dc.contributor.author | Aartsen, M. G. | |
dc.contributor.author | Abraham, K. | |
dc.contributor.author | Ackermann, M. | |
dc.contributor.author | Adams, J. | |
dc.contributor.author | Aguilar, J. A. | |
dc.contributor.author | Ahlers, M. | |
dc.contributor.author | Ahrens, M. | |
dc.contributor.author | Altmann, D. | |
dc.contributor.author | Andeen, K. | |
dc.contributor.author | Anderson, T. | |
dc.contributor.author | Besson, David Zeke | |
dc.contributor.author | IceCube Collaboration | |
dc.date.accessioned | 2017-10-30T16:38:44Z | |
dc.date.available | 2017-10-30T16:38:44Z | |
dc.date.issued | 2016-10-18 | |
dc.identifier.citation | Aartsen, M. G., Abraham, K., Ackermann, M., Adams, J., Aguilar, J. A., Ahlers, M., . . . Zoll, M. (2016). Search For Sources Of High-Energy Neutrons With Four Years Of Data From The Icetop Detector. The Astrophysical Journal, 830(2), 129. doi:10.3847/0004-637x/830/2/129 | en_US |
dc.identifier.uri | http://hdl.handle.net/1808/25214 | |
dc.description.abstract | 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. | en_US |
dc.publisher | American Astronomical Society | en_US |
dc.rights | © 2016. The American Astronomical Society. All rights reserved. | en_US |
dc.title | SEARCH FOR SOURCES OF HIGH-ENERGY NEUTRONS WITH FOUR YEARS OF DATA FROM THE ICETOP DETECTOR | en_US |
dc.type | Article | en_US |
kusw.kuauthor | Besson, David Zeke | |
kusw.kudepartment | Physics and Astronomy | en_US |
dc.identifier.doi | 10.3847/0004-637X/830/2/129 | en_US |
kusw.oaversion | Scholarly/refereed, publisher version | en_US |
kusw.oapolicy | This item meets KU Open Access policy criteria. | en_US |
dc.rights.accessrights | openAccess | |