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@ARTICLE{Acharyya:642256,
author = {Acharyya, Atreya and Adams, Colin B. and Bangale,
Priyadarshini and Bartkoske, J. T. and Benbow, Wystan and
Buckley, James H. and Chen, Yu and Christiansen, Jodi and
Chromey, Alisha and Duerr, Anne and Errando, Manel and
Godoy, Miguel E. and Falcone, Abe and Feng, Qi and Foote,
Juniper and Fortson, Lucy and Furniss, Amy and Gallagher, G.
and Hanlon, William and Hanna, David and Hervet, Olivier and
Hinrichs, Claire E. and Hoang, J. and Holder, Jamie and
Humensky, Thomas B. and Jin, Weidong and Johnson, Madalyn N.
and Kaaret, Philip and Kertzman, Mary P. and Kherlakian,
Maria and Kieda, David and Kleiner, Tobias K. and Korzoun,
Mx. Nikolas and Krennrich, Frank and Kumar, Sajan and Lang,
Mark J. and Lundy, Matthew and McGrath, Conor and Meyer,
Eileen T. and Millard, Matthew J. and Millis, John and
Mooney, Connor and Moriarty, Patrick and Mukherjee, Reshmi
and Ning, Wenmeng and O'Brien, Stephan and Ong, Rene A. and
Pohl, Martin and Pueschel, Elisa and Quinn, John and
Rabinowitz, Pazit L. and Ragan, Ken and Reynolds, Paul and
Ribeiro, Deivid and Roache, Emmet Thomas and Ryan, Jamie L.
and Sadeh, Iftach and Sadun, Alberto and Saha, Lab and
Santander, Marcos and Esmail, W. and Krieger, N. and
Krishnan, T. and Santander, M. and Sembroski, Glenn H. and
Shang, Ruo-Yu and Splettstoesser, Megan and Tak, Donggeun
and Talluri, Anjana K. and Tucci, James V. and Valverde,
Janeth and Williams, David A. and Wong, Sam L. and Woo,
Jooyun and Abbasi, R. and Ackermann, M. and Adams, J. and
Agarwalla, S. K. and Aguilar, J. A. and Ahlers, M. and
Alameddine, J. M. and Amin, N. M. and Andeen, K. and
Argüelles, C. and Ashida, Y. and Athanasiadou, S. and
Axani, S. N. and Babu, R. and Bai, X. and Balagopal V., A.
and Baricevic, M. and Barwick, S. W. and Bash, S. and Basu,
V. and Bay, R. and Beatty, J. J. and Becker Tjus, J. and
Beise, J. and Bellenghi, C. and BenZvi, S. and Berley, D.
and Bernardini, E. and Besson, D. Z. and Blaufuss, E. and
Bloom, L. and Blot, S. and Bontempo, F. and Book Motzkin, J.
Y. and Boscolo Meneguolo, C. and Böser, S. and Botner, O.
and Böttcher, J. and Braun, J. and Brinson, B. and
Brisson-Tsavoussis, Z. and Brostean-Kaiser, J. and Brusa, L.
and Burley, R. T. and Butterfield, D. and Campana, M. A. and
Caracas, I. and Carloni, K. and Carpio, J. and
Chattopadhyay, S. and Chau, N. and Chen, Z. and Chirkin, D.
and Choi, S. and Clark, B. A. and Coleman, A. and Coleman,
P. and Collin, G. H. and Connolly, A. and Conrad, J. M. and
Corley, R. and Cowen, D. F. and De Clercq, C. and DeLaunay,
J. J. and Delgado, D. and Deng, S. and Desai, A. and
Desiati, P. and de Vries, K. D. and de Wasseige, G. and
DeYoung, T. and Diaz, A. and Díaz-Vélez, J. C. and
Dierichs, P. and Dittmer, M. and Domi, A. and Draper, L. and
Dujmovic, H. and Durnford, D. and Dutta, K. and DuVernois,
M. A. and Ehrhardt, T. and Eidenschink, L. and Eimer, A. and
Eller, P. and Ellinger, E. and Mentawi, S. El and Elsässer,
D. and Engel, R. and Erpenbeck, H. and Evans, J. and
Evenson, P. A. and Fan, K. L. and Fang, K. and Farrag, K.
and Fazely, A. R. and Fedynitch, A. and Feigl, N. and
Fiedlschuster, S. and Finley, C. and Fischer, L. and Fox, D.
and Franckowiak, A. and Fukami, S. and Fürst, P. and
Gallagher, J. and Ganster, E. and Garcia, A. and Garcia, M.
and Garg, G. and Genton, E. and Gerhardt, L. and Ghadimi, A.
and Girard-Carillo, C. and Glaser, C. and Glüsenkamp, T.
and Gonzalez, J. G. and Goswami, S. and Granados, A. and
Grant, D. and Gray, S. J. and Griffin, S. and Griswold, S.
