Search for steady point-like sources in the astrophysical muon neutrino flux with 8 years of IceCube data

The IceCube Collaboration has observed a highenergy astrophysical neutrino flux and recently found evidence for neutrino emission from the blazar TXS 0506+056. These results open a new window into the high-energy universe. However, the source or sources of most of the observed flux of astrophysical...

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Main Authors: IceCube Collaboration, Aartsen, MG, Ackermann, M, Adams, J, Aguilar, JA, Ahlers, M, Ahrens, M, Altmann, D, Andeen, K, Anderson, T, Ansseau, I, Anton, G, Argüelles, C, Auffenberg, J, Axani, S, Backes, P, Bagherpour, H, Bai, X, Barbano, A, Barron, JP, Barwick, SW, Baum, V, Bay, R, Beatty, JJ, Tjus, JB, Becker, K-H, Benzvi, S, Berley, D, Bernardini, E, Besson, DZ, Binder, G, Bindig, D, Blaufuss, E, Blot, S, Bohm, C, Börner, M, Bos, F, Böser, S, Botner, O, Bourbeau, E, Bourbeau, J, Bradascio, F, Braun, J, Bretz, H-P, Bron, S, Brostean-Kaiser, J, Burgman, A, Busse, RS, Carver, T, Chen, C, Cheung, E, Chirkin, D, Clark, K, Classen, L, Collin, GH, Conrad, JM, Coppin, P, Correa, P, Cowen, DF, Cross, R, Dave, P, Day, M, André, JPAMD, Clercq, CD, Delaunay, JJ, Dembinski, H, Deoskar, K, Ridder, SD, Desiati, P, Vries, KDD, Wasseige, GD, With, MD, Deyoung, T, Díaz-Vélez, JC, Dujmovic, H, Dunkman, M, Dvorak, E, Eberhardt, B, Ehrhardt, T, Eichmann, B, Eller, P, Evenson, PA, Fahey, S, Fazely, AR, Felde, J, Filimonov, K, Finley, C, Franckowiak, A, Friedman, E, Fritz, A, Gaisser, TK, Gallagher, J, Ganster, E, Garrappa, S, Gerhardt, L, Ghorbani, K, Giang, W, Glauch, T, Glüsenkamp, T, Goldschmidt, A, Gonzalez, JG, Grant, D, Griffith, Z, Haack, C, Hallgren, A, Halve, L, Halzen, F, Hanson, K, Hebecker, D, Heereman, D, Helbing, K, Hellauer, R, Hickford, S, Hignight, J, Hill, GC, Hoffman, KD, Hoffmann, R, Hoinka, T, Hokanson-Fasig, B, Hoshina, K, Huang, F, Huber, M, Hultqvist, K, Hünnefeld, M, Hussain, R, In, S, Iovine, N, Ishihara, A, Jacobi, E, Japaridze, GS, Jeong, M, Jero, K, Jones, BJP, Kalaczynski, P, Kang, W, Kappes, A, Kappesser, D, Karg, T, Karle, A, Katz, U, Kauer, M, Keivani, A, Kelley, JL, Kheirandish, A, Kim, J, Kintscher, T, Kiryluk, J, Kittler, T, Klein, SR, Koirala, R, Kolanoski, H, Köpke, L, Kopper, C, Kopper, S, Koskinen, DJ, Kowalski, M, Krings, K, Kroll, M, Krückl, G, Kunwar, S, Kurahashi, N, Kyriacou, A, Labare, M, Lanfranchi, JL, Larson, MJ, Lauber, F, Leonard, K, Leuermann, M, Liu, QR, Lohfink, E, Mariscal, CJL, Lu, L, Lünemann, J, Luszczak, W, Madsen, J, Maggi, G, Mahn, KBM, Makino, Y, Mancina, S, Mariş, IC, Maruyama, R, Mase, K, Maunu, R, Meagher, K, Medici