2024ApJ...964....3A

Query : 2024ApJ...964....3A

2024ApJ...964....3A - Astrophys. J., 964, 3 (2024/March-3)

Searches for Neutrinos in the Direction of Radio-bright Blazars with the ANTARES Telescope.

ALBERT A., ALVES S., ANDRE M., ARDID M., ARDID S., AUBERT J.-J., AUBLIN J., BARET B., BASA S., BECHERINI Y., BELHORMA B., BENDAHMAN M., BENFENATI F., BERTIN V., BIAGI S., BISSINGER M., BOUMAAZA J., BOUTA M., BOUWHUIS M.C., BRANZAS H., BRUIJN R., BRUNNER J., BUSTO J., CAIFFI B., CALVO D., CAMPION S., CAPONE A., CARAMETE L., CARENINI F., CARR J., CARRETERO V., CELLI S., CERISY L., CHABAB M., CHERKAOUI EL MOURSLI R., CHIARUSI T., CIRCELLA M., COELHO J.A.B., COLEIRO A., CONIGLIONE R., COYLE P., CREUSOT A., CRUZ A.S.M., DIAZ A.F., DE MARTINO B., DISTEFANO C., DI PALMA I., DOMI A., DONZAUD C., DORNIC D., DROUHIN D., EBERL T., VAN EEDEN T., VAN EIJK D., EL HEDRI S., EL KHAYATI N., ENZENHOFER A., FERMANI P., FERRARA G., FILIPPINI F., FUSCO L., GAGLIARDINI S., GARCIA J., GATIUS OLIVER C., GAY P., GEISSELBRECHT N., GLOTIN H., GOZZINI R., GRACIA RUIZ R., GRAF K., GUIDI C., HAEGEL L., HALLMANN S., VAN HAREN H., HEIJBOER A.J., HELLO Y., HERNANDEZ-REY J.J., HOSSL J., HOFESTADT J., HUANG F., ILLUMINATI G., JAMES C.W., JISSE-JUNG B., DE JONG M., DE JONG P., KADLER M., KALEKIN O., KATZ U., KOUCHNER A., KOVALEV Y.A., KOVALEV Y.Y., KREYKENBOHM I., KULIKOVSKIY V., LAHMANN R., LAMOUREUX M., LAZO A., LEFEVRE D., LEONORA E., LEVI G., LE STUM S., LOPEZ-COTO D., LOUCATOS S., MADERER L., MANCZAK J., MARCELIN M., MARGIOTTA A., MARINELLI A., MARTINEZ-MORA J.A., MIGLIOZZI P., MOUSSA A., MULLER R., NAVAS S., NEZRI E., O FEARRAIGH B., OUKACHA E., PAUN A., PAVALAS G.E., PENA-MARTINEZ S., PERRIN-TERRIN M., PESTEL V., PIATTELLI P., PLAVIN A., POIRE C., POPA V., PRADIER T., PUSHKAREV A., RANDAZZO N., REAL D., RECK S., RICCOBENE G., ROMANOV A., SANCHEZ-LOSA A., SAINA A., SALESA GREUS F., SAMTLEBEN D.F.E., SANGUINETI M., SAPIENZA P., SCHNABEL J., SCHUMANN J., SCHUSSLER F., SENECA J., SPURIO M., STOLARCZYK T., TAIUTI M., TAYALATI Y., TINGAY S.J., TROITSKY S., VALLAGE B., VANNOYE G., VAN ELEWYCK V., VIOLA S., VIVOLO D., WILMS J., ZAVATARELLI S., ZEGARELLI A., ZORNOZA J.D., ZUNIGA J. (The ANTARES Collaboration), HOVATTA T., KIEHLMANN S., LIODAKIS I., PAVLIDOU V., READHEAD A.C.S. (The OVRO Collaboration)

Abstract (from CDS):