and Groth, K. M. and Guevel, D. and Günther, C. and
Gutjahr, P. and Ha, C. and Haack, C. and Hallgren, A. and
Halve, L. and Halzen, F. and Hamacher, L. and Hamdaoui, H.
and Ha Minh, M. and Handt, M. and Hanson, K. and Hardin, J.
and Harnisch, A. A. and Hatch, P. and Haungs, A. and
Häussler, J. and Helbing, K. and Hellrung, J. and
Hermannsgabner, J. and Heuermann, L. and Heyer, N. and
Hickford, S. and Hidvegi, A. and Hill, C. and Hill, G. C.
and Hmaid, R. and Hoffman, K. D. and Hori, S. and Hoshina,
K. and Hostert, M. and Hou, W. and Huber, T. and Hultqvist,
K. and Hünnefeld, M. and Hussain, R. and Hymon, K. and
Ishihara, A. and Iwakiri, W. and Jacquart, M. and Jain, S.
and Janik, O. and Jansson, M. and Jeong, M. and Jin, M. and
Jones, B. J. P. and Kamp, N. and Kang, D. and Kang, W. and
Kang, X. and Kappes, A. and Kappesser, D. and Kardum, L. and
Karg, T. and Karl, M. and Karle, A. and Katil, A. and Katz,
U. and Kauer, M. and Kelley, J. L. and Khanal, M. and Khatee
Zathul, A. and Kheirandish, A. and Kiryluk, J. and Klein, S.
R. and Kobayashi, Y. and Kochocki, A. and Koirala, R. and
Kolanoski, H. and Kontrimas, T. and Köpke, L. and Kopper,
C. and Koskinen, D. J. and Koundal, P. and Kowalski, M. and
Kozynets, T. and Krishnamoorthi, J. and Kruiswijk, K. and
Krupczak, E. and Kumar, A. and Kun, E. and Kurahashi, N. and
Lad, N. and Lagunas Gualda, C. and Lamoureux, M. and Larson,
M. J. and Lauber, F. and Lazar, J. P. and Lee, J. W. and
Leonard DeHolton, K. and Leszczyńska, A. and Liao, J. and
Lincetto, M. and Liu, Y. T. and Liubarska, M. and Love, C.
and Lu, L. and Lucarelli, F. and Luszczak, W. and Lyu, Y.
and Madsen, J. and Magnus, E. and Mahn, K. B. M. and Makino,
Y. and Manao, E. and Mancina, S. and Mand, A. and Sainte, W.
Marie and Mariş, I. C. and Marka, S. and Marka, Z. and
Marsee, M. and Martinez-Soler, I. and Maruyama, R. and
Mayhew, F. and McNally, F. and Mead, J. V. and Meagher, K.
and Mechbal, S. and Medina, A. and Meier, M. and Merckx, Y.
and Merten, L. and Mitchell, J. and Montaruli, T. and Moore,
R. W. and Morii, Y. and Morse, R. and Moulai, M. and
Mukherjee, T. and Naab, R. and Nakos, M. and Naumann, U. and
Necker, J. and Negi, A. and Neste, L. and Neumann, M. and
Niederhausen, H. and Nisa, M. U. and Noda, K. and Noell, A.
and Novikov, A. and Pollmann, A. Obertacke and O'Dell, V.
and Olivas, A. and Orsoe, R. and Osborn, J. and O'Sullivan,
E. and Palusova, V. and Pandya, H. and Park, N. and Parker,
G. K. and Parrish, V. and Paudel, E. N. and Paul, L. and
Pérez de los Heros, C. and Pernice, T. and Peterson, J. and
Pizzuto, A. and Plum, M. and Pontén, A. and Popovych, Y.
and Rodriguez, M. Prado and Pries, B. and Procter-Murphy, R.
and Przybylski, G. T. and Pyras, L. and Raab, C. and
Rack-Helleis, J. and Rad, N. and Ravn, M. and Rawlins, K.
and Rechav, Z. and Rehman, A. and Reichherzer, P. and
Resconi, E. and Reusch, S. and Rhode, W. and Riedel, B. and
Rifaie, A. and Roberts, E. J. and Robertson, S. and Rodan,
S. and Roellinghoff, G. and Rongen, M. and Rosted, A. and
Rott, C. and Ruhe, T. and Ruohan, L. and Ryckbosch, D. and
Safa, I. and Saffer, J. and Salazar-Gallegos, D. and
Sampathkumar, P. and Sandrock, A. and Sarkar, S. and
Savelberg, J. and Savina, P. and Schaile, P. and Schaufel,
M. and Schieler, H. and Schindler, S. and Schlickmann, L.
and Schlüter, B. and Schlüter, F. and Schmeisser, N. and
Schmidt, T. and Schneider, J. and Schröder, F. G. and
Schumacher, L. and Schwirn, S. and Sclafani, S. and Seckel,
D. and Seen, L. and Seikh, M. and Seo, M. and Seunarine, S.
and Sevle Myhr, P. A. and Shah, R. and Shefali, S. and
Shimizu, N. and Silva, M. and Skrzypek, B. and Smithers, B.