, M, Meier, M, Menne, T, Merino, G, Meures, T, Miarecki, S, Micallef, J, Momenté, G, Montaruli, T, Moore, RW, Moulai, M, Nagai, R, Nahnhauer, R, Nakarmi, P, Naumann, U, Neer, G, Niederhausen, H, Nowicki, SC, Nygren, DR, Pollmann, AO, Olivas, A, O'Murchadha, A, O'Sullivan, E, Palczewski, T, Pandya, H, Pankova, DV, Peiffer, P, Heros, CPDL, Pieloth, D, Pinat, E, Pizzuto, A, Plum, M, Price, PB, Przybylski, GT, Raab, C, Raissi, A, Rameez, M, Rauch, L, Rawlins, K, Rea, IC, Reimann, R, Relethford, B, Renzi, G, Resconi, E, Rhode, W, Richman, M, Robertson, S, Rongen, M, Rott, C, Ruhe, T, Ryckbosch, D, Rysewyk, D, Safa, I, Herrera, SES, Sandrock, A, Sandroos, J, Santander, M, Sarkar, S, Satalecka, K, Schaufel, M, Schlunder, P, Schmidt, T, Schneider, A, Schneider, J, Schöneberg, S, Schumacher, L, Sclafani, S, Seckel, D, Seunarine, S, Soedingrekso, J, Soldin, D, Song, M, Spiczak, GM, Spiering, C, Stachurska, J, Stamatikos, M, Stanev, T, Stasik, A, Stein, R, Stettner, J, Steuer, A, Stezelberger, T, Stokstad, RG, Stößl, A, Strotjohann, NL, Stuttard, T, Sullivan, GW, Sutherland, M, Taboada, I, Tenholt, F, Ter-Antonyan, S, Terliuk, A, Tilav, S, Tobin, MN, Tönnis, C, Toscano, S, Tosi, D, Tselengidou, M, Tung, CF, Turcati, A, Turcotte, R, Turley, CF, Ty, B, Unger, E, Elorrieta, MAU, Usner, M, Vandenbroucke, J, Driessche, WV, Eijk, DV, Eijndhoven, NV, Vanheule, S, Santen, JV, Vraeghe, M, Walck, C, Wallace, A, Wallraff, M, Wandler, FD, Wandkowsky, N, Watson, TB, Weaver, C, Weiss, MJ, Wendt, C, Werthebach, J, Westerhoff, S, Whelan, BJ, Whitehorn, N, Wiebe, K, Wiebusch, CH, Wille, L, Williams, DR, Wills, L, Wolf, M, Wood, J, Wood, TR, Woolsey, E, Woschnagg, K, Wrede, G, Xu, DL, Xu, XW, Xu, Y, Yanez, JP, Yodh, G, Yoshida, S, Yuan, T
Format: Journal article
Published: Springer Berlin Heidelberg 2019
_version_ 1826277880203575296
author IceCube Collaboration
Aartsen, MG
Ackermann, M
Adams, J
Aguilar, JA
Ahlers, M
Ahrens, M
Altmann, D
Andeen, K
Anderson, T
Ansseau, I
Anton, G
Argüelles, C
Auffenberg, J
Axani, S
Backes, P
Bagherpour, H
Bai, X
Barbano, A
Barron, JP
Barwick, SW
Baum, V
Bay, R
Beatty, JJ
Tjus, JB
Becker, K-H
Benzvi, S
Berley, D
Bernardini, E
Besson, DZ
Binder, G
Bindig, D
Blaufuss, E
Blot, S
Bohm, C
Börner, M
Bos, F
Böser, S
Botner, O
Bourbeau, E
Bourbeau, J
Bradascio, F
Braun, J
Bretz, H-P
Bron, S
Brostean-Kaiser, J
Burgman, A
Busse, RS
Carver, T
Chen, C
Cheung, E
Chirkin, D
Clark, K
Classen, L
Collin, GH
Conrad, JM
Coppin, P
Correa, P
Cowen, DF
Cross, R
Dave, P
Day, M
André, JPAMD
Clercq, CD
Delaunay, JJ
Dembinski, H
Deoskar, K
Ridder, SD
Desiati, P
Vries, KDD
Wasseige, GD
With, MD
Deyoung, T
Díaz-Vélez, JC
Dujmovic, H
Dunkman, M
Dvorak, E
