All-Sky Search for Transient Astrophysical Neutrino Emission with 10
Years of IceCube Cascade Events
R. Abbasi,M. Ackermann,J. Adams,S. K. Agarwalla,J. A. Aguilar,M. Ahlers,J. M. Alameddine,N. M. Amin,K. Andeen,G. Anton,C. Argüelles,Y. Ashida,S. Athanasiadou,L. Ausborm,S. N. Axani,X. Bai,A. Balagopal V.,M. Baricevic,S. W. Barwick,V. Basu,R. Bay,J. J. Beatty,J. Becker Tjus,J. Beise,C. Bellenghi,C. Benning,S. BenZvi,D. Berley,E. Bernardini,D. Z. Besson,E. Blaufuss,S. Blot,F. Bontempo,J. Y. Book,C. Boscolo Meneguolo,S. Böser,O. Botner,J. Böttcher,J. Braun,B. Brinson,J. Brostean-Kaiser,L. Brusa,R. T. Burley,R. S. Busse,D. Butterfield,M. A. Campana,K. Carloni,E. G. Carnie-Bronca,S. Chattopadhyay,N. Chau,C. Chen,Z. Chen,D. Chirkin,S. Choi,B. A. Clark,A. Coleman,G. H. Collin,A. Connolly,J. M. Conrad,P. Coppin,P. Correa,D. F. Cowen,P. Dave,C. De Clercq,J. J. DeLaunay,D. Delgado,S. Deng,K. Deoskar,A. Desai,P. Desiati,K. D. de Vries,G. de Wasseige,T. DeYoung,A. Diaz,J. C. Díaz-Vélez,M. Dittmer,A. Domi,H. Dujmovic,M. A. DuVernois,T. Ehrhardt,A. Eimer,P. Eller,E. Ellinger,S. El Mentawi,D. Elsässer,R. Engel,H. Erpenbeck,J. Evans,P. A. Evenson,K. L. Fan,K. Fang,K. Farrag,A. R. Fazely,A. Fedynitch,N. Feigl,S. Fiedlschuster,C. Finley,L. Fischer,D. Fox,A. Franckowiak,P. Fürst,J. Gallagher,E. Ganster,A. Garcia,L. Gerhardt,A. Ghadimi,C. Glaser,T. Glauch,T. Glüsenkamp,J. G. Gonzalez,D. Grant,S. J. Gray,O. Gries,S. Griffin,S. Griswold,K. M. Groth,C. Günther,P. Gutjahr,C. Ha,C. Haack,A. Hallgren,R. Halliday,L. Halve,F. Halzen,H. Hamdaoui,M. Ha Minh,M. Handt,K. Hanson,J. Hardin,A. A. Harnisch,P. Hatch,A. Haungs,J. Häußler,K. Helbing,J. Hellrung,J. Hermannsgabner,L. Heuermann,N. Heyer,S. Hickford,A. Hidvegi,C. Hill,G. C. Hill,K. D. Hoffman,S. Hori,K. Hoshina,W. Hou,T. Huber,K. Hultqvist,M. Hünnefeld,R. Hussain,K. Hymon,S. In,A. Ishihara,M. Jacquart,O. Janik,M. Jansson,G. S. Japaridze,M. Jeong,M. Jin,B. J. P. Jones,N. Kamp,D. Kang,W. Kang,X. Kang,A. Kappes,D. Kappesser,L. Kardum,T. Karg,M. Karl,A. Karle,A. Katil,U. Katz,M. Kauer,J. L. Kelley,A. Khatee Zathul,A. Kheirandish,J. Kiryluk,S. R. Klein,A. Kochocki,R. Koirala,H. Kolanoski,T. Kontrimas,L. Köpke,C. Kopper,D. J. Koskinen,P. Koundal,M. Kovacevich,M. Kowalski,T. Kozynets,J. Krishnamoorthi,K. Kruiswijk,E. Krupczak,A. Kumar,E. Kun,N. Kurahashi,N. Lad,C. Lagunas Gualda,M. Lamoureux,M. J. Larson,S. Latseva,F. Lauber,J. P. Lazar,J. W. Lee,K. Leonard DeHolton,A. Leszczyńska,M. Lincetto,Y. Liu,M. Liubarska,E. Lohfink,C. Love,C. J. Lozano Mariscal,L. Lu,F. Lucarelli,W. Luszczak,Y. Lyu,J. Madsen,E. Magnus,K. B. M. Mahn,Y. Makino,E. Manao,S. Mancina,W. Marie Sainte,I. C. Mariş,S. Marka,Z. Marka,M. Marsee,I. Martinez-Soler,R. Maruyama,F. Mayhew,T. McElroy,F. McNally,J. V. Mead,K. Meagher,S. Mechbal,A. Medina,M. Meier,Y. Merckx,L. Merten,J. Micallef,J. Mitchell,T. Montaruli,R. W. Moore,Y. Morii,R. Morse,M. Moulai,T. Mukherjee,R. Naab,R. Nagai,M. Nakos,U. Naumann,J. Necker,A. Negi,M. Neumann,H. Niederhausen,M. U. Nisa,A. Noell,A. Novikov,S. C. Nowicki,A. Obertacke Pollmann,V. O'Dell,B. Oeyen,A. Olivas,R. Orsoe,J. Osborn,E. O'Sullivan,H. Pandya,N. Park,G. K. Parker,E. N. Paudel,L. Paul,C. Pérez de los Heros,J. Peterson,S. Philippen,A. Pizzuto,M. Plum,A. Pontén,Y. Popovych,M. Prado