 93.3 degrees. No events spatially coincident with GRB170817A
were found. Given the non-detection of neutrino events associated with
GW170817, upper limits on the neutrino fluence were established.

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