Searches for small-scale anisotropies from neutrino point sources with three years of IceCube data

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Aartsen, M. G. (author)

Searches for small-scale anisotropies from neutrino point sources with three years of IceCube data

Article/chapterEnglish2015

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Elsevier BV,2015
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LIBRIS-ID:oai:DiVA.org:uu-252156
https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-252156URI
https://doi.org/10.1016/j.astropartphys.2015.01.001DOI
https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-131411URI

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Language:English
Summary in:English

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SwePubSwePub

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Subject category:art swepub-publicationtype

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Recently, IceCube found evidence for a diffuse signal of astrophysical neutrinos in an energy range of similar to 60 TeV to the PeV-scale [1]. The origin of those events, being a key to understanding the origin of cosmic rays, is still an unsolved question. So far, analyses have not succeeded to resolve the diffuse signal into point-like sources. Searches including a maximum-likelihood-ratio test, based on the reconstructed directions and energies of the detected down- and up-going neutrino candidates, were also performed on IceCube data leading to the exclusion of bright point sources. In this paper, we present two methods to search for faint neutrino point sources in three years of IceCube data, taken between 2008 and 2011. The first method is an autocorrelation test, applied separately to the northern and southern sky. The second method is a multipole analysis, which expands the measured data in the northern hemisphere into spherical harmonics and uses the resulting expansion coefficients to separate signal from background. With both methods, the results are consistent with the background expectation with a slightly more sparse spatial distribution, corresponding to an underfluctuation. Depending on the assumed number of sources, the resulting upper limit on the flux per source in the northern hemisphere for an E-2 energy spectrum ranges from similar to 1.5. 10(-8) GeV/cm(2) s(-1), in the case of one assumed source, to similar to 4. 10(-10) GeV/cm(2) s(-1), in the case of 3500 assumed sources.

Subject headings and genre

NATURVETENSKAP Fysik hsv//swe
NATURAL SCIENCES Physical Sciences hsv//eng
NATURVETENSKAP Fysik Astronomi, astrofysik och kosmologi hsv//swe
NATURAL SCIENCES Physical Sciences Astronomy, Astrophysics and Cosmology hsv//eng
Extraterrestrial neutrinos
Astrophysical neutrinos
Point sources
IceCube
2pt-correlation
Multipole analysis

