Search for Astrophysical Sources of Neutrinos Using Cascade Events in IceCube

M. G. Aartsen; M. Ackermann; J. Adams; J. A. Aguilar; M. Ahlers; M. Ahrens; I. Al Samarai; D. Altmann; K. Andeen; T. Anderson; I. Ansseau; G. Anton; C. Argüelles; J. Auffenberg; S. Axani; H. Bagherpour; X. Bai; S. W. Barwick; V. Baum; R. Bay; J. J. Beatty; J. Becker Tjus; K. H. Becker; S. Benzvi; D. Berley; E. Bernardini; D. Z. Besson; G. Binder; D. Bindig; E. Blaufuss; S. Blot; C. Bohm; M. Börner; F. Bos; D. Bose; S. Böser; O. Botner; J. Bourbeau; F. Bradascio; J. Braun; L. Brayeur; M. Brenzke; H. P. Bretz; S. Bron; A. Burgman; T. Carver; J. Casey; M. Casier; E. Cheung; D. Chirkin; A. Christov; K. Clark; L. Classen; S. Coenders; G. H. Collin; J. M. Conrad; D. F. Cowen; R. Cross; M. Day; J. P.A.M. De André; C. De Clercq; J. J. Delaunay; H. Dembinski; S. De Ridder; P. Desiati; K. D. De Vries; G. De Wasseige; M. De With; T. Deyoung; J. C. Díaz-Vélez; V. Di Lorenzo; H. Dujmovic; J. P. Dumm; M. Dunkman; B. Eberhardt; T. Ehrhardt; B. Eichmann; P. Eller; P. A. Evenson; S. Fahey; A. R. Fazely; J. Felde; K. Filimonov; C. Finley; S. Flis; A. Franckowiak; E. Friedman; T. Fuchs; T. K. Gaisser; J. Gallagher; L. Gerhardt; K. Ghorbani; W. Giang; T. Glauch; T. Glüsenkamp; A. Goldschmidt; J. G. Gonzalez; D. Grant; Z. Griffith; C. Haack; A. Hallgren; F. Halzen; K. Hanson; D. Hebecker; D. Heereman; K. Helbing; R. Hellauer; S. Hickford; J. Hignight; G. C. Hill; K. D. Hoffman; R. Hoffmann; B. Hokanson-Fasig; K. Hoshina; F. Huang; M. Huber; K. Hultqvist; S. In; A. Ishihara; E. Jacobi; G. S. Japaridze; M. Jeong; K. Jero; B. J.P. Jones; P. Kalacynski; W. Kang; A. Kappes; T. Karg; A. Karle; U. Katz; M. Kauer; A. Keivani; J. L. Kelley; A. Kheirandish; J. Kim; M. Kim; T. Kintscher; J. Kiryluk; T. Kittler; S. R. Klein; G. Kohnen; R. Koirala; H. Kolanoski; L. Köpke; C. Kopper; S. Kopper; J. P. Koschinsky; D. J. Koskinen; M. Kowalski; K. Krings; M. Kroll; G. Krückl; J. Kunnen; S. Kunwar; N. Kurahashi; T. Kuwabara; A. Kyriacou; M. Labare; J. L. Lanfranchi; M. J. Larson; F. Lauber; D. Lennarz; M. Lesiak-Bzdak; M. Leuermann; Q. R. Liu; L. Lu; J. Lünemann; W. Luszczak; J. Madsen; G. Maggi; K. B.M. Mahn; S. Mancina; R. Maruyama; K. Mase; R. Maunu; F. McNally; K. Meagher; M. Medici; M. Meier; T. Menne; G. Merino; T. Meures; S. Miarecki; J. Micallef; G. Momenté; T. Montaruli; M. Moulai; R. Nahnhauer; P. Nakarmi; U. Naumann; G. Neer; H. Niederhausen; S. C. Nowicki; D. R. Nygren; A. Obertacke Pollmann; A. Olivas; A. O'Murchadha; T. Palczewski; H. Pandya; D. V. Pankova; P. Peiffer; J. A. Pepper; C. Pérez De Los Heros; D. Pieloth; E. Pinat; M. Plum; P. B. Price; G. T. Przybylski; C. Raab; L. Rädel; M. Rameez; K. Rawlins; R. Reimann; B. Relethford; M. Relich; E. Resconi; W. Rhode; M. Richman; B. Riedel; S. Robertson; M. Rongen; C. Rott; T. Ruhe; D. Ryckbosch; D. Rysewyk; T. Sälzer; S. E. Sanchez Herrera; A. Sandrock; J. Sandroos; S. Sarkar; K. Satalecka; P. Schlunder; T. Schmidt; A. Schneider; S. Schoenen; S. Schöneberg; L. Schumacher; D. Seckel; S. Seunarine; D. Soldin; M. Song; G. M. Spiczak; C. Spiering; J. Stachurska; T. Stanev; A. Stasik; J. Stettner; A. Steuer; T. Stezelberger; R. G. Stokstad; A. Stößl; N. L. Strotjohann; G. W. Sullivan; M. Sutherland; I. Taboada; J. Tatar; F. Tenholt; S. Ter-Antonyan; A. Terliuk; G. Tešić; S. Tilav; P. A. Toale; M. N. Tobin; S. Toscano; D. Tosi; M. Tselengidou; C. F. Tung; A. Turcati; C. F. Turley; B. Ty; E. Unger; M. Usner; J. Vandenbroucke; W. Van Driessche; N. Van Eijndhoven; S. Vanheule; J. Van Santen; M. Vehring; E. Vogel; M. Vraeghe; C. Walck; A. Wallace; M. Wallraff; N. Wandkowsky; A. Waza; C. Weaver; M. J. Weiss; C. Wendt; S. Westerhoff; B. J. Whelan; S. Wickmann; K. Wiebe; C. H. Wiebusch; L. Wille; D. R. Williams; L. Wills; M. Wolf; J. Wood; T. R. Wood; E. Woolsey; K. Woschnagg; D. L. Xu; X. W. Xu; Y. Xu; J. P. Yanez; G. Yodh; S. Yoshida; T. Yuan; M. Zoll

