SEARCH FOR SOURCES OF HIGH-ENERGY NEUTRONS WITH FOUR YEARS OF DATA FROM THE ICETOP DETECTOR
IceTop is an air-shower array located on the Antarctic ice sheet at the geographic South Pole. IceTop can detect an astrophysical flux of neutrons from Galactic sources as an excess of cosmic-ray air showers arriving from the source direction. Neutrons are undeflected by the Galactic magnetic field...
Published in: | The Astrophysical Journal |
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Format: | Article in Journal/Newspaper |
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eScholarship, University of California
2016
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Online Access: | https://escholarship.org/uc/item/8st4x6b6 https://escholarship.org/content/qt8st4x6b6/qt8st4x6b6.pdf https://doi.org/10.3847/0004-637x/830/2/129 |
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ftcdlib:oai:escholarship.org:ark:/13030/qt8st4x6b6 2024-09-15T17:46:53+00:00 SEARCH FOR SOURCES OF HIGH-ENERGY NEUTRONS WITH FOUR YEARS OF DATA FROM THE ICETOP DETECTOR Aartsen, MG Abraham, K Ackermann, M Adams, J Aguilar, JA Ahlers, M Ahrens, M Altmann, D Andeen, K Anderson, T Ansseau, I Anton, G Archinger, M Argüelles, C Auffenberg, J Axani, S Bai, X Barwick, SW Baum, V Bay, R Beatty, JJ Tjus, J Becker Becker, K-H BenZvi, S Berghaus, P Berley, D Bernardini, E Bernhard, A Besson, DZ Binder, G Bindig, D Bissok, M Blaufuss, E Blot, S Bohm, C Börner, M Bos, F Bose, D Böser, S Botner, O Braun, J Brayeur, L Bretz, H-P Burgman, A Carver, T 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 del Pino Rosendo, E 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 Euler, S Evenson, PA Fahey, S Fazely, AR Feintzeig, J Felde, J Filimonov, K Finley, C Flis, S Fösig, C-C Franckowiak, A Friedman, E Fuchs, T Gaisser, TK Gallagher, J Gerhardt, L Ghorbani, K Giang, W Gladstone, L Glagla, M Glüsenkamp, T Goldschmidt, A Golup, G Gonzalez, JG 129 2016-10-20 application/pdf https://escholarship.org/uc/item/8st4x6b6 https://escholarship.org/content/qt8st4x6b6/qt8st4x6b6.pdf https://doi.org/10.3847/0004-637x/830/2/129 unknown eScholarship, University of California qt8st4x6b6 https://escholarship.org/uc/item/8st4x6b6 https://escholarship.org/content/qt8st4x6b6/qt8st4x6b6.pdf doi:10.3847/0004-637x/830/2/129 public The Astrophysical Journal, vol 830, iss 2 Affordable and Clean Energy astroparticle physics cosmic rays methods: data analysis astro-ph.HE hep-ex Astronomical and Space Sciences Atomic Molecular Nuclear Particle and Plasma Physics Physical Chemistry (incl. Structural) Astronomy & Astrophysics article 2016 ftcdlib https://doi.org/10.3847/0004-637x/830/2/129 2024-06-28T06:28:20Z IceTop is an air-shower array located on the Antarctic ice sheet at the geographic South Pole. IceTop can detect an astrophysical flux of neutrons from Galactic sources as an excess of cosmic-ray air showers arriving from the source direction. Neutrons are undeflected by the Galactic magnetic field and can typically travel 10 (E/PeV) pc before decay. Two searches are performed using 4 yr of the IceTop data set to look for a statistically significant excess of events with energies above 10 PeV (1016 eV) arriving within a small solid angle. The all-sky search method covers from -90° to approximately -50° in declination. No significant excess is found. A targeted search is also performed, looking for significant correlation with candidate sources in different target