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Ackermann, M. (author)
Adams, J. (author)
Aguilar, J. A. (author)
Ahrens, MaryonStockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC)(Swepub:su)main1402 (author)
Ahrens, M. (author)
Altmann, D. (author)
Anderson, T. (author)
Arguelles, C. (author)
Arlen, T. C. (author)
Auffenberg, J. (author)
Bai, X. (author)
Barwick, S. W. (author)
Baum, V. (author)
Beatty, J. J. (author)
Tjus, J. Becker (author)
Hultqvist, KlasStockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC)(Swepub:su)klas (author)
BenZvi, S. (author)
Berghaus, P. (author)
Berley, D. (author)
Bernardini, E. (author)
Bernhard, A. (author)
Besson, D. Z. (author)
Binder, G. (author)
Bindig, D. (author)
Bissok, M. (author)
Blaufuss, E. (author)
Blumenthal, J. (author)
Boersma, David J.Uppsala universitet,Högenergifysik(Swepub:uu)davbo440 (author)
Bohm, ChristianStockholms universitet,Fysikum(Swepub:su)bohm (author)
Bos, F. (author)
Bose, D. (author)
Boeser, S. (author)
Botner, OlgaUppsala universitet,Högenergifysik(Swepub:uu)olgabotn (author)
Brayeur, L. (author)
Bretz, H. -P (author)
Brown, A. M. (author)
Casey, J. (author)
Casier, M. (author)
Cheung, E. (author)
Chirkin, D. (author)
Christov, A. (author)
Christy, B. (author)
Clark, K. (author)
Classen, L. (author)
Cleverinann, F. (author)
Coenders, S. (author)
Cowen, D. F. (author)
Silva, A. H. Cruz (author)
Danninger, MatthiasStockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC)(Swepub:su)danning (author)
Daughhetee, J. (author)
Davis, J. C. (author)
Day, M. (author)
de Andre, J. P. A. M. (author)
De Clercq, C. (author)
De Ridder, S. (author)
Desiati, P. (author)
de Vries, K. D. (author)
de With, M. (author)
DeYoung, T. (author)
Diaz-Velez, J. C. (author)
Dunkman, M. (author)
Eagan, R. (author)
Eberhardt, B. (author)
Eichmann, B. (author)
Eisch, J. (author)
Euler, SebastianUppsala universitet,Högenergifysik(Swepub:uu)sebeu179 (author)
Evenson, P. A. (author)
Fadiran, O. (author)
Fazely, A. R. (author)
Fedynitch, A. (author)
Feintzeig, J. (author)
Felde, J. (author)
Feusels, T. (author)
Filimonov, K. (author)
Finley, ChadStockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC)(Swepub:su)cfinl (author)
Fischer-Wasels, T. (author)
Flis, SamuelStockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC)(Swepub:su)safl7086 (author)
Franckowiak, A. (author)
Frantzen, K. (author)
Fuchs, T. (author)
Gaisser, T. K. (author)
Gaior, R. (author)
Gallagher, J. (author)
Gerhardt, L. (author)
Gier, D. (author)
Gladstone, L. (author)
Gluesenkamp, T. (author)
Goldschmidt, A. (author)
Golup, G. (author)
Gonzalez, J. G. (author)
Goodman, J. A. (author)
Gora, D. (author)
Grant, D. (author)
Gretskov, P. (author)
Groh, J. C. (author)
Gross, A. (author)
Ha, C. (author)
Walck, ChristianStockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC)(Swepub:su)walck (author)
Ismail, A. Haj (author)
Hallen, P. (author)
Hallgren, AllanUppsala universitet,Högenergifysik(Swepub:uu)allahall (author)
Halzen, F. (author)
Hanson, K. (author)
Hebecker, D. (author)
Heereman, D. (author)
Heinen, D. (author)
Helbing, K. (author)
Hellauer, R. (author)
Hellwig, D. (author)
Hickford, S. (author)
Hill, G. C. (author)
Hoffman, K. D. (author)
Hoffmann, R. (author)
Homeier, A. (author)
Hoshina, K. (author)
Huang, F. (author)
Huelsnitz, W. (author)
Hulth, Per OlofStockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC)(Swepub:su)hulth (author)
Hultqvist, K. (author)
Hussain, S. (author)
Ishihara, A. (author)
Jacobi, E. (author)
Jacobsen, J. (author)
Jagielski, K. (author)
Japaridze, G. S. (author)
Jero, K. (author)
Jlelati, O. (author)
Jurkovic, M. (author)
Kaminsky, B. (author)
Kappes, A. (author)
Karg, T. (author)
Karle, A. (author)
Kauer, M. (author)
Kelley, J. L. (author)
Kheirandish, A. (author)
Kiryluk, J. (author)
Klaes, J. (author)
Klein, S. R. (author)