doi:10.3847/1538-4357/aa8508

Search for Astrophysical Sources of Neutrinos Using Cascade Events in IceCube

M. G. Aartsen, M. Ackermann, J. Adams, J. A. Aguilar, M. Ahlers, M. Ahrens, I. Al Samarai, D. Altmann, K. Andeen, T. Anderson, I. Ansseau, G. Anton, C. Argüelles, J. Auffenberg, S. Axani, H. Bagherpour, X. Bai, S. W. Barwick, V. Baum, R. BayJ. J. Beatty, J. Becker Tjus, K. H. Becker, S. Benzvi, D. Berley, E. Bernardini, D. Z. Besson, G. Binder, D. Bindig, E. Blaufuss, S. Blot, C. Bohm, M. Börner, F. Bos, D. Bose, S. Böser, O. Botner, J. Bourbeau, F. Bradascio, J. Braun, L. Brayeur, M. Brenzke, H. P. Bretz, S. Bron, A. Burgman, T. Carver, J. Casey, M. Casier, E. Cheung, D. Chirkin, A. Christov, K. Clark, L. Classen, S. Coenders, G. H. Collin, J. M. Conrad, D. F. Cowen, R. Cross, M. Day, J. P.A.M. De André, C. De Clercq, J. J. Delaunay, H. Dembinski, S. De Ridder, P. Desiati, K. D. De Vries, G. De Wasseige, M. De With, T. Deyoung, J. C. Díaz-Vélez, V. Di Lorenzo, H. Dujmovic, J. P. Dumm, M. Dunkman, B. Eberhardt, T. Ehrhardt, B. Eichmann, P. Eller, P. A. Evenson, S. Fahey, A. R. Fazely, J. Felde, K. Filimonov, C. Finley, S. Flis, A. Franckowiak, E. Friedman, T. Fuchs, T. K. Gaisser, J. Gallagher, L. Gerhardt, K. Ghorbani, W. Giang, T. Glauch, T. Glüsenkamp, A. Goldschmidt, J. G. Gonzalez, D. Grant, Z. Griffith, C. Haack, A. Hallgren, F. Halzen, K. Hanson, D. Hebecker, D. Heereman, K. Helbing, R. Hellauer, S. Hickford, J. Hignight, G. C. Hill, K. D. Hoffman, R. Hoffmann, B. Hokanson-Fasig, K. Hoshina, F. Huang, M. Huber, K. Hultqvist, S. In, A. Ishihara, E. Jacobi, G. S. Japaridze, M. Jeong, K. Jero, B. J.P. Jones, P. Kalacynski, W. Kang, A. Kappes, T. Karg, A. Karle, U. Katz, M. Kauer, A. Keivani, J. L. Kelley, A. Kheirandish, J. Kim, M. Kim, T. Kintscher, J. Kiryluk, T. Kittler, S. R. Klein, G. Kohnen, R. Koirala, H. Kolanoski, L. Köpke, C. Kopper, S. Kopper, J. P. Koschinsky, D. J. Koskinen, M. Kowalski, K. Krings, M. Kroll, G. Krückl, J. Kunnen, S. Kunwar, N. Kurahashi, T. Kuwabara, A. Kyriacou, M. Labare, J. L. Lanfranchi, M. J. Larson, F. Lauber, D. Lennarz, M. Lesiak-Bzdak, M. Leuermann, Q. R. Liu, L. Lu, J. Lünemann, W. Luszczak, J. Madsen, G. Maggi, K. B.M. Mahn, S. Mancina, R. Maruyama, K. Mase, R. Maunu, F. McNally, K. Meagher, M. Medici, M. Meier, T. Menne, G. Merino, T. Meures, S. Miarecki, J. Micallef, G. Momenté, T. Montaruli, M. Moulai, R. Nahnhauer, P. Nakarmi, U. Naumann, G. Neer, H. Niederhausen, S. C. Nowicki, D. R. Nygren, A. Obertacke Pollmann, A. Olivas, A. O'Murchadha, T. Palczewski, H. Pandya, D. V. Pankova, P. Peiffer, J. A. Pepper, C. Pérez De Los Heros, D. Pieloth, E. Pinat, M. Plum, P. B. Price, G. T. Przybylski, C. Raab, L. Rädel, M. Rameez, K. Rawlins, R. Reimann, B. Relethford, M. Relich, E. Resconi, W. Rhode, M. Richman, B. Riedel, S. Robertson, M. Rongen, C. Rott, T. Ruhe, D. Ryckbosch, D. Rysewyk, T. Sälzer, S. E. Sanchez Herrera, A. Sandrock, J. Sandroos, S. Sarkar, K. Satalecka, P. Schlunder, T. Schmidt, A. Schneider, S. Schoenen, S. Schöneberg, L. Schumacher, D. Seckel, S. Seunarine, D. Soldin, M. Song, G. M. Spiczak, C. Spiering, J. Stachurska, T. Stanev, A. Stasik, J. Stettner, A. Steuer, T. Stezelberger, R. G. Stokstad, A. Stößl, N. L. Strotjohann, G. W. Sullivan, M. Sutherland, I. Taboada, J. Tatar, F. Tenholt, S. Ter-Antonyan, A. Terliuk, G. Tešić, S. Tilav, P. A. Toale, M. N. Tobin, S. Toscano, D. Tosi, M. Tselengidou, C. F. Tung, A. Turcati, C. F. Turley, B. Ty, E. Unger, M. Usner, J. Vandenbroucke, W. Van Driessche, N. Van Eijndhoven, S. Vanheule, J. Van Santen, M. Vehring, E. Vogel, M. Vraeghe, C. Walck, A. Wallace, M. Wallraff, N. Wandkowsky, A. Waza, C. Weaver, M. J. Weiss, C. Wendt, S. Westerhoff, B. J. Whelan, S. Wickmann, K. Wiebe, C. H. Wiebusch, L. Wille, D. R. Williams, L. Wills, M. Wolf, J. Wood, T. R. Wood, E. Woolsey, K. Woschnagg, D. L. Xu, X. W. Xu, Y. Xu, J. P. Yanez, G. Yodh, S. Yoshida, T. Yuan, M. Zoll