Eberhardt, B
Ehrhardt, T
Eichmann, B
Eller, P
Evenson, PA
Fahey, S
Fazely, AR
Felde, J
Filimonov, K
Finley, C
Franckowiak, A
Friedman, E
Fritz, A
Gaisser, TK
Gallagher, J
Ganster, E
Garrappa, S
Gerhardt, L
Ghorbani, K
Giang, W
Glauch, T
Glüsenkamp, T
Goldschmidt, A
Gonzalez, JG
Grant, D
Griffith, Z
Haack, C
Hallgren, A
Halve, L
Halzen, F
Hanson, K
Hebecker, D
Heereman, D
Helbing, K
Hellauer, R
Hickford, S
Hignight, J
Hill, GC
Hoffman, KD
Hoffmann, R
Hoinka, T
Hokanson-Fasig, B
Hoshina, K
Huang, F
Huber, M
Hultqvist, K
Hünnefeld, M
Hussain, R
In, S
Iovine, N
Ishihara, A
Jacobi, E
Japaridze, GS
Jeong, M
Jero, K
Jones, BJP
Kalaczynski, P
Kang, W
Kappes, A
Kappesser, D
Karg, T
Karle, A
Katz, U
Kauer, M
Keivani, A
Kelley, JL
Kheirandish, A
Kim, J
Kintscher, T
Kiryluk, J
Kittler, T
Klein, SR
Koirala, R
Kolanoski, H
Köpke, L
Kopper, C
Kopper, S
Koskinen, DJ
Kowalski, M
Krings, K
Kroll, M
Krückl, G
Kunwar, S
Kurahashi, N
Kyriacou, A
Labare, M
Lanfranchi, JL
Larson, MJ
Lauber, F
Leonard, K
Leuermann, M
Liu, QR
Lohfink, E
Mariscal, CJL
Lu, L
Lünemann, J
Luszczak, W
Madsen, J
Maggi, G
Mahn, KBM
Makino, Y
Mancina, S
Mariş, IC
Maruyama, R
Mase, K
Maunu, R
Meagher, K
Medici, M
Meier, M
Menne, T
Merino, G
Meures, T
Miarecki, S
Micallef, J
Momenté, G
Montaruli, T
Moore, RW
Moulai, M
Nagai, R
Nahnhauer, R
Nakarmi, P
Naumann, U
Neer, G
Niederhausen, H
Nowicki, SC
Nygren, DR
Pollmann, AO
Olivas, A
O'Murchadha, A
O'Sullivan, E
Palczewski, T
Pandya, H
Pankova, DV
Peiffer, P
Heros, CPDL
Pieloth, D
Pinat, E
Pizzuto, A
Plum, M
Price, PB
Przybylski, GT
Raab, C
Raissi, A
Rameez, M
Rauch, L
Rawlins, K
Rea, IC
Reimann, R
Relethford, B
Renzi, G
Resconi, E
Rhode, W
Richman, M
Robertson, S
Rongen, M
Rott, C
Ruhe, T
Ryckbosch, D
Rysewyk, D
Safa, I
Herrera, SES
Sandrock, A
Sandroos, J
Santander, M
Sarkar, S
Satalecka, K
Schaufel, M
Schlunder, P
Schmidt, T
Schneider, A
Schneider, J
Schöneberg, S
Schumacher, L
Sclafani, S
Seckel, D
Seunarine, S
Soedingrekso, J
Soldin, D
Song, M
Spiczak, GM
Spiering, C
Stachurska, J
Stamatikos, M
Stanev, T
Stasik, A
Stein, R
Stettner, J
Steuer, A
Stezelberger, T
Stokstad, RG
Stößl, A
Strotjohann, NL
Stuttard, T
Sullivan, GW
Sutherland, M
Taboada, I
Tenholt, F
Ter-Antonyan, S
Terliuk, A
Tilav, S
Tobin, MN
Tönnis, C
Toscano, S
Tosi, D
Tselengidou, M
Tung, CF
Turcati, A
Turcotte, R
Turley, CF
Ty, B
Unger, E
Elorrieta, MAU
Usner, M
Vandenbroucke, J
Driessche, WV
Eijk, DV
Eijndhoven, NV
Vanheule, S
Santen, JV
Vraeghe, M
Walck, C
Wallace, A
Wallraff, M
Wandler, FD
Wandkowsky, N
Watson, TB
Weaver, C
Weiss, MJ
Wendt, C
Werthebach, J
Westerhoff, S
Whelan, BJ
Whitehorn, N
Wiebe, K
Wiebusch, CH
Wille, L
Williams, DR
Wills, L
Wolf, M
