Observation of the cosmic ray shadow of the Sun with the ANTARES neutrino telescope. (arXiv:2007.00931v2 [astro-ph.HE] UPDATED)

Observation of the cosmic ray shadow of the Sun with the ANTARES neutrino telescope. (arXiv:2007.00931v2 [astro-ph.HE] UPDATED)
<a href="http://arxiv.org/find/astro-ph/1/au:+Collaboration_ANTARES/0/1/0/all/0/1">ANTARES Collaboration</a>: <a href="http://arxiv.org/find/astro-ph/1/au:+Albert_A/0/1/0/all/0/1">A. Albert</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Andre_M/0/1/0/all/0/1">M. André</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Anghinolfi_M/0/1/0/all/0/1">M. Anghinolfi</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Anton_G/0/1/0/all/0/1">G. Anton</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Ardid_M/0/1/0/all/0/1">M. Ardid</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Aubert_J/0/1/0/all/0/1">J.-J. Aubert</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Aublin_J/0/1/0/all/0/1">J. Aublin</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Baret_B/0/1/0/all/0/1">B. Baret</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Basa_S/0/1/0/all/0/1">S. Basa</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Belhorma1_B/0/1/0/all/0/1">B. Belhorma1</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Bertin_V/0/1/0/all/0/1">V. Bertin</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Biagi_S/0/1/0/all/0/1">S. Biagi</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Bissinger_M/0/1/0/all/0/1">M. Bissinger</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Boumaaza_J/0/1/0/all/0/1">J. Boumaaza</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Bouta_M/0/1/0/all/0/1">M. Bouta</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Bouwhuis_M/0/1/0/all/0/1">M.C. Bouwhuis</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Branzas_H/0/1/0/all/0/1">H. Brânzaş</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Bruijn_R/0/1/0/all/0/1">R. Bruijn</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Brunner_J/0/1/0/all/0/1">J. Brunner</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Busto_J/0/1/0/all/0/1">J. Busto</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Capone_A/0/1/0/all/0/1">A. Capone</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Caramete_L/0/1/0/all/0/1">L. Caramete</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Carr_J/0/1/0/all/0/1">J. Carr</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Celli_S/0/1/0/all/0/1">S. Celli</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Chabab_M/0/1/0/all/0/1">M. Chabab</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Chau_T/0/1/0/all/0/1">T. N. Chau</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Moursli_R/0/1/0/all/0/1">R. Cherkaoui El Moursli</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Chiarusi_T/0/1/0/all/0/1">T. Chiarusi</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Circella_M/0/1/0/all/0/1">M. Circella</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Coleiro_A/0/1/0/all/0/1">A. Coleiro</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Colomer_Molla_M/0/1/0/all/0/1">M. Colomer-Molla</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Coniglione_R/0/1/0/all/0/1">R. Coniglione</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Coyle_P/0/1/0/all/0/1">P. Coyle</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Creusot_A/0/1/0/all/0/1">A. Creusot</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Diaz_A/0/1/0/all/0/1">A. F. Díaz</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Wasseige_G/0/1/0/all/0/1">G. de Wasseige</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Deschamps_A/0/1/0/all/0/1">A. Deschamps</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Distefano_C/0/1/0/all/0/1">C. Distefano</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Palma_I/0/1/0/all/0/1">I. Di Palma</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Domi_A/0/1/0/all/0/1">A. Domi</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Donzaud_C/0/1/0/all/0/1">C. Donzaud</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Dornic_D/0/1/0/all/0/1">D. Dornic</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Drouhin_D/0/1/0/all/0/1">D. Drouhin</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Eber_T/0/1/0/all/0/1">T. Eber</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Khayati_N/0/1/0/all/0/1">N. El Khayati</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Enzenhofer_A/0/1/0/all/0/1">A. Enzenhöfer</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Ettahiri_A/0/1/0/all/0/1">A. Ettahiri</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Fermani_P/0/1/0/all/0/1">P. Fermani</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Ferrara_G/0/1/0/all/0/1">G. Ferrara</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Filippini_F/0/1/0/all/0/1">F. Filippini</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Fusco_L/0/1/0/all/0/1">L. Fusco</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Gay_P/0/1/0/all/0/1">P. Gay</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Glotin_H/0/1/0/all/0/1">H. Glotin</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Gozzini_R/0/1/0/all/0/1">R. Gozzini</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Graf_K/0/1/0/all/0/1">K. Graf</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Guidi_C/0/1/0/all/0/1">C. Guidi</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Hallmann_S/0/1/0/all/0/1">S. Hallmann</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Haren_H/0/1/0/all/0/1">H. van Haren</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Heijboer_A/0/1/0/all/0/1">A.J. Heijboer</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Hello_Y/0/1/0/all/0/1">Y. Hello</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Hernandez_Rey_J/0/1/0/all/0/1">J.J. Hernández-Rey</a>, et al. (75 additional authors not shown)

The ANTARES detector is an undersea neutrino telescope in the Mediterranean
Sea. The search for point-like neutrino sources is one of the main goals of the
ANTARES telescope, requiring a reliable method to evaluate the detector angular
resolution and pointing accuracy. This work describes the study of the Sun
“shadow” effect with the ANTARES detector. The shadow is the deficit in the
atmospheric muon flux in the direction of the Sun caused by the absorption of
the primary cosmic rays. This analysis is based on the data collected between
2008 and 2017 by the ANTARES telescope. The observed statistical significance
of the Sun shadow detection is $3.7sigma$, with an estimated angular
resolution of $0.59^circpm0.10^circ$ for downward-going muons. The pointing
accuracy is found to be consistent with the expectations and no evidence of
systematic pointing shifts is observed.

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