Research output: Contribution to journal › Article › peer-review

29 Scopus citations

Abstract

The IceCube neutrino observatory has established the existence of a flux of high-energy astrophysical neutrinos, which is inconsistent with the expectation from atmospheric backgrounds at a significance greater than 5σ. This flux has been observed in analyses of both track events from muon neutrino interactions and cascade events from interactions of all neutrino flavors. Searches for astrophysical neutrino sources have focused on track events due to the significantly better angular resolution of track reconstructions. To date, no such sources have been confirmed. Here we present the first search for astrophysical neutrino sources using cascades interacting in IceCube with deposited energies as small as 1 TeV. No significant clustering was observed in a selection of 263 cascades collected from 2010 May to 2012 May. We show that compared to the classic approach using tracks, this statistically independent search offers improved sensitivity to sources in the southern sky, especially if the emission is spatially extended or follows a soft energy spectrum. This enhancement is due to the low background from atmospheric neutrinos forming cascade events and the additional veto of atmospheric neutrinos at declinations ≲-30.

Original language	English (US)
Article number	136
Journal	Astrophysical Journal
Volume	846
Issue number	2
DOIs	https://doi.org/10.3847/1538-4357/aa8508
State	Published - Sep 10 2017

All Science Journal Classification (ASJC) codes

Astronomy and Astrophysics
Space and Planetary Science

Access to Document

10.3847/1538-4357/aa8508

Cite this

Aartsen, M. G., Ackermann, M., Adams, J., Aguilar, J. A., Ahlers, M., Ahrens, M., Al Samarai, I., Altmann, D., Andeen, K., Anderson, T., Ansseau, I., Anton, G., Argüelles, C., Auffenberg, J., Axani, S., Bagherpour, H., Bai, X., Barwick, S. W., Baum, V., ... Zoll, M. (2017). Search for Astrophysical Sources of Neutrinos Using Cascade Events in IceCube. Astrophysical Journal, 846(2), Article 136. https://doi.org/10.3847/1538-4357/aa8508

@article{1c04891f56d64aad9e66440102823fbc,

title = "Search for Astrophysical Sources of Neutrinos Using Cascade Events in IceCube",

abstract = "The IceCube neutrino observatory has established the existence of a flux of high-energy astrophysical neutrinos, which is inconsistent with the expectation from atmospheric backgrounds at a significance greater than 5σ. This flux has been observed in analyses of both track events from muon neutrino interactions and cascade events from interactions of all neutrino flavors. Searches for astrophysical neutrino sources have focused on track events due to the significantly better angular resolution of track reconstructions. To date, no such sources have been confirmed. Here we present the first search for astrophysical neutrino sources using cascades interacting in IceCube with deposited energies as small as 1 TeV. No significant clustering was observed in a selection of 263 cascades collected from 2010 May to 2012 May. We show that compared to the classic approach using tracks, this statistically independent search offers improved sensitivity to sources in the southern sky, especially if the emission is spatially extended or follows a soft energy spectrum. This enhancement is due to the low background from atmospheric neutrinos forming cascade events and the additional veto of atmospheric neutrinos at declinations ≲-30.",

