MEASUREMENT OF THE ANISOTROPY OF COSMIC-RAY ARRIVAL DIRECTIONS WITH ICECUBE
We report the first observation of an anisotropy in the arrival direction of cosmic rays with energies in the multi-TeV region in theSouthern sky using data from the IceCube detector. Between 2007 June and 2008 March, the partially deployed IceCube detector was operated in a configuration with 1320...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , |
|---|---|
| Format: | Journal article |
| Language: | English |
| Published: |
2010
|
| _version_ | 1797089420890865664 |
|---|---|
| author | Abbasi, R Abdou, Y Abu-Zayyad, T Adams, J Aguilar, J Ahlers, M Andeen, K Auffenberg, J Bai, X Baker, M Barwick, S Bay, R Alba, J Beattie, K Beatty, J Bechet, S Becker, J Becker, K Benabderrahmane, M BenZvi, S Berdermann, J Berghaus, P Berley, D Bernardini, E Bertrand, D |
| author_facet | Abbasi, R Abdou, Y Abu-Zayyad, T Adams, J Aguilar, J Ahlers, M Andeen, K Auffenberg, J Bai, X Baker, M Barwick, S Bay, R Alba, J Beattie, K Beatty, J Bechet, S Becker, J Becker, K Benabderrahmane, M BenZvi, S Berdermann, J Berghaus, P Berley, D Bernardini, E Bertrand, D |
| author_sort | Abbasi, R |
| collection | OXFORD |
| description | We report the first observation of an anisotropy in the arrival direction of cosmic rays with energies in the multi-TeV region in theSouthern sky using data from the IceCube detector. Between 2007 June and 2008 March, the partially deployed IceCube detector was operated in a configuration with 1320 digital optical sensors distributed over22 strings at depths between 1450 and 2450 m inside the Antarctic ice. IceCube is a neutrino detector, but the data are dominated by a large background of cosmic-ray muons. Therefore, the background data aresuitable for high-statistics studies of cosmic rays in the southern sky. The data include 4.3 billion muons produced by downward-going cosmic-ray interactions in the atmosphere; these events were reconstructed with a median angular resolution of 3° and a median energy of ∼20 TeV. Their arrival direction distribution exhibits an anisotropy in right ascension with a first-harmonic amplitude of (6.4±0.2 stat.±0.8 syst.) × 10-4. © 2010 The American Astronomical Society. |
| first_indexed | 2024-03-07T03:03:55Z |
| format | Journal article |
| id | oxford-uuid:b1e02fc0-ef4a-4c72-a811-1eeabb09732f |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T03:03:55Z |
| publishDate | 2010 |
| record_format | dspace |
| spelling | oxford-uuid:b1e02fc0-ef4a-4c72-a811-1eeabb09732f2022-03-27T04:07:24ZMEASUREMENT OF THE ANISOTROPY OF COSMIC-RAY ARRIVAL DIRECTIONS WITH ICECUBEJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:b1e02fc0-ef4a-4c72-a811-1eeabb09732fEnglishSymplectic Elements at Oxford2010Abbasi, RAbdou, YAbu-Zayyad, TAdams, JAguilar, JAhlers, MAndeen, KAuffenberg, JBai, XBaker, MBarwick, SBay, RAlba, JBeattie, KBeatty, JBechet, SBecker, JBecker, KBenabderrahmane, MBenZvi, SBerdermann, JBerghaus, PBerley, DBernardini, EBertrand, DWe report the first observation of an anisotropy in the arrival direction of cosmic rays with energies in the multi-TeV region in theSouthern sky using data from the IceCube detector. Between 2007 June and 2008 March, the partially deployed IceCube detector was operated in a configuration with 1320 digital optical sensors distributed over22 strings at depths between 1450 and 2450 m inside the Antarctic ice. IceCube is a neutrino detector, but the data are dominated by a large background of cosmic-ray muons. Therefore, the background data aresuitable for high-statistics studies of cosmic rays in the southern sky. The data include 4.3 billion muons produced by downward-going cosmic-ray interactions in the atmosphere; these events were reconstructed with a median angular resolution of 3° and a median energy of ∼20 TeV. Their arrival direction distribution exhibits an anisotropy in right ascension with a first-harmonic amplitude of (6.4±0.2 stat.