Wood, J
Wood, TR
Woolsey, E
Woschnagg, K
Wrede, G
Xu, DL
Xu, XW
Xu, Y
Yanez, JP
Yodh, G
Yoshida, S
Yuan, T
author_facet IceCube Collaboration
Aartsen, MG
Ackermann, M
Adams, J
Aguilar, JA
Ahlers, M
Ahrens, M
Altmann, D
Andeen, K
Anderson, T
Ansseau, I
Anton, G
Argüelles, C
Auffenberg, J
Axani, S
Backes, P
Bagherpour, H
Bai, X
Barbano, A
Barron, JP
Barwick, SW
Baum, V
Bay, R
Beatty, JJ
Tjus, JB
Becker, K-H
Benzvi, S
Berley, D
Bernardini, E
Besson, DZ
Binder, G
Bindig, D
Blaufuss, E
Blot, S
Bohm, C
Börner, M
Bos, F
Böser, S
Botner, O
Bourbeau, E
Bourbeau, J
Bradascio, F
Braun, J
Bretz, H-P
Bron, S
Brostean-Kaiser, J
Burgman, A
Busse, RS
Carver, T
Chen, C
Cheung, E
Chirkin, D
Clark, K
Classen, L
Collin, GH
Conrad, JM
Coppin, P
Correa, P
Cowen, DF
Cross, R
Dave, P
Day, M
André, JPAMD
Clercq, CD
Delaunay, JJ
Dembinski, H
Deoskar, K
Ridder, SD
Desiati, P
Vries, KDD
Wasseige, GD
With, MD
Deyoung, T
Díaz-Vélez, JC
Dujmovic, H
Dunkman, M
Dvorak, E
Eberhardt, B
Ehrhardt, T
Eichmann, B
Eller, P
Evenson, PA
Fahey, S
Fazely, AR
Felde, J
Filimonov, K
Finley, C
Franckowiak, A
Friedman, E
Fritz, A
Gaisser, TK
Gallagher, J
Ganster, E
Garrappa, S
Gerhardt, L
Ghorbani, K
Giang, W
Glauch, T
Glüsenkamp, T
Goldschmidt, A
Gonzalez, JG
Grant, D
Griffith, Z
Haack, C
Hallgren, A
Halve, L
Halzen, F
Hanson, K
Hebecker, D
Heereman, D
Helbing, K
Hellauer, R
Hickford, S
Hignight, J
Hill, GC
Hoffman, KD
Hoffmann, R
Hoinka, T
Hokanson-Fasig, B
Hoshina, K
Huang, F
Huber, M
Hultqvist, K
Hünnefeld, M
Hussain, R
In, S
Iovine, N
Ishihara, A
Jacobi, E
Japaridze, GS
Jeong, M
Jero, K
Jones, BJP
Kalaczynski, P
Kang, W
Kappes, A
Kappesser, D
Karg, T
Karle, A
Katz, U
Kauer, M
Keivani, A
Kelley, JL
Kheirandish, A
Kim, J
Kintscher, T
Kiryluk, J
Kittler, T
Klein, SR
Koirala, R
Kolanoski, H
Köpke, L
Kopper, C
Kopper, S
Koskinen, DJ
Kowalski, M
Krings, K
Kroll, M
Krückl, G
Kunwar, S
Kurahashi, N
Kyriacou, A
Labare, M
Lanfranchi, JL
Larson, MJ
Lauber, F
Leonard, K
Leuermann, M
Liu, QR
Lohfink, E
Mariscal, CJL
Lu, L
Lünemann, J
Luszczak, W
Madsen, J
Maggi, G
Mahn, KBM
Makino, Y
Mancina, S
Mariş, IC
Maruyama, R
Mase, K
Maunu, R
Meagher, K
Medici, M
Meier, M
Menne, T
Merino, G
Meures, T
Miarecki, S
Micallef, J
Momenté, G
Montaruli, T
Moore, RW
Moulai, M
Nagai, R
Nahnhauer, R
Nakarmi, P
Naumann, U
Neer, G
Niederhausen, H
Nowicki, SC
Nygren, DR
Pollmann, AO
Olivas, A
O'Murchadha, A
O'Sullivan, E
Palczewski, T
Pandya, H
Pankova, DV
Peiffer, P
Heros, CPDL
Pieloth, D
Pinat, E
Pizzuto, A
Plum, M
Price, PB
Przybylski, GT
Raab, C
Raissi, A
Rameez, M
Rauch, L
Rawlins, K
Rea, IC
Reimann, R
Relethford, B
Renzi, G
Resconi, E
Rhode, W
Richman, M
Robertson, S
Rongen, M
Rott, C
Ruhe, T
Ryckbosch, D