author = "Aartsen, {M. G.} and M. Ackermann and J. Adams and Aguilar, {J. A.} and M. Ahlers and M. Ahrens and {Al Samarai}, I. and D. Altmann and K. Andeen and T. Anderson and I. Ansseau and G. Anton and C. Arg{\"u}elles and J. Auffenberg and S. Axani and H. Bagherpour and X. Bai and Barwick, {S. W.} and V. Baum and R. Bay and Beatty, {J. J.} and {Becker Tjus}, J. and Becker, {K. H.} and S. Benzvi and D. Berley and E. Bernardini and Besson, {D. Z.} and G. Binder and D. Bindig and E. Blaufuss and S. Blot and C. Bohm and M. B{\"o}rner and F. Bos and D. Bose and S. B{\"o}ser and O. Botner and J. Bourbeau and F. Bradascio and J. Braun and L. Brayeur and M. Brenzke and Bretz, {H. P.} and S. Bron and A. Burgman and T. Carver and J. Casey and M. Casier and E. Cheung and D. Chirkin and A. Christov and K. Clark and L. Classen and S. Coenders and Collin, {G. H.} and Conrad, {J. M.} and Cowen, {D. F.} and R. Cross and M. Day and {De Andr{\'e}}, {J. P.A.M.} and {De Clercq}, C. and Delaunay, {J. J.} and H. Dembinski and {De Ridder}, S. and P. Desiati and {De Vries}, {K. D.} and {De Wasseige}, G. and {De With}, M. and T. Deyoung and D{\'i}az-V{\'e}lez, {J. C.} and {Di Lorenzo}, V. and H. Dujmovic and Dumm, {J. P.} and M. Dunkman and B. Eberhardt and T. Ehrhardt and B. Eichmann and P. Eller and Evenson, {P. A.} and S. Fahey and Fazely, {A. R.} and J. Felde and K. Filimonov and C. Finley and S. Flis and A. Franckowiak and E. Friedman and T. Fuchs and Gaisser, {T. K.} and J. Gallagher and L. Gerhardt and K. Ghorbani and W. Giang and T. Glauch and T. Gl{\"u}senkamp and A. Goldschmidt and Gonzalez, {J. G.} and D. Grant and Z. Griffith and C. Haack and A. Hallgren and F. Halzen and K. Hanson and D. Hebecker and D. Heereman and K. Helbing and R. Hellauer and S. Hickford and J. Hignight and Hill, {G. C.} and Hoffman, {K. D.} and R. Hoffmann and B. Hokanson-Fasig and K. Hoshina and F. Huang and M. Huber and K. Hultqvist and S. In and A. Ishihara and E. Jacobi and Japaridze, {G. S.} and M. Jeong and K. Jero and Jones, {B. J.P.} and P. Kalacynski and W. Kang and A. Kappes and T. Karg and A. Karle and U. Katz and M. Kauer and A. Keivani and Kelley, {J. L.} and A. Kheirandish and J. Kim and M. Kim and T. Kintscher and J. Kiryluk and T. Kittler and Klein, {S. R.} and G. Kohnen and R. Koirala and H. Kolanoski and L. K{\"o}pke and C. Kopper and S. Kopper and Koschinsky, {J. P.} and Koskinen, {D. J.} and M. Kowalski and K. Krings and M. Kroll and G. Kr{\"u}ckl and J. Kunnen and S. Kunwar and N. Kurahashi and T. Kuwabara and A. Kyriacou and M. Labare and Lanfranchi, {J. L.} and Larson, {M. J.} and F. Lauber and D. Lennarz and M. Lesiak-Bzdak and M. Leuermann and Liu, {Q. R.} and L. Lu and J. L{\"u}nemann and W. Luszczak and J. Madsen and G. Maggi and Mahn, {K. B.M.} and S. Mancina and R. Maruyama and K. Mase and R. Maunu and F. McNally and K. Meagher and M. Medici and M. Meier and T. Menne and G. Merino and T. Meures and S. Miarecki and J. Micallef and G. Moment{\'e} and T. Montaruli and M. Moulai and R. Nahnhauer and P. Nakarmi and U. Naumann and G. Neer and H. Niederhausen and Nowicki, {S. C.} and Nygren, {D. R.} and {Obertacke Pollmann}, A. and A. Olivas and A. O'Murchadha and T. Palczewski and H. Pandya and Pankova, {D. V.} and P. Peiffer and Pepper, {J. A.} and {P{\'e}rez De Los Heros}, C. and D. Pieloth and E. Pinat and M. Plum and Price, {P. B.} and Przybylski, {G. T.} and C. Raab and L. R{\"a}del and M. Rameez and K. Rawlins and R. Reimann and B. Relethford and M. Relich and E. Resconi and W. Rhode and M. Richman and B. Riedel and S. Robertson and M. Rongen and C. Rott and T. Ruhe and D. Ryckbosch and D. Rysewyk and T. S{\"a}lzer and {Sanchez Herrera}, {S. E.} and A. Sandrock and J. Sandroos and S. Sarkar and K. Satalecka and P. Schlunder and T. Schmidt and A. Schneider and S. Schoenen and S. Sch{\"o}neberg and L. Schumacher and D. Seckel and S. Seunarine and D. Soldin and M. Song and Spiczak, {G. M.} and C. Spiering and J. Stachurska and T. Stanev and A. Stasik and J. Stettner and A. Steuer and T. Stezelberger and Stokstad, {R. G.} and A. St{\"o}{\ss}l and Strotjohann, {N. L.} and Sullivan, {G. W.} and M. Sutherland and I. Taboada and J. Tatar and F. Tenholt and S. Ter-Antonyan and A. Terliuk and G. Te{\v s}i{\'c} and S. Tilav and Toale, {P. A.} and Tobin, {M. N.} and S. Toscano and D. Tosi and M. Tselengidou and Tung, {C. F.} and A. Turcati and Turley, {C. F.} and B. Ty and E. Unger and M. Usner and J. Vandenbroucke and {Van Driessche}, W. and {Van Eijndhoven}, N. and S. Vanheule and {Van Santen}, J. and M. Vehring and E. Vogel and M. Vraeghe and C. Walck and A. Wallace and M. Wallraff and N. Wandkowsky and A. Waza and C. Weaver and Weiss, {M. J.} and C. Wendt and S. Westerhoff and Whelan, {B. J.} and S. Wickmann and K. Wiebe and Wiebusch, {C. H.} and L. Wille and Williams, {D. R.} and L. Wills and M. Wolf and J. Wood and Wood, {T. R.} and E. Woolsey and K. Woschnagg and Xu, {D. L.} and Xu, {X. W.} and Y. Xu and Yanez, {J. P.} and G. Yodh and S. Yoshida and T. Yuan and M. Zoll",