±0.8 syst.) × 10-4. © 2010 The American Astronomical Society. |
| spellingShingle | Abbasi, R Abdou, Y Abu-Zayyad, T Adams, J Aguilar, J Ahlers, M Andeen, K Auffenberg, J Bai, X Baker, M Barwick, S Bay, R Alba, J Beattie, K Beatty, J Bechet, S Becker, J Becker, K Benabderrahmane, M BenZvi, S Berdermann, J Berghaus, P Berley, D Bernardini, E Bertrand, D MEASUREMENT OF THE ANISOTROPY OF COSMIC-RAY ARRIVAL DIRECTIONS WITH ICECUBE |
| title | MEASUREMENT OF THE ANISOTROPY OF COSMIC-RAY ARRIVAL DIRECTIONS WITH ICECUBE |
| title_full | MEASUREMENT OF THE ANISOTROPY OF COSMIC-RAY ARRIVAL DIRECTIONS WITH ICECUBE |
| title_fullStr | MEASUREMENT OF THE ANISOTROPY OF COSMIC-RAY ARRIVAL DIRECTIONS WITH ICECUBE |
| title_full_unstemmed | MEASUREMENT OF THE ANISOTROPY OF COSMIC-RAY ARRIVAL DIRECTIONS WITH ICECUBE |
| title_short | MEASUREMENT OF THE ANISOTROPY OF COSMIC-RAY ARRIVAL DIRECTIONS WITH ICECUBE |
| title_sort | measurement of the anisotropy of cosmic ray arrival directions with icecube |
| work_keys_str_mv | AT abbasir measurementoftheanisotropyofcosmicrayarrivaldirectionswithicecube AT abdouy measurementoftheanisotropyofcosmicrayarrivaldirectionswithicecube AT abuzayyadt measurementoftheanisotropyofcosmicrayarrivaldirectionswithicecube AT adamsj measurementoftheanisotropyofcosmicrayarrivaldirectionswithicecube AT aguilarj measurementoftheanisotropyofcosmicrayarrivaldirectionswithicecube AT ahlersm measurementoftheanisotropyofcosmicrayarrivaldirectionswithicecube AT andeenk measurementoftheanisotropyofcosmicrayarrivaldirectionswithicecube AT auffenbergj measurementoftheanisotropyofcosmicrayarrivaldirectionswithicecube AT baix measurementoftheanisotropyofcosmicrayarrivaldirectionswithicecube AT bakerm measurementoftheanisotropyofcosmicrayarrivaldirectionswithicecube AT barwicks measurementoftheanisotropyofcosmicrayarrivaldirectionswithicecube AT bayr measurementoftheanisotropyofcosmicrayarrivaldirectionswithicecube AT albaj measurementoftheanisotropyofcosmicrayarrivaldirectionswithicecube AT beattiek measurementoftheanisotropyofcosmicrayarrivaldirectionswithicecube AT beattyj measurementoftheanisotropyofcosmicrayarrivaldirectionswithicecube AT bechets measurementoftheanisotropyofcosmicrayarrivaldirectionswithicecube AT beckerj measurementoftheanisotropyofcosmicrayarrivaldirectionswithicecube AT beckerk measurementoftheanisotropyofcosmicrayarrivaldirectionswithicecube AT benabderrahmanem measurementoftheanisotropyofcosmicrayarrivaldirectionswithicecube AT benzvis measurementoftheanisotropyofcosmicrayarrivaldirectionswithicecube AT berdermannj measurementoftheanisotropyofcosmicrayarrivaldirectionswithicecube AT berghausp measurementoftheanisotropyofcosmicrayarrivaldirectionswithicecube AT berleyd measurementoftheanisotropyofcosmicrayarrivaldirectionswithicecube AT bernardinie measurementoftheanisotropyofcosmicrayarrivaldirectionswithicecube AT bertrandd measurementoftheanisotropyofcosmicrayarrivaldirectionswithicecube |