Active galaxies, especially blazars, are among the most promising extragalactic candidates for high-energy neutrino sources. To date, ANTARES searches included these objects and used GeV-TeV γ-ray flux to select blazars. Here, a statistically complete blazar sample selected by their bright radio emission is used as the target for searches of origins of neutrinos collected by the ANTARES neutrino telescope over 13 yr of operation. The hypothesis of a neutrino-blazar directional correlation is tested by pair counting and a complementary likelihood-based approach. The resulting posttrial p-value is 3.0% (2.2σ in the two-sided convention). Additionally, a time-dependent analysis is performed to search for temporal clustering of neutrino candidates as a means of detecting neutrino flares in blazars. None of the investigated sources alone reaches a significant flare detection level. However, the presence of 18 sources with a pretrial significance above 3σ indicates a p = 1.4% (2.5σ in the two-sided convention) detection of a time-variable neutrino flux. An a posteriori investigation reveals an intriguing temporal coincidence of neutrino, radio, and γ-ray flares of the J0242+1101 blazar at a p = 0.5% (2.9σ in the two-sided convention) level. Altogether, the results presented here suggest a possible connection of neutrino candidates detected by the ANTARES telescope with radio-bright blazars.

Abstract Copyright: © 2024. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Neutrino astronomy - Blazars

Simbad objects: 23

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Number of rows : 23
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 QSO B0110-668 QSO 01 12 18.9127514304 -66 34 45.190212672     18.0     ~ 31 1
2 QSO B0239+108 Bla 02 42 29.17085078 +11 01 00.7279391   20.0   19.66   ~ 140 1
3 PMN J0358-6154 Rad 03 59 01.06915 -61 54 26.0511           ~ 4 1
4 PMN J0509+0541 BLL 05 09 25.9644373872 +05 41 35.333820420 15.32 14.95 14.78 15.12   ~ 589 2
5 ICRF J052123.5-173730 BLL 05 21 23.5579026408 -17 37 30.185353524       17.77   ~ 64 1
6 QSO B0522-611 Bla 05 22 34.42547703 -61 07 57.1337711   18.46 18.05 18.05   ~ 96 1
7 QSO B0537-441 BLL 05 38 50.36155950 -44 05 08.9390233   15.77 16.48 16   ~ 924 2
8 QSO B0607-157 Bla 06 09 40.94954062 -15 42 40.6727537   18.47 18.00 19.90   ~ 330 1
9 AT20G J064118-355433 Bla 06 41 18.06335 -35 54 33.4915           ~ 12 1
10 ICRF J073222.7+015035 QSO 07 32 22.78870017 +01 50 35.3842783           ~ 20 1
11 ICRF J093317.0-081910 Bla 09 33 17.09539312 -08 19 10.8504430       19.00   ~ 31 1
12 PMN J1220-5604 Rad 12 20 26.35509 -56 04 42.5703           ~ 3 0
13 PMN J1355-6326 Rad 13 55 46.61168 -63 26 42.5760           ~ 28 1
14 QSO B1415-349 Bla 14 18 58.91692714 -35 09 42.5079840   19.25 19.5 18.2   ~ 38 1
15 ICRF J150051.8-235820 Bla 15 00 51.88923275 -23 58 20.1961552           ~ 15 1
16 PKS J1537-1259 Rad 15 37 17.55542390 -12 59 42.8558117           ~ 7 1
17 [VV2006] J160658.3+271705 Bla 16 06 58.3003858584 +27 17 05.583450264   19.49 19.22 18.11   ~ 74 2
18 QSO B1741-038 Bla 17 43 58.85613537 -03 50 04.6167326     20.40 17.98   ~ 583 1
19 NAME Galactic Center reg 17 45 39.60213 -29 00 22.0000           ~ 16269 0
20 7C 175844.60+384828.00 Bla 18 00 24.76536016 +38 48 30.6974570   17.8 17.98 17.04   ~ 161 1
21 QSO B1821-525 QSO 18 25 13.8085148136 -52 30 58.288523544   19.2       ~ 53 1
22 NVSS J182617+183152 Rad 18 26 17.71025756 +18 31 52.8920050           ~ 26 1
23 QSO J2345-1555 BLL 23 45 12.4622049264 -15 55 07.836801888   19.21   18.48   ~ 202 1

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