2025A&A...702A..38A

Query : 2025A&A...702A..38A

2025A&A...702A..38A - Astronomy and Astrophysics, volume 702A38 (2025/10-1)

Very high energy observations of the Seyfert galaxy NGC 4151 with MAGIC Indication of another gamma-ray obscured candidate neutrino source.

ABE K., ABE S., ABHIR J., ABHISHEK A., ACCIARI V.A., AGUASCA-CABOT A., AGUDO I., ANIELLO T., ANSOLDI S., ANTONELLI L.A., ARBET ENGELS A., ARCARO C., ARNESEN T.T.H., ASANO K., BABIC A., BAKSHI C., BARRES DE ALMEIDA U., BARRIO J.A., BARRIOS-JIMENEZ L., BATKOVIC I., BAXTER J., BECERRA GONZALEZ J., BEDNAREK W., BERNARDINI E., BERNETE J., BERTI A., BESENRIEDER J., BIGONGIARI C., BILAND A., BLANCH O., BONNOLI G., BOSNJAK Z., BRONZINI E., BURELLI I., CAMPOY-ORDAZ A., CAROSI A., CAROSI R., CARRETERO-CASTRILLO M., CASTRO-TIRADO A.J., CERASOLE D., CERIBELLA G., CHAI Y., CIFUENTES A., CONTRERAS J.L., CORTINA J., COVINO S., D'AMICO G., DA VELA P., DAZZI F., DE ANGELIS A., DE LOTTO B., DE MENEZES R., DELFINO M., DELGADO J., DELGADO MENDEZ C., DI PIERRO F., DI TRIA R., DI VENERE L., DINESH A., DOMINIS PRESTER D., DONINI A., DORNER D., DORO M., EISENBERGER L., ELSAESSER D., ESCUDERO J., FARINA L., FOFFANO L., FONT L., FROSE S., FUKAZAWA Y., GARCIA LOPEZ R.J., GARCZARCZYK M., GASPARYAN S., GAUG M., GIESBRECHT PAIVA J.G., GIGLIETTO N., GIORDANO F., GLIWNY P., GODINOVIC N., GRADETZKE T., GRAU R., GREEN D., GREEN J.G., GUNTHER P., HADASCH D., HAHN A., HASSAN T., HECKMANN L., HERRERA LLORENTE J., HRUPEC D., IMAZAWA R., ISRAYELYAN D., JAHANVI J., JIMENEZ MARTINEZ I., JIMENEZ QUILES J., JORMANAINEN J., KANKKUNEN S., KAYANOKI T., KONRAD J., KOUCH P.M., KUBO H., KUSHIDA J., LAINEZ M., LAMASTRA A., LINDFORS E., LOMBARDI S., LONGO F., LOPEZ-COTO R., LOPEZ-MOYA M., LOPEZ-ORAMAS A., LOPORCHIO S., LULIC L., LYARD E., MAJUMDAR P., MAKARIEV M., MALLAMACI M., MANEVA G., MANGANARO M., MANGANO S., MANNHEIM K., MARCHESI S., MARIOTTI M., MARTINEZ M., MARUSEVEC P., MAS-AGUILAR A., MAZIN D., MENCHIARI S., MENDEZ GALLEGO J., MENON S., MICELI D., MIRANDA J.M., MIRZOYAN R., MOLERO GONZALEZ M., MOLINA E., MONDAL H.A., MORALEJO A., NAKAMORI T., NANCI C., NEUSTROEV V., NICKEL L., NIEVAS ROSILLO M., NIGRO C., NIKOLIC L., NILSSON K., NISHIJIMA K., NODA K., NOZAKI S., OHTANI Y., OKUMURA A., OTERO-SANTOS J., PAIANO S., PANEQUE D., PAOLETTI R., PAREDES J.M., PERESANO M., PERSIC M., PIHET M., PIROLA G., PODOBNIK F., PRADA MORONI P.G., PRANDINI E., RHODE W., RIBO M., RICO J., SAHAKYAN N., SAITO T., SATURNI F.G., SCHMITZ K., SCHMUCKERMAIER F., SCHUBERT J.L., SCHWEIZER T., SCIACCALUGA A., SILVESTRI G., SIMONGINI A., SITAREK J., SLIUSAR V., SOBCZYNSKA D., STAMERRA A., STRISKOVIC J., STROM D., STRZYS M., SUDA Y., TAJIMA H., TAKAHASHI M., TAKEISHI R., TEMNIKOV P., TERAUCHI K., TERZIC T., TESHIMA M., TUTONE A., UBACH S., VAN SCHERPENBERG J., VAZQUEZ ACOSTA M., VENTURA S., VERNA G., VIALE I., VIGLIANO A., VIGORITO C.F., VISENTIN E., VITALE V., VOVK I., WALTER R., WERSIG F., WILL M., YAMAMOTO T., YEUNG P.K.H., NERONOV A., PERETTI E. and PERON G.

Abstract (from CDS):

Seyfert galaxies are emerging as a promising source class of high-energy neutrinos. The Seyfert galaxies NGC 4151 and NGC 1068 have respectively come up as the most promising counterparts of a 3σ and of a 4.2σ neutrino excesses detected by IceCube in the TeV energy range. Constraining the very high energy (VHE) emission associated with the neutrino signal is crucial to unveiling the mechanism and site of neutrino production. In this work, we present the first results of the VHE observations (∼29 hours) of NGC 4151 with the MAGIC telescopes. We detected no gamma-ray excess in the direction of NGC 4151, and we derived constraining upper limits on the VHE gamma-ray flux. The integral flux upper limit (at the 95% confidence level) above 200 GeV is f = 2.3 × 10–12 cm–2 s–1. Comparison of the MAGIC and IceCube measurements suggests the presence of a gamma-ray obscured accelerator, and it allowed us to constrain the gamma-ray optical depth and the size of the neutrino production site.

Abstract Copyright: © The Authors 2025

Journal keyword(s): neutrinos - galaxies: active - galaxies: individual: NGC 4151 - galaxies: Seyfert

VizieR on-line data: <Available at CDS (J/A+A/702/A38): figure1.dat table1.dat>

Simbad objects: 6

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Number of rows : 6
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 M 77 Sy2 02 42 40.7091669408 -00 00 47.859690204 9.70 9.61 8.87 10.1 9.9 ~ 4897 2
2 M 1 SNR 05 34 31.8 +22 01 03           ~ 6516 1
3 4FGL J1210.3+3928 Bz? 12 10 23.8 +39 28 47           ~ 10 0
4 RX J1210.3+3929 BLL 12 10 26.5907045256 +39 29 08.635546104   20.77 20.3 19.9   ~ 116 0
5 NGC 4151 Sy1 12 10 32.5759813872 +39 24 21.063527532   12.18 11.48     ~ 3938 2
6 RX J1211.5+3901 BLL 12 11 34.20932 +39 00 53.5362     20.0 20.4   ~ 38 0

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