Rysewyk, D
Safa, I
Herrera, SES
Sandrock, A
Sandroos, J
Santander, M
Sarkar, S
Satalecka, K
Schaufel, M
Schlunder, P
Schmidt, T
Schneider, A
Schneider, J
Schöneberg, S
Schumacher, L
Sclafani, S
Seckel, D
Seunarine, S
Soedingrekso, J
Soldin, D
Song, M
Spiczak, GM
Spiering, C
Stachurska, J
Stamatikos, M
Stanev, T
Stasik, A
Stein, R
Stettner, J
Steuer, A
Stezelberger, T
Stokstad, RG
Stößl, A
Strotjohann, NL
Stuttard, T
Sullivan, GW
Sutherland, M
Taboada, I
Tenholt, F
Ter-Antonyan, S
Terliuk, A
Tilav, S
Tobin, MN
Tönnis, C
Toscano, S
Tosi, D
Tselengidou, M
Tung, CF
Turcati, A
Turcotte, R
Turley, CF
Ty, B
Unger, E
Elorrieta, MAU
Usner, M
Vandenbroucke, J
Driessche, WV
Eijk, DV
Eijndhoven, NV
Vanheule, S
Santen, JV
Vraeghe, M
Walck, C
Wallace, A
Wallraff, M
Wandler, FD
Wandkowsky, N
Watson, TB
Weaver, C
Weiss, MJ
Wendt, C
Werthebach, J
Westerhoff, S
Whelan, BJ
Whitehorn, N
Wiebe, K
Wiebusch, CH
Wille, L
Williams, DR
Wills, L
Wolf, M
Wood, J
Wood, TR
Woolsey, E
Woschnagg, K
Wrede, G
Xu, DL
Xu, XW
Xu, Y
Yanez, JP
Yodh, G
Yoshida, S
Yuan, T
author_sort IceCube Collaboration
collection OXFORD
description The IceCube Collaboration has observed a highenergy astrophysical neutrino flux and recently found evidence for neutrino emission from the blazar TXS 0506+056. These results open a new window into the high-energy universe. However, the source or sources of most of the observed flux of astrophysical neutrinos remains uncertain. Here, a search for steady point-like neutrino sources is performed using an unbinned likelihood analysis. The method searches for a spatial accumulation of muon-neutrino events using the very high-statistics sample of about 497,000 neutrinos recorded by IceCube between 2009 and 2017. The median angular resolution is ∼ 1◦ at 1 TeV and improves to ∼ 0.3◦ for neutrinos with an energy of 1 PeV. Compared to previous analyses, this search is optimized for point-like neutrino emission with the same flux-characteristics as the observed astrophysical muon-neutrino flux and introduces an improved event-reconstruction and parametrization of the background. The result is an improvement in sensitivity to the muon-neutrino flux compared to the previous analysis of ∼ 35% assuming an E−2 spectrum. The sensitivity on the muon-neutrino flux is at a level of E2dN/dE = 3 · 10−13 TeV cm−2 s−1. No new evidence for neutrino sources is found in a full sky scan and in an a priori candidate source list that is motivated by gamma-ray observations. Furthermore, no significant excesses above background are found from populations of sub-threshold sources. The implications of the non-observation for potential source classes are discussed.