year = "2017",

month = sep,

day = "10",

doi = "10.3847/1538-4357/aa8508",

language = "English (US)",

volume = "846",

journal = "Astrophysical Journal",

issn = "0004-637X",

publisher = "American Astronomical Society",

number = "2",

}

Aartsen, MG, Ackermann, M, Adams, J, Aguilar, JA, Ahlers, M, Ahrens, M, Al Samarai, I, Altmann, D, Andeen, K, Anderson, T, Ansseau, I, Anton, G, Argüelles, C, Auffenberg, J, Axani, S, Bagherpour, H, Bai, X, Barwick, SW, Baum, V, Bay, R, Beatty, JJ, Becker Tjus, J, Becker, KH, Benzvi, S, Berley, D, Bernardini, E, Besson, DZ, Binder, G, Bindig, D, Blaufuss, E, Blot, S, Bohm, C, Börner, M, Bos, F, Bose, D, Böser, S, Botner, O, Bourbeau, J, Bradascio, F, Braun, J, Brayeur, L, Brenzke, M, Bretz, HP, Bron, S, Burgman, A, Carver, T, Casey, J, Casier, M, Cheung, E, Chirkin, D, Christov, A, Clark, K, Classen, L, Coenders, S, Collin, GH, Conrad, JM, Cowen, DF, Cross, R, Day, M, De André, JPAM, De Clercq, C, Delaunay, JJ, Dembinski, H, De Ridder, S, Desiati, P, De Vries, KD, De Wasseige, G, De With, M, Deyoung, T, Díaz-Vélez, JC, Di Lorenzo, V, Dujmovic, H, Dumm, JP, Dunkman, M, Eberhardt, B, Ehrhardt, T, Eichmann, B, Eller, P, Evenson, PA, Fahey, S, Fazely, AR, Felde, J, Filimonov, K, Finley, C, Flis, S, Franckowiak, A, Friedman, E, Fuchs, T, Gaisser, TK, Gallagher, J, Gerhardt, L, Ghorbani, K, Giang, W, Glauch, T, Glüsenkamp, T, Goldschmidt, A, Gonzalez, JG, Grant, D, Griffith, Z, Haack, C, Hallgren, A, Halzen, F, Hanson, K, Hebecker, D, Heereman, D, Helbing, K, Hellauer, R, Hickford, S, Hignight, J, Hill, GC, Hoffman, KD, Hoffmann, R, Hokanson-Fasig, B, Hoshina, K, Huang, F, Huber, M, Hultqvist, K, In, S, Ishihara, A, Jacobi, E, Japaridze, GS, Jeong, M, Jero, K, Jones, BJP, Kalacynski, P, Kang, W, Kappes, A, Karg, T, Karle, A, Katz, U, Kauer, M, Keivani, A, Kelley, JL, Kheirandish, A, Kim, J, Kim, M, Kintscher, T, Kiryluk, J, Kittler, T, Klein, SR, Kohnen, G, Koirala, R, Kolanoski, H, Köpke, L, Kopper, C, Kopper, S, Koschinsky, JP, Koskinen, DJ, Kowalski, M, Krings, K, Kroll, M, Krückl, G, Kunnen, J, Kunwar, S, Kurahashi, N, Kuwabara, T, Kyriacou, A, Labare, M, Lanfranchi, JL, Larson, MJ, Lauber, F, Lennarz, D, Lesiak-Bzdak, M, Leuermann, M, Liu, QR, Lu, L, Lünemann, J, Luszczak, W, Madsen, J, Maggi, G, Mahn, KBM, Mancina, S, Maruyama, R, Mase, K, Maunu, R, McNally, F, Meagher, K, Medici, M, Meier, M, Menne, T, Merino, G, Meures, T, Miarecki, S, Micallef, J, Momenté, G, Montaruli, T, Moulai, M, Nahnhauer, R, Nakarmi, P, Naumann, U, Neer, G, Niederhausen, H, Nowicki, SC, Nygren, DR, Obertacke