Speaker
Description
ANTARES and Baikal-GVD are both Cherenkov neutrino telescopes located in
the Northern Hemisphere. As a consequence, their fields of view overlap al-
lowing for a combined study of the sky. ANTARES sends alerts after a fast on-
line analysis based on energy and reconstruction direction of track-like events.
From December of 2018 up to the beginning of 2021, Baikal-GVD received 38
ANTARES alerts, and followed up a total of 32.
No prompt coincidence was found. However, a search into the Baikal-GVD cas-
cade sample showed some events falling within an angular distance of less than
5° for three of the ANTARES alerts in a time span of 48 hours. The 4.5° angular
resolution of Baikal-GVD allows for the possibility of these events to be spatially correlated, which makes them of special interest.
A dedicated offline analysis based on the full ANTARES data sample has been
started to search for additional coincident tracks and cascades at a 3σ signifi-
cance. With this contribution we present the final results on the offline analysis
of the three ANTARES alerts: limits on the astrophysical neutrino fluency as ob-
tained by this analysis are reported.
Keywords
Astroparticle Physics: Neutrinos: ANTARES: Baikal-GVD: Cherenkov Neutrino Telescope: Mediterranean Sea: Follow-up Analysis: Neutrino Fluence:
| Subcategory | Experimental Results |
|---|---|
| Collaboration | Antares |
| other Collaboration | Baikal-GVD |