Koehne, J. -H (author)
Kohnen, G. (author)
Kolanoski, H. (author)
Koob, A. (author)
Koepke, L. (author)
Kopper, C. (author)
Kopper, S. (author)
Koskinen, D. J. (author)
Kowalski, M. (author)
Kriesten, A. (author)
Krings, K. (author)
Kroll, G. (author)
Kroll, M. (author)
Kunnen, J. (author)
Kurahashi, N. (author)
Kuwabara, T. (author)
Labare, M. (author)
Larsen, D. T. (author)
Larson, M. J. (author)
Lesiak-Bzdak, M. (author)
Leuermann, M. (author)
Leute, J. (author)
Luenemann, J. (author)
Madsen, J. (author)
Maggi, G. (author)
Maruyama, R. (author)
Mase, K. (author)
Matis, H. S. (author)
Maunu, R. (author)
McNally, F. (author)
Meagher, K. (author)
Medici, M. (author)
Meli, A. (author)
Meures, T. (author)
Miarecki, S. (author)
Middell, E. (author)
Middlemas, E. (author)
Milke, N. (author)
Miller, J. (author)
Mohrmann, L. (author)
Montaruli, T. (author)
Morse, R. (author)
Nahnhauer, R. (author)
Naumann, U. (author)
Niederhausen, H. (author)
Nowicki, S. C. (author)
Nygren, D. R. (author)
Obertacke, A. (author)
Odrowski, S. (author)
Olivas, A. (author)
Omairat, A. (author)
O'Murchadha, A. (author)
Palczewski, T. (author)
Paul, L. (author)
Penek, Oe. (author)
Pepper, J. A. (author)
de los Heros, Carlos PerezUppsala universitet,Högenergifysik(Swepub:uu)capedlhe (author)
Pfendner, C. (author)
Pieloth, D. (author)
Pinat, E. (author)
Posselt, J. (author)
Price, P. B. (author)
Przybylski, G. T. (author)
Puetz, J. (author)
Quinnan, M. (author)
Raedel, L. (author)
Rameez, M. (author)
Rawlins, K. (author)
Redl, P. (author)
Rees, I. (author)
Reimann, R. (author)
Relich, M. (author)
Resconi, E. (author)
Rhode, W. (author)
Richman, M. (author)
Riedel, B. (author)
Robertson, S. (author)
Rodrigues, Jp. (author)
Rongen, M. (author)
Rott, C. (author)
Ruhe, T. (author)
Ruzybayev, B. (author)
Ryckbosch, D. (author)
Saba, S. M. (author)
Sander, H. -G (author)
Sandroos, J. (author)
Santander, M. (author)
Sarkar, S. (author)
Schatto, K. (author)
Scheriau, F. (author)
Schmidt, T. (author)
Schmitz, M. (author)
Schoenen, S. (author)
Schoeneberg, S. (author)
Schoenwald, A. (author)
Schukraft, A. (author)
Schulte, L. (author)
Schulz, O. (author)
Seckel, D. (author)
Sestayo, Y. (author)
Seunarine, S. (author)
Shanidze, R. (author)
Wolf, MartinStockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC)(Swepub:su)mwolf (author)
Soldin, D. (author)
Spiczak, G. M. (author)
Spiering, C. (author)
Stamatikos, M. (author)
Stanev, T. (author)
Stanisha, N. A. (author)
Stasik, A. (author)
Stezelberger, T. (author)
Stokstad, R. G. (author)
Stoessl, A. (author)
Strahler, E. A. (author)
Ström, RickardUppsala universitet,Högenergifysik(Swepub:uu)ricst605 (author)
Strotjohann, N. L. (author)
Sullivan, G. W. (author)
Taavola, HenricUppsala universitet,Högenergifysik(Swepub:uu)henta640 (author)
Taboada, I. (author)
Tamburro, A. (author)
Tepe, A. (author)
Ter-Antonyan, S. (author)
Terliuk, A. (author)
Tesic, G. (author)
Tilav, S. (author)
Toale, P. A. (author)
Tobin, M. N. (author)
Tosi, D. (author)
Tselengidou, M. (author)
Unger, E. (author)
Usner, M. (author)
Vallecorsa, S. (author)
van Eijndhoven, N. (author)
Vandenbroucke, J. (author)
van Santen, J. (author)
Vehring, M. (author)
Voge, M. (author)
Vraeghe, M. (author)
Walck, C. (author)
Wallraff, M. (author)
Weaver, Ch. (author)
Wellons, M. (author)
Wendt, C. (author)
Westerhoff, S. (author)
Whelan, B. J. (author)
Whitehorn, N. (author)
Wichary, C. (author)
Wiebe, K. (author)
Wiebusch, C. H. (author)
Williams, D. R. (author)
Wissing, H. (author)
Wolf, M. (author)
Wood, T. R. (author)
Woschnagg, K. (author)
Xu, D. L. (author)
Xu, X. W. (author)
Yanez, J. P. (author)
Yodh, G. (author)
Yoshida, S. (author)
Zarzhitsky, P. (author)
Ziemann, J. (author)
Zierke, S. (author)
Zoll, MarcelStockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC)(Swepub:su)mazo7883 (author)
Stockholms universitetFysikum (creator_code:org_t)