Pollmann, A, Olivas, A, O'Murchadha, A, Palczewski, T, Pandya, H, Pankova, DV, Peiffer, P, Pepper, JA, Pérez De Los Heros, C, Pieloth, D, Pinat, E, Plum, M, Price, PB, Przybylski, GT, Raab, C, Rädel, L, Rameez, M, Rawlins, K, Reimann, R, Relethford, B, Relich, M, Resconi, E, Rhode, W, Richman, M, Riedel, B, Robertson, S, Rongen, M, Rott, C, Ruhe, T, Ryckbosch, D, Rysewyk, D, Sälzer, T, Sanchez Herrera, SE, Sandrock, A, Sandroos, J, Sarkar, S, Satalecka, K, Schlunder, P, Schmidt, T, Schneider, A, Schoenen, S, Schöneberg, S, Schumacher, L, Seckel, D, Seunarine, S, Soldin, D, Song, M, Spiczak, GM, Spiering, C, Stachurska, J, Stanev, T, Stasik, A, Stettner, J, Steuer, A, Stezelberger, T, Stokstad, RG, Stößl, A, Strotjohann, NL, Sullivan, GW, Sutherland, M, Taboada, I, Tatar, J, Tenholt, F, Ter-Antonyan, S, Terliuk, A, Tešić, G, Tilav, S, Toale, PA, Tobin, MN, Toscano, S, Tosi, D, Tselengidou, M, Tung, CF, Turcati, A, Turley, CF, Ty, B, Unger, E, Usner, M, Vandenbroucke, J, Van Driessche, W, Van Eijndhoven, N, Vanheule, S, Van Santen, J, Vehring, M, Vogel, E, Vraeghe, M, Walck, C, Wallace, A, Wallraff, M, Wandkowsky, N, Waza, A, Weaver, C, Weiss, MJ, Wendt, C, Westerhoff, S, Whelan, BJ, Wickmann, S, Wiebe, K, Wiebusch, CH, Wille, L, Williams, DR, Wills, L, Wolf, M, Wood, J, Wood, TR, Woolsey, E, Woschnagg, K, Xu, DL, Xu, XW, Xu, Y, Yanez, JP, Yodh, G, Yoshida, S, Yuan, T & Zoll, M 2017, 'Search for Astrophysical Sources of Neutrinos Using Cascade Events in IceCube', Astrophysical Journal, vol. 846, no. 2, 136. https://doi.org/10.3847/1538-4357/aa8508

TY - JOUR

T1 - Search for Astrophysical Sources of Neutrinos Using Cascade Events in IceCube

AU - Aartsen, M. G.

AU - Ackermann, M.

AU - Adams, J.

AU - Aguilar, J. A.

AU - Ahlers, M.

AU - Ahrens, M.

AU - Al Samarai, I.

AU - Altmann, D.

AU - Andeen, K.

AU - Anderson, T.

AU - Ansseau, I.

AU - Anton, G.

AU - Argüelles, C.

AU - Auffenberg, J.

AU - Axani, S.

AU - Bagherpour, H.

AU - Bai, X.

AU - Barwick, S. W.

AU - Baum, V.

AU - Bay, R.

AU - Beatty, J. J.

AU - Becker Tjus, J.

AU - Becker, K. H.

AU - Benzvi, S.

AU - Berley, D.

AU - Bernardini, E.

AU - Besson, D. Z.

AU - Binder, G.

AU - Bindig, D.

AU - Blaufuss, E.

AU - Blot, S.

AU - Bohm, C.

AU - Börner, M.

AU - Bos, F.

AU - Bose, D.

AU - Böser, S.

AU - Botner, O.

AU - Bourbeau, J.

AU - Bradascio, F.

AU - Braun, J.

AU - Brayeur, L.

AU - Brenzke, M.

AU - Bretz, H. P.

AU - Bron, S.

AU - Burgman, A.

AU - Carver, T.

AU - Casey, J.

AU - Casier, M.

AU - Cheung, E.

AU - Chirkin, D.

AU - Christov, A.

AU - Clark, K.

AU - Classen, L.

AU - Coenders, S.