first_indexed 2024-03-06T23:35:34Z
format Journal article
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institution University of Oxford
last_indexed 2024-03-06T23:35:34Z
publishDate 2019
publisher Springer Berlin Heidelberg
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spelling oxford-uuid:6d88ed33-c42f-4f2b-9ab6-a0d5840c83f12022-03-26T19:19:17ZSearch for steady point-like sources in the astrophysical muon neutrino flux with 8 years of IceCube dataJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:6d88ed33-c42f-4f2b-9ab6-a0d5840c83f1Symplectic Elements at OxfordSpringer Berlin Heidelberg2019IceCube CollaborationAartsen, MGAckermann, MAdams, JAguilar, JAAhlers, MAhrens, MAltmann, DAndeen, KAnderson, TAnsseau, IAnton, GArgüelles, CAuffenberg, JAxani, SBackes, PBagherpour, HBai, XBarbano, ABarron, JPBarwick, SWBaum, VBay, RBeatty, JJTjus, JBBecker, K-HBenzvi, SBerley, DBernardini, EBesson, DZBinder, GBindig, DBlaufuss, EBlot, SBohm, CBörner, MBos, FBöser, SBotner, OBourbeau, EBourbeau, JBradascio, FBraun, JBretz, H-PBron, SBrostean-Kaiser, JBurgman, ABusse, RSCarver, TChen, CCheung, EChirkin, DClark, KClassen, LCollin, GHConrad, JMCoppin, PCorrea, PCowen, DFCross, RDave, PDay, MAndré, JPAMDClercq, CDDelaunay, JJDembinski, HDeoskar, KRidder, SDDesiati, PVries, KDDWasseige, GDWith, MDDeyoung, TDíaz-Vélez, JCDujmovic, HDunkman, MDvorak, EEberhardt, BEhrhardt, TEichmann, BEller, PEvenson, PAFahey, SFazely, ARFelde, JFilimonov, KFinley, CFranckowiak, AFriedman, EFritz, AGaisser, TKGallagher, JGanster, EGarrappa, SGerhardt, LGhorbani, KGiang, WGlauch, TGlüsenkamp, TGoldschmidt, AGonzalez, JGGrant, DGriffith, ZHaack, CHallgren, AHalve, LHalzen, FHanson, KHebecker, DHeereman, DHelbing, KHellauer, RHickford, SHignight, JHill, GCHoffman, KDHoffmann, RHoinka, THokanson-Fasig, BHoshina, KHuang, FHuber, MHultqvist, KHünnefeld, MHussain, RIn, SIovine, NIshihara, AJacobi, EJaparidze, GSJeong, MJero, KJones, BJPKalaczynski, PKang, WKappes, AKappesser, DKarg, TKarle, AKatz, UKauer, MKeivani, AKelley, JLKheirandish, AKim, JKintscher, TKiryluk, JKittler, TKlein, SRKoirala, RKolanoski, HKöpke, LKopper, CKopper, SKoskinen, DJKowalski, MKrings, KKroll, MKrückl, GKunwar, SKurahashi, NKyriacou, ALabare, MLanfranchi, JLLarson, MJLauber, FLeonard, KLeuermann, MLiu, QRLohfink, EMariscal, CJLLu, LLünemann, JLuszczak, WMadsen, JMaggi, GMahn, KBMMakino, YMancina, SMariş, ICMaruyama, RMase, KMaunu, RMeagher, KMedici, MMeier, MMenne, TMerino, GMeures, TMiarecki, SMicallef, JMomenté, GMontaruli, TMoore, RWMoulai, MNagai, RNahnhauer, RNakarmi, PNaumann, UNeer, GNiederhausen, HNowicki, SCNygren, DRPollmann, AOOlivas, AO'Murchadha, AO'Sullivan, EPalczewski, TPandya, HPankova, DVPeiffer, PHeros, CPDLPieloth, DPinat, EPizzuto, APlum, MPrice, PBPrzybylski, GTRaab, CRaissi, ARameez, MRauch, LRawlins, KRea, ICReimann, RRelethford, BRenzi, GResconi, ERhode, WRichman, MRobertson, SRongen, MRott, CRuhe, TRyckbosch, DRysewyk, DSafa, IHerrera, SESSandrock, ASandroos, JSantander, MSarkar, SSatalecka, KSchaufel, MSchlunder, PSchmidt, TSchneider, ASchneider, JSchöneberg, SSchumacher, LSclafani, SSeckel, DSeunarine, SSoedingrekso, JSoldin, DSong, MSpiczak, GMSpiering, CStachurska, JStamatikos, MStanev, TStasik, AStein, RStettner, JSteuer, AStezelberger, TStokstad, RGStößl, AStrotjohann, NLStuttard, TSullivan, GWSutherland, MTaboada, ITenholt, FTer-Antonyan, STerliuk, ATilav, STobin, MNTönnis, CToscano, STosi, DTselengidou, MTung, CFTurcati, ATurcotte, RTurley, CFTy, BUnger, EElorrieta, MAUUsner, MVandenbroucke, JDriessche, WVEijk, DVEijndhoven, NVVanheule, SSanten, JVVraeghe, MWalck, CWallace, AWallraff, MWandler, FDWandkowsky, NWatson, TBWeaver, CWeiss, MJWendt, CWerthebach, JWesterhoff, SWhelan, BJWhitehorn, NWiebe, KWiebusch, CHWille, LWilliams, DRWills, LWolf, MWood, JWood, TRWoolsey, EWoschnagg, KWrede, GXu, DLXu, XWXu, YYanez, JPYodh, GYoshida, SYuan, TThe