and Snihur, R. and Soedingrekso, J. and Søgaard, A. and
Soldin, D. and Soldin, P. and Sommani, G. and Spannfellner,
C. and Spiczak, G. M. and Spiering, C. and Stachurska, J.
and Stamatikos, M. and Stanev, T. and Stezelberger, T. and
Stürwald, T. and Stuttard, T. and Sullivan, G. W. and
Taboada, I. and Ter-Antonyan, S. and Terliuk, A. and
Thiesmeyer, M. and Thompson, W. G. and Thwaites, J. and
Tilav, S. and Tollefson, K. and Tönnis, C. and Toscano, S.
and Tosi, D. and Trettin, A. and Turcotte, R. and Unland
Elorrieta, M. A. and Upadhyay, A. K. and Upshaw, K. and
Vaidyanathan, A. and Valtonen-Mattila, N. and Vandenbroucke,
J. and van Eijndhoven, N. and Vannerom, D. and van Santen,
J. and Vara, J. and Varsi, F. and Veitch-Michaelis, J. and
Venugopal, M. and Vereecken, M. and Carrasco, S. Vergara and
Verpoest, S. and Veske, D. and Vijai, A. and Walck, C. and
Wang, A. and Weaver, C. and Weigel, P. and Weindl, A. and
Weldert, J. and Wen, A. Y. and Wendt, C. and Werthebach, J.
and Weyrauch, M. and Whitehorn, N. and Wiebusch, C. H. and
Williams, D. R. and Witthaus, L. and Wolf, M. and Wrede, G.
and Xu, X. W. and Yanez, J. P. and Yildizci, E. and Yoshida,
S. and Young, R. and Yu, F. and Yu, S. and Yuan, T. and
Zegarelli, A. and Zhang, S. and Zhang, Z. and Zhelnin, P.
and Zilberman, P. and Zimmerman, M. and Drake, Pablo and
Spira-Savett, Elizabeth and Lusen, Piatra and Mori, Kaya},
collaboration = {{VERITAS Collaboration} and {IceCube Collaboration}},
title = {{VERITAS} and {M}ultiwavelength {O}bservations of the
{B}lazar {B}3 2247+381 in {R}esponse to an {I}ce{C}ube
{N}eutrino {A}lert},
reportid = {PUBDB-2025-05437, arXiv:2502.03853},
year = {2025},
note = {26 pages, 5 figures. Accepted for publication in the
Astrophysical Journal (ApJ)},
abstract = {While the sources of the diffuse astrophysical neutrino
flux detected by the IceCube Neutrino Observatory are still
largely unknown, one of the promising methods to improve our
understanding of them is investigating the potential
temporal and spatial correlations between neutrino alerts
and the electromagnetic radiation from blazars. We report on
the multiwavelength target-of-opportunity observations of
the blazar B3 2247+381, taken in response to an IceCube
multiplet alert for a cluster of muon neutrino events
compatible with the source location between 2022 May 20 and
2022 November 10. B3 2247+381 was not detected with VERITAS
during this time period. The source was found to be in a
low-flux state in the optical, ultraviolet, and gamma-ray
bands for the time interval corresponding to the neutrino
event, but was detected in the hard X-ray band with NuSTAR
during this period. We find the multiwavelength spectral
energy distribution is described well using a simple
one-zone leptonic synchrotron self-Compton radiation model.
Moreover, assuming the neutrinos originate from hadronic
processes within the jet, the neutrino flux would be
accompanied by a photon flux from the cascade emission, and
the integrated photon flux required in such a case would
significantly exceed the total multiwavelength fluxes and
the VERITAS upper limits presented here. The lack of flaring
activity observed with VERITAS, combined with the low
multiwavelength flux levels, as well as the significance of
the neutrino excess being at a 3σ level (uncorrected for
trials), makes B3 2247+381 an unlikely source of the IceCube
multiplet. We conclude that the neutrino excess is likely a
background fluctuation.},
cin = {$Z_NA$},
ddc = {520},
cid = {$I:(DE-H253)Z_NA-20210408$},
pnm = {613 - Matter and Radiation from the Universe (POF4-613)},
pid = {G:(DE-HGF)POF4-613},
experiment = {EXP:(DE-H253)IceCube-20150101},
typ = {PUB:(DE-HGF)25},
eprint = {2502.03853},
howpublished = {arXiv:2502.03853},
archivePrefix = {arXiv},
SLACcitation = {$\%\%CITATION$ = $arXiv:2502.03853;\%\%$},
doi = {10.3204/PUBDB-2025-05437},
url = {https://bib-pubdb1.desy.de/record/642256},
}
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