AU - Collin, G. H.

AU - Conrad, J. M.

AU - Cowen, D. F.

AU - Cross, R.

AU - Day, M.

AU - De André, J. P.A.M.

AU - De Clercq, C.

AU - Delaunay, J. J.

AU - Dembinski, H.

AU - De Ridder, S.

AU - Desiati, P.

AU - De Vries, K. D.

AU - De Wasseige, G.

AU - De With, M.

AU - Deyoung, T.

AU - Díaz-Vélez, J. C.

AU - Di Lorenzo, V.

AU - Dujmovic, H.

AU - Dumm, J. P.

AU - Dunkman, M.

AU - Eberhardt, B.

AU - Ehrhardt, T.

AU - Eichmann, B.

AU - Eller, P.

AU - Evenson, P. A.

AU - Fahey, S.

AU - Fazely, A. R.

AU - Felde, J.

AU - Filimonov, K.

AU - Finley, C.

AU - Flis, S.

AU - Franckowiak, A.

AU - Friedman, E.

AU - Fuchs, T.

AU - Gaisser, T. K.

AU - Gallagher, J.

AU - Gerhardt, L.

AU - Ghorbani, K.

AU - Giang, W.

AU - Glauch, T.

AU - Glüsenkamp, T.

AU - Goldschmidt, A.

AU - Gonzalez, J. G.

AU - Grant, D.

AU - Griffith, Z.

AU - Haack, C.

AU - Hallgren, A.

AU - Halzen, F.

AU - Hanson, K.

AU - Hebecker, D.

AU - Heereman, D.

AU - Helbing, K.

AU - Hellauer, R.

AU - Hickford, S.

AU - Hignight, J.

AU - Hill, G. C.

AU - Hoffman, K. D.

AU - Hoffmann, R.

AU - Hokanson-Fasig, B.

AU - Hoshina, K.

AU - Huang, F.

AU - Huber, M.

AU - Hultqvist, K.

AU - In, S.

AU - Ishihara, A.

AU - Jacobi, E.

AU - Japaridze, G. S.

AU - Jeong, M.

AU - Jero, K.

AU - Jones, B. J.P.

AU - Kalacynski, P.

AU - Kang, W.

AU - Kappes, A.

AU - Karg, T.

AU - Karle, A.

AU - Katz, U.

AU - Kauer, M.

AU - Keivani, A.

AU - Kelley, J. L.

AU - Kheirandish, A.

AU - Kim, J.

AU - Kim, M.

AU - Kintscher, T.

AU - Kiryluk, J.

AU - Kittler, T.

AU - Klein, S. R.

AU - Kohnen, G.

AU - Koirala, R.

AU - Kolanoski, H.

AU - Köpke, L.

AU - Kopper, C.

AU - Kopper, S.

AU - Koschinsky, J. P.

AU - Koskinen, D. J.

AU - Kowalski, M.

AU - Krings, K.

AU - Kroll, M.

AU - Krückl, G.

AU - Kunnen, J.

AU - Kunwar, S.

AU - Kurahashi, N.

AU - Kuwabara, T.

AU - Kyriacou, A.

AU - Labare, M.

AU - Lanfranchi, J. L.

AU - Larson, M. J.

AU - Lauber, F.

AU - Lennarz, D.

AU - Lesiak-Bzdak, M.

AU - Leuermann, M.

AU - Liu, Q. R.

AU - Lu, L.

AU - Lünemann, J.

AU - Luszczak, W.

AU - Madsen, J.

AU - Maggi, G.

AU - Mahn, K. B.M.

AU - Mancina, S.

AU - Maruyama, R.

AU - Mase, K.

AU - Maunu, R.

AU - McNally, F.

AU - Meagher, K.

AU - Medici, M.

AU - Meier, M.

AU - Menne, T.

AU - Merino, G.

AU - Meures, T.

AU - Miarecki, S.

AU - Micallef, J.

AU - Momenté, G.

AU - Montaruli, T.

AU - Moulai, M.

AU - Nahnhauer, R.

AU - Nakarmi, P.

AU - Naumann, U.

AU - Neer, G.

AU - Niederhausen, H.

AU - Nowicki, S. C.

AU - Nygren, D. R.

AU - Obertacke Pollmann, A.

AU - Olivas, A.

AU - O'Murchadha, A.

AU - Palczewski, T.

AU - Pandya, H.

AU - Pankova, D. V.

AU - Peiffer, P.

AU - Pepper, J. A.

AU - Pérez De Los Heros, C.

AU - Pieloth, D.

AU - Pinat, E.

AU - Plum, M.

AU - Price, P. B.

AU - Przybylski, G. T.

AU - Raab, C.

AU - Rädel, L.

AU - Rameez, M.

AU - Rawlins, K.

AU - Reimann, R.

AU - Relethford, B.

AU - Relich, M.

AU - Resconi, E.

AU - Rhode, W.

AU - Richman, M.

AU - Riedel, B.

AU - Robertson, S.

AU - Rongen, M.

AU - Rott, C.

AU - Ruhe, T.