IceCube Collaboration has observed a highenergy astrophysical neutrino flux and recently found evidence for neutrino emission from the blazar TXS 0506+056. These results open a new window into the high-energy universe. However, the source or sources of most of the observed flux of astrophysical neutrinos remains uncertain. Here, a search for steady point-like neutrino sources is performed using an unbinned likelihood analysis. The method searches for a spatial accumulation of muon-neutrino events using the very high-statistics sample of about 497,000 neutrinos recorded by IceCube between 2009 and 2017. The median angular resolution is ∼ 1◦ at 1 TeV and improves to ∼ 0.3◦ for neutrinos with an energy of 1 PeV. Compared to previous analyses, this search is optimized for point-like neutrino emission with the same flux-characteristics as the observed astrophysical muon-neutrino flux and introduces an improved event-reconstruction and parametrization of the background. The result is an improvement in sensitivity to the muon-neutrino flux compared to the previous analysis of ∼ 35% assuming an E−2 spectrum. The sensitivity on the muon-neutrino flux is at a level of E2dN/dE = 3 · 10−13 TeV cm−2 s−1. No new evidence for neutrino sources is found in a full sky scan and in an a priori candidate source list that is motivated by gamma-ray observations. Furthermore, no significant excesses above background are found from populations of sub-threshold sources. The implications of the non-observation for potential source classes are discussed.
spellingShingle IceCube Collaboration
Aartsen, MG
Ackermann, M
Adams, J
Aguilar, JA
Ahlers, M
Ahrens, M
Altmann, D
Andeen, K
Anderson, T
Ansseau, I
Anton, G
Argüelles, C
Auffenberg, J
Axani, S
Backes, P
Bagherpour, H
Bai, X
Barbano, A
Barron, JP
Barwick, SW
Baum, V
Bay, R
Beatty, JJ
Tjus, JB
Becker, K-H
Benzvi, S
Berley, D
Bernardini, E
Besson, DZ
Binder, G
Bindig, D
Blaufuss, E
Blot, S
Bohm, C
Börner, M
Bos, F
Böser, S
Botner, O
Bourbeau, E
Bourbeau, J
Bradascio, F
Braun, J
Bretz, H-P
Bron, S
Brostean-Kaiser, J
Burgman, A
Busse, RS
Carver, T
Chen, C
Cheung, E
Chirkin, D
Clark, K
Classen, L
Collin, GH
Conrad, JM
Coppin, P
Correa, P
Cowen, DF
Cross, R
Dave, P
Day, M
André, JPAMD
Clercq, CD
Delaunay, JJ
Dembinski, H
Deoskar, K
Ridder, SD
Desiati, P
Vries, KDD
Wasseige, GD
With, MD
Deyoung, T
Díaz-Vélez, JC
Dujmovic, H
Dunkman, M
Dvorak, E
Eberhardt, B
Ehrhardt, T
Eichmann, B
Eller, P
Evenson, PA
Fahey, S
Fazely, AR
Felde, J
Filimonov, K
Finley, C
Franckowiak, A
Friedman, E
Fritz, A
Gaisser, TK
Gallagher, J
Ganster, E
Garrappa, S
Gerhardt, L
Ghorbani, K
Giang, W
Glauch, T
Glüsenkamp, T
Goldschmidt, A
Gonzalez, JG
Grant, D
Griffith, Z
Haack, C
Hallgren, A
Halve, L
Halzen, F
Hanson, K
Hebecker, D
Heereman, D
Helbing, K
Hellauer, R
Hickford, S
Hignight, J
Hill, GC
Hoffman, KD
Hoffmann, R
Hoinka, T
Hokanson-Fasig, B
Hoshina, K