Rodriguez,B. Pries,R. Procter-Murphy,G. T. Przybylski,C. Raab,J. Rack-Helleis,K. Rawlins,Z. Rechav,A. Rehman,P. Reichherzer,E. Resconi,S. Reusch,W. Rhode,B. Riedel,A. Rifaie,E. J. Roberts,S. Robertson,S. Rodan,G. Roellinghoff,M. Rongen,A. Rosted,C. Rott,T. Ruhe,L. Ruohan,D. Ryckbosch,I. Safa,J. Saffer,D. Salazar-Gallegos,P. Sampathkumar,S. E. Sanchez Herrera,A. Sandrock,M. Santander,S. Sarkar,S. Sarkar,J. Savelberg,P. Savina,M. Schaufel,H. Schieler,S. Schindler,L. Schlickmann,B. Schlüter,F. Schlüter,N. Schmeisser,T. Schmidt,J. Schneider,F. G. Schröder,L. Schumacher,S. Sclafani,D. Seckel,M. Seikh,S. Seunarine,R. Shah,S. Shefali,N. Shimizu,M. Silva,B. Skrzypek,B. Smithers,R. Snihur,J. Soedingrekso,A. Søgaard,D. Soldin,P. Soldin,G. Sommani,C. Spannfellner,G. M. Spiczak,C. Spiering,M. Stamatikos,T. Stanev,T. Stezelberger,T. Stürwald,T. Stuttard,G. W. Sullivan,I. Taboada,S. Ter-Antonyan,M. Thiesmeyer,W. G. Thompson,J. Thwaites,S. Tilav,K. Tollefson,C. Tönnis,S. Toscano,D. Tosi,A. Trettin,C. F. Tung,R. Turcotte,J. P. Twagirayezu,M. A. Unland Elorrieta,A. K. Upadhyay,K. Upshaw,A. Vaidyanathan,N. Valtonen-Mattila,J. Vandenbroucke,N. van Eijndhoven,D. Vannerom,J. van Santen,J. Vara,J. Veitch-Michaelis,M. Venugopal,M. Vereecken,S. Verpoest,D. Veske,A. Vijai,C. Walck,Y. Wang,C. Weaver,P. Weigel,A. Weindl,J. Weldert,A. Y. Wen,C. Wendt,J. Werthebach,M. Weyrauch,N. Whitehorn,C. H. Wiebusch,D. R. Williams,L. Witthaus,A. Wolf,M. Wolf,G. Wrede,X. W. Xu,J. P. Yanez,E. Yildizci,S. Yoshida,R. Young,S. Yu,T. Yuan,Z. Zhang,P. Zhelnin,P. Zilberman,M. Zimmerman
The Astrophysical Journal(2023)
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摘要
We present the results of a time-dependent search for neutrino flares in data
collected by IceCube between May 2011 and 2021. This data set contains
cascade-like events originating from charged-current electron neutrino and tau
neutrino interactions and all-flavor neutral-current interactions. IceCube's
previous all-sky searches for neutrino flares used data sets consisting of
track-like events originating from charged-current muon neutrino interactions.
The cascade data sets are statistically independent of the track data sets and
provide a new opportunity to observe the transient all-sky landscape. This
search uses the spatial, temporal, and energy information of the cascade-like
events to conduct searches for the most statistically significant neutrino
flares in the northern and southern skies. No statistically significant
time-dependent neutrino emission was observed. For the most statistically
significant location in the northern sky, p_global = 0.71, and in
the southern sky, p_global = 0.51. These results are compatible with
the background hypothesis. Assuming an E^-2.53 spectrum from the diffuse
astrophysical neutrino flux as measured with cascades, these results are used
to calculate upper limits at the 90% confidence level on neutrino flares of
varying duration and constrain the contribution of these flares to the diffuse
astrophysical neutrino flux. These constraints are independent of a specified
class of astrophysical objects and show that multiple unresolved transient
sources may contribute to the diffuse astrophysical neutrino flux.
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关键词
Neutrino astronomy,High energy astrophysics,Transient sources