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By the author/editor: Aartsen, M. G.; Ackermann, M.; Adams, J.; Aguilar, J. A.; Ahrens, Maryon; Ahrens, M.; show more...; Altmann, D.; Anderson, T.; Arguelles, C.; Arlen, T. C.; Auffenberg, J.; Bai, X.; Barwick, S. W.; Baum, V.; Beatty, J. J.; Tjus, J. Becker; Hultqvist, Klas; BenZvi, S.; Berghaus, P.; Berley, D.; Bernardini, E.; Bernhard, A.; Besson, D. Z.; Binder, G.; Bindig, D.; Bissok, M.; Blaufuss, E.; Blumenthal, J.; Boersma, David J ...; Bohm, Christian; Bos, F.; Bose, D.; Boeser, S.; Botner, Olga; Brayeur, L.; Bretz, H. -P; Brown, A. M.; Casey, J.; Casier, M.; Cheung, E.; Chirkin, D.; Christov, A.; Christy, B.; Clark, K.; Classen, L.; Cleverinann, F.; Coenders, S.; Cowen, D. F.; Silva, A. H. Cru ...; Danninger, Matth ...; Daughhetee, J.; Davis, J. C.; Day, M.; de Andre, J. P. ...; De Clercq, C.; De Ridder, S.; Desiati, P.; de Vries, K. D.; de With, M.; DeYoung, T.; Diaz-Velez, J. C ...; Dunkman, M.; Eagan, R.; Eberhardt, B.; Eichmann, B.; Eisch, J.; Euler, Sebastian; Evenson, P. A.; Fadiran, O.; Fazely, A. R.; Fedynitch, A.; Feintzeig, J.; Felde, J.; Feusels, T.; Filimonov, K.; Finley, Chad; Fischer-Wasels, ...; Flis, Samuel; Franckowiak, A.; Frantzen, K.; Fuchs, T.; Gaisser, T. K.; Gaior, R.; Gallagher, J.; Gerhardt, L.; Gier, D.; Gladstone, L.; Gluesenkamp, T.; Goldschmidt, A.; Golup, G.; Gonzalez, J. G.; Goodman, J. A.; Gora, D.; Grant, D.; Gretskov, P.; Groh, J. C.; Gross, A.; Ha, C.; Walck, Christian; Ismail, A. Haj; Hallen, P.; Hallgren, Allan; Halzen, F.; Hanson, K.; Hebecker, D.; Heereman, D.; Heinen, D.; Helbing, K.; Hellauer, R.; Hellwig, D.; Hickford, S.; Hill, G. C.; Hoffman, K. D.; Hoffmann, R.; Homeier, A.; Hoshina, K.; Huang, F.; Huelsnitz, W.; Hulth, Per Olof; Hultqvist, K.; Hussain, S.; Ishihara, A.; Jacobi, E.; Jacobsen, J.; Jagielski, K.; Japaridze, G. S.; Jero, K.; Jlelati, O.; Jurkovic, M.; Kaminsky, B.; Kappes, A.; Karg, T.; Karle, A.; Kauer, M.; Kelley, J. L.; Kheirandish, A.; Kiryluk, J.; Klaes, J.; Klein, S. R.; Koehne, J. -H; Kohnen, G.; Kolanoski, H.; Koob, A.; Koepke, L.; Kopper, C.; Kopper, S.; Koskinen, D. J.; Kowalski, M.; Kriesten, A.; Krings, K.; Kroll, G.; Kroll, M.; Kunnen, J.; Kurahashi, N.; Kuwabara, T.; Labare, M.; Larsen, D. T.; Larson, M. J.; Lesiak-Bzdak, M.; Leuermann, M.; Leute, J.; Luenemann, J.; Madsen, J.; Maggi, G.; Maruyama, R.; Mase, K.; Matis, H. S.; Maunu, R.; McNally, F.; Meagher, K.; Medici, M.; Meli, A.; Meures, T.; Miarecki, S.; Middell, E.; Middlemas, E.; Milke, N.; Miller, J.; Mohrmann, L.; Montaruli, T.; Morse, R.; Nahnhauer, R.; Naumann, U.; Niederhausen, H.; Nowicki, S. C.; Nygren, D. R.; Obertacke, A.; Odrowski, S.; Olivas, A.; Omairat, A.; O'Murchadha, A.; Palczewski, T.; Paul, L.; Penek, Oe.; Pepper, J. A.; de los Heros, Ca ...; Pfendner, C.; Pieloth, D.; Pinat, E.; Posselt, J.; Price, P. B.; Przybylski, G. T ...; Puetz, J.; Quinnan, M.; Raedel, L.; Rameez, M.; Rawlins, K.; Redl, P.; Rees, I.; Reimann, R.; Relich, M.; Resconi, E.; Rhode, W.; Richman, M.; Riedel, B.; Robertson, S.; Rodrigues, Jp.; Rongen, M.; Rott, C.; Ruhe, T.; Ruzybayev, B.; Ryckbosch, D.; Saba, S. M.; Sander, H. -G; Sandroos, J.; Santander, M.; Sarkar, S.; Schatto, K.; Scheriau, F.; Schmidt, T.; Schmitz, M.; Schoenen, S.; Schoeneberg, S.; Schoenwald, A.; Schukraft, A.; Schulte, L.; Schulz, O.; Seckel, D.; Sestayo, Y.; Seunarine, S.; Shanidze, R.; Wolf, Martin; Soldin, D.; Spiczak, G. M.; Spiering, C.; Stamatikos, M.; Stanev, T.; Stanisha, N. A.; Stasik, A.; Stezelberger, T.; Stokstad, R. G.; Stoessl, A.; Strahler, E. A.; Ström, Rickard; Strotjohann, N. ...; Sullivan, G. W.; Taavola, Henric; Taboada, I.; Tamburro, A.; Tepe, A.; Ter-Antonyan, S.; Terliuk, A.; Tesic, G.; Tilav, S.; Toale, P. A.; Tobin, M. N.; Tosi, D.; Tselengidou, M.; Unger, E.; Usner, M.; Vallecorsa, S.; van Eijndhoven, ...; Vandenbroucke, J ...; van Santen, J.; Vehring, M.; Voge, M.; Vraeghe, M.; Walck, C.; Wallraff, M.; Weaver, Ch.; Wellons, M.; Wendt, C.; Westerhoff, S.; Whelan, B. J.; Whitehorn, N.; Wichary, C.; Wiebe, K.; Wiebusch, C. H.; Williams, D. R.; Wissing, H.; Wolf, M.; Wood, T. R.; Woschnagg, K.; Xu, D. L.; Xu, X. W.; Yanez, J. P.; Yodh, G.; Yoshida, S.; Zarzhitsky, P.; Ziemann, J.; Zierke, S.; Zoll, Marcel; show less...

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