AU - Ryckbosch, D.

AU - Rysewyk, D.

AU - Sälzer, T.

AU - Sanchez Herrera, S. E.

AU - Sandrock, A.

AU - Sandroos, J.

AU - Sarkar, S.

AU - Satalecka, K.

AU - Schlunder, P.

AU - Schmidt, T.

AU - Schneider, A.

AU - Schoenen, S.

AU - Schöneberg, S.

AU - Schumacher, L.

AU - Seckel, D.

AU - Seunarine, S.

AU - Soldin, D.

AU - Song, M.

AU - Spiczak, G. M.

AU - Spiering, C.

AU - Stachurska, J.

AU - Stanev, T.

AU - Stasik, A.

AU - Stettner, J.

AU - Steuer, A.

AU - Stezelberger, T.

AU - Stokstad, R. G.

AU - Stößl, A.

AU - Strotjohann, N. L.

AU - Sullivan, G. W.

AU - Sutherland, M.

AU - Taboada, I.

AU - Tatar, J.

AU - Tenholt, F.

AU - Ter-Antonyan, S.

AU - Terliuk, A.

AU - Tešić, G.

AU - Tilav, S.

AU - Toale, P. A.

AU - Tobin, M. N.

AU - Toscano, S.

AU - Tosi, D.

AU - Tselengidou, M.

AU - Tung, C. F.

AU - Turcati, A.

AU - Turley, C. F.

AU - Ty, B.

AU - Unger, E.

AU - Usner, M.

AU - Vandenbroucke, J.

AU - Van Driessche, W.

AU - Van Eijndhoven, N.

AU - Vanheule, S.

AU - Van Santen, J.

AU - Vehring, M.

AU - Vogel, E.

AU - Vraeghe, M.

AU - Walck, C.

AU - Wallace, A.

AU - Wallraff, M.

AU - Wandkowsky, N.

AU - Waza, A.

AU - Weaver, C.

AU - Weiss, M. J.

AU - Wendt, C.

AU - Westerhoff, S.

AU - Whelan, B. J.

AU - Wickmann, S.

AU - Wiebe, K.

AU - Wiebusch, C. H.

AU - Wille, L.

AU - Williams, D. R.

AU - Wills, L.

AU - Wolf, M.

AU - Wood, J.

AU - Wood, T. R.

AU - Woolsey, E.

AU - Woschnagg, K.

AU - Xu, D. L.

AU - Xu, X. W.

AU - Xu, Y.

AU - Yanez, J. P.

AU - Yodh, G.

AU - Yoshida, S.

AU - Yuan, T.

AU - Zoll, M.

PY - 2017/9/10

Y1 - 2017/9/10

N2 - The IceCube neutrino observatory has established the existence of a flux of high-energy astrophysical neutrinos, which is inconsistent with the expectation from atmospheric backgrounds at a significance greater than 5σ. This flux has been observed in analyses of both track events from muon neutrino interactions and cascade events from interactions of all neutrino flavors. Searches for astrophysical neutrino sources have focused on track events due to the significantly better angular resolution of track reconstructions. To date, no such sources have been confirmed. Here we present the first search for astrophysical neutrino sources using cascades interacting in IceCube with deposited energies as small as 1 TeV. No significant clustering was observed in a selection of 263 cascades collected from 2010 May to 2012 May. We show that compared to the classic approach using tracks, this statistically independent search offers improved sensitivity to sources in the southern sky, especially if the emission is spatially extended or follows a soft energy spectrum. This enhancement is due to the low background from atmospheric neutrinos forming cascade events and the additional veto of atmospheric neutrinos at declinations ≲-30.

AB - The IceCube neutrino observatory has established the existence of a flux of high-energy astrophysical neutrinos, which is inconsistent with the expectation from atmospheric backgrounds at a significance greater than 5σ. This flux has been observed in analyses of both track events from muon neutrino interactions and cascade events from interactions of all neutrino flavors. Searches for astrophysical neutrino sources have focused on track events due to the significantly better angular resolution of track reconstructions. To date, no such sources have been confirmed. Here we present the first search for astrophysical neutrino sources using cascades interacting in IceCube with deposited energies as small as 1 TeV. No significant clustering was observed in a selection of 263 cascades collected from 2010 May to 2012 May. We show that compared to the classic approach using tracks, this statistically independent search offers improved sensitivity to sources in the southern sky, especially if the emission is spatially extended or follows a soft energy spectrum. This enhancement is due to the low background from atmospheric neutrinos forming cascade events and the additional veto of atmospheric neutrinos at declinations ≲-30.

UR - http://www.scopus.com/inward/record.url?scp=85029540709&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85029540709&partnerID=8YFLogxK

U2 - 10.3847/1538-4357/aa8508

DO - 10.3847/1538-4357/aa8508

M3 - Article

AN - SCOPUS:85029540709

SN - 0004-637X

VL - 846

JO - Astrophysical Journal

JF - Astrophysical Journal

IS - 2

M1 - 136

ER -

Search for Astrophysical Sources of Neutrinos Using Cascade Events in IceCube

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