Huang, F
Huber, M
Hultqvist, K
Hünnefeld, M
Hussain, R
In, S
Iovine, N
Ishihara, A
Jacobi, E
Japaridze, GS
Jeong, M
Jero, K
Jones, BJP
Kalaczynski, P
Kang, W
Kappes, A
Kappesser, D
Karg, T
Karle, A
Katz, U
Kauer, M
Keivani, A
Kelley, JL
Kheirandish, A
Kim, J
Kintscher, T
Kiryluk, J
Kittler, T
Klein, SR
Koirala, R
Kolanoski, H
Köpke, L
Kopper, C
Kopper, S
Koskinen, DJ
Kowalski, M
Krings, K
Kroll, M
Krückl, G
Kunwar, S
Kurahashi, N
Kyriacou, A
Labare, M
Lanfranchi, JL
Larson, MJ
Lauber, F
Leonard, K
Leuermann, M
Liu, QR
Lohfink, E
Mariscal, CJL
Lu, L
Lünemann, J
Luszczak, W
Madsen, J
Maggi, G
Mahn, KBM
Makino, Y
Mancina, S
Mariş, IC
Maruyama, R
Mase, K
Maunu, R
Meagher, K
Medici, M
Meier, M
Menne, T
Merino, G
Meures, T
Miarecki, S
Micallef, J
Momenté, G
Montaruli, T
Moore, RW
Moulai, M
Nagai, R
Nahnhauer, R
Nakarmi, P
Naumann, U
Neer, G
Niederhausen, H
Nowicki, SC
Nygren, DR
Pollmann, AO
Olivas, A
O'Murchadha, A
O'Sullivan, E
Palczewski, T
Pandya, H
Pankova, DV
Peiffer, P
Heros, CPDL
Pieloth, D
Pinat, E
Pizzuto, A
Plum, M
Price, PB
Przybylski, GT
Raab, C
Raissi, A
Rameez, M
Rauch, L
Rawlins, K
Rea, IC
Reimann, R
Relethford, B
Renzi, G
Resconi, E
Rhode, W
Richman, M
Robertson, S
Rongen, M
Rott, C
Ruhe, T
Ryckbosch, D
Rysewyk, D
Safa, I
Herrera, SES
Sandrock, A
Sandroos, J
Santander, M
Sarkar, S
Satalecka, K
Schaufel, M
Schlunder, P
Schmidt, T
Schneider, A
Schneider, J
Schöneberg, S
Schumacher, L
Sclafani, S
Seckel, D
Seunarine, S
Soedingrekso, J
Soldin, D
Song, M
Spiczak, GM
Spiering, C
Stachurska, J
Stamatikos, M
Stanev, T
Stasik, A
Stein, R
Stettner, J
Steuer, A
Stezelberger, T
Stokstad, RG
Stößl, A
Strotjohann, NL
Stuttard, T
Sullivan, GW
Sutherland, M
Taboada, I
Tenholt, F
Ter-Antonyan, S
Terliuk, A
Tilav, S
Tobin, MN
Tönnis, C
Toscano, S
Tosi, D
Tselengidou, M
Tung, CF
Turcati, A
Turcotte, R
Turley, CF
Ty, B
Unger, E
Elorrieta, MAU
Usner, M
Vandenbroucke, J
Driessche, WV
Eijk, DV
Eijndhoven, NV
Vanheule, S
Santen, JV
Vraeghe, M
Walck, C
Wallace, A
Wallraff, M
Wandler, FD
Wandkowsky, N
Watson, TB
Weaver, C
Weiss, MJ
Wendt, C
Werthebach, J
Westerhoff, S
Whelan, BJ
Whitehorn, N
Wiebe, K
Wiebusch, CH
Wille, L
Williams, DR
Wills, L
Wolf, M
Wood, J
Wood, TR
Woolsey, E
Woschnagg, K
Wrede, G
Xu, DL
Xu, XW
Xu, Y
Yanez, JP
Yodh, G
Yoshida, S
Yuan, T
Search for steady point-like sources in the astrophysical muon neutrino flux with 8 years of IceCube data
title Search for steady point-like sources in the astrophysical muon neutrino flux with 8 years of IceCube data
title_full Search for steady point-like sources in the astrophysical muon neutrino flux with 8 years of IceCube data
title_fullStr Search for steady point-like sources in the astrophysical muon neutrino flux with 8 years of IceCube data
title_full_unstemmed Search for steady point-like sources in the astrophysical muon neutrino flux with 8 years of IceCube data
title_short Search for steady point-like sources in the astrophysical muon neutrino flux with 8 years of IceCube data
title_sort search for steady point like sources in the astrophysical muon neutrino flux with 8 years of icecube data
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AT yanezjp searchforsteadypointlikesourcesintheastrophysicalmuonneutrinofluxwith8yearsoficecubedata
AT yodhg searchforsteadypointlikesourcesintheastrophysicalmuonneutrinofluxwith8yearsoficecubedata
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