sets. This search uses a higher-energy cut (100 PeV) since most target objects lie beyond 1 kpc. The target sets include pulsars with confirmed TeV energy photon fluxes and high-mass X-ray binaries. No significant correlation is found for any target set. Flux upper limits are determined for both searches, which can constrain Galactic neutron sources and production scenarios. Article in Journal/Newspaper Antarc* Antarctic Ice Sheet South pole South pole University of California: eScholarship The Astrophysical Journal 830 2 129 |
institution |
Open Polar |
collection |
University of California: eScholarship |
op_collection_id |
ftcdlib |
language |
unknown |
topic |
Affordable and Clean Energy astroparticle physics cosmic rays methods: data analysis astro-ph.HE hep-ex Astronomical and Space Sciences Atomic Molecular Nuclear Particle and Plasma Physics Physical Chemistry (incl. Structural) Astronomy & Astrophysics |
spellingShingle |
Affordable and Clean Energy astroparticle physics cosmic rays methods: data analysis astro-ph.HE hep-ex Astronomical and Space Sciences Atomic Molecular Nuclear Particle and Plasma Physics Physical Chemistry (incl. Structural) Astronomy & Astrophysics Aartsen, MG Abraham, K Ackermann, M Adams, J Aguilar, JA Ahlers, M Ahrens, M Altmann, D Andeen, K Anderson, T Ansseau, I Anton, G Archinger, M Argüelles, C Auffenberg, J Axani, S Bai, X Barwick, SW Baum, V Bay, R Beatty, JJ Tjus, J Becker Becker, K-H BenZvi, S Berghaus, P Berley, D Bernardini, E Bernhard, A Besson, DZ Binder, G Bindig, D Bissok, M Blaufuss, E Blot, S Bohm, C Börner, M Bos, F Bose, D Böser, S Botner, O Braun, J Brayeur, L Bretz, H-P Burgman, A Carver, T 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 del Pino Rosendo, E 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 Euler, S Evenson, PA Fahey, S Fazely, AR Feintzeig, J Felde, J Filimonov, K Finley, C Flis, S Fösig, C-C Franckowiak, A Friedman, E Fuchs, T Gaisser, TK Gallagher, J Gerhardt, L Ghorbani, K Giang, W Gladstone, L Glagla, M Glüsenkamp, T Goldschmidt, A Golup, G Gonzalez, JG SEARCH FOR SOURCES OF HIGH-ENERGY NEUTRONS WITH FOUR YEARS OF DATA FROM THE ICETOP DETECTOR |
topic_facet |
Affordable and Clean Energy astroparticle physics cosmic rays methods: data analysis astro-ph.HE hep-ex Astronomical and Space Sciences Atomic Molecular Nuclear Particle and Plasma Physics Physical Chemistry (incl. Structural) Astronomy & Astrophysics |
description |
IceTop is an air-shower array located on the Antarctic ice sheet at the geographic South Pole. IceTop can detect an astrophysical flux of neutrons from Galactic sources as an excess of cosmic-ray air showers arriving from the source direction. Neutrons are undeflected by the Galactic magnetic field and can typically travel 10 (E/PeV) pc before decay. Two searches are performed using 4 yr of the IceTop data set to look for a statistically significant excess of events with energies above 10 PeV (1016 eV) arriving within a small solid angle. The all-sky search method covers from -90° to approximately -50° in declination. No significant excess is found. A targeted search is also performed, looking for significant correlation with candidate sources in different target sets. This search uses a higher-energy cut (100 PeV) since most target objects lie beyond 1 kpc. The target sets include pulsars with confirmed TeV energy photon fluxes and high-mass X-ray binaries. No significant correlation is found for any target set. Flux upper limits are determined for both searches, which can constrain Galactic neutron sources and production scenarios. |
format |
Article in Journal/Newspaper |
author |
Aartsen, MG Abraham, K Ackermann, M Adams, J Aguilar, JA Ahlers, M Ahrens, M Altmann, D Andeen, K Anderson, T Ansseau, I Anton, G Archinger, M Argüelles, C Auffenberg, J Axani, S Bai, X Barwick, SW Baum, V Bay, R Beatty, JJ Tjus, J Becker Becker, K-H BenZvi, S Berghaus, P Berley, D Bernardini, E Bernhard, A Besson, DZ Binder, G Bindig, D Bissok, M Blaufuss, E Blot, S Bohm, C Börner, M Bos, F Bose, D Böser, S Botner, O Braun, J Brayeur, L Bretz, H-P Burgman, A Carver, T 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 del Pino Rosendo, E 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 Euler, S Evenson, PA Fahey, S Fazely, AR Feintzeig, J Felde, J Filimonov, K Finley, C Flis, S Fösig, C-C Franckowiak, A Friedman, E Fuchs, T Gaisser, TK Gallagher, J Gerhardt, L Ghorbani, K Giang, W Gladstone, L Glagla, M Glüsenkamp, T Goldschmidt, A Golup, G Gonzalez, JG |
author_facet |
Aartsen, MG Abraham, K Ackermann, M Adams, J Aguilar, JA Ahlers, M Ahrens, M Altmann, D Andeen, K Anderson, T Ansseau, I Anton, G Archinger, M Argüelles, C Auffenberg, J Axani, S Bai, X Barwick, SW Baum, V Bay, R Beatty, JJ Tjus, J Becker Becker, K-H BenZvi, S Berghaus, P Berley, D Bernardini, E Bernhard, A Besson, DZ Binder, G Bindig, D Bissok, M Blaufuss, E Blot, S Bohm, C Börner, M Bos, F Bose, D Böser, S Botner, O Braun, J Brayeur, L Bretz, H-P Burgman, A Carver, T 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 del Pino Rosendo, E 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 Euler, S Evenson, PA Fahey, S Fazely, AR Feintzeig, J Felde, J Filimonov, K Finley, C Flis, S Fösig, C-C Franckowiak, A Friedman, E Fuchs, T Gaisser, TK Gallagher, J Gerhardt, L Ghorbani, K Giang, W Gladstone, L Glagla, M Glüsenkamp, T Goldschmidt, A Golup, G Gonzalez, JG |
author_sort |
Aartsen, MG |
title |
SEARCH FOR SOURCES OF HIGH-ENERGY NEUTRONS WITH FOUR YEARS OF DATA FROM THE ICETOP DETECTOR |
title_short |
SEARCH FOR SOURCES OF HIGH-ENERGY NEUTRONS WITH FOUR YEARS OF DATA FROM THE ICETOP DETECTOR |
title_full |
SEARCH FOR SOURCES OF HIGH-ENERGY NEUTRONS WITH FOUR YEARS OF DATA FROM THE ICETOP DETECTOR |
title_fullStr |
SEARCH FOR SOURCES OF HIGH-ENERGY NEUTRONS WITH FOUR YEARS OF DATA FROM THE ICETOP DETECTOR |
title_full_unstemmed |
SEARCH FOR SOURCES OF HIGH-ENERGY NEUTRONS WITH FOUR YEARS OF DATA FROM THE ICETOP DETECTOR |
title_sort |
search for sources of high-energy neutrons with four years of data from the icetop detector |
publisher |
eScholarship, University of California |
publishDate |
2016 |
url |
https://escholarship.org/uc/item/8st4x6b6 https://escholarship.org/content/qt8st4x6b6/qt8st4x6b6.pdf https://doi.org/10.3847/0004-637x/830/2/129 |
op_coverage |
129 |
genre |
Antarc* Antarctic Ice Sheet South pole South pole |
genre_facet |
Antarc* Antarctic Ice Sheet South pole South pole |
op_source |
The Astrophysical Journal, vol 830, iss 2 |
op_relation |
qt8st4x6b6 https://escholarship.org/uc/item/8st4x6b6 https://escholarship.org/content/qt8st4x6b6/qt8st4x6b6.pdf doi:10.3847/0004-637x/830/2/129 |
op_rights |
public |
op_doi |
https://doi.org/10.3847/0004-637x/830/2/129 |
container_title |
The Astrophysical Journal |
container_volume |
830 |
container_issue |
2 |
container_start_page |
129 |
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1810495314457526272 |