Measurement of cosmic-ray electrons at TeV energies by VERITAS

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dc.contributor.authorVERITAS Collaboration
dc.contributor.otherPurdue University System
dc.contributor.otherPurdue University
dc.contributor.otherPurdue University West Lafayette Campus
dc.contributor.otherHarvard University
dc.contributor.otherSmithsonian Institution
dc.contributor.otherUniversity of California System
dc.contributor.otherUniversity of California Los Angeles
dc.contributor.otherUniversity of Potsdam
dc.contributor.otherHelmholtz Association
dc.contributor.otherDeutsches Elektronen-Synchrotron (DESY)
dc.contributor.otherWashington University (WUSTL)
dc.contributor.otherOllscoil na Gaillimhe-University of Galway
dc.contributor.otherTsinghua University
dc.contributor.otherMcGill University
dc.contributor.otherUniversity of Minnesota System
dc.contributor.otherUniversity of Minnesota Twin Cities
dc.contributor.otherCalifornia State University System
dc.contributor.otherCalifornia State University East Bay
dc.contributor.otherUniversity of California Santa Cruz
dc.contributor.otherUniversity of Delaware
dc.contributor.otherColumbia University
dc.contributor.otherUniversity of Iowa
dc.contributor.otherUtah System of Higher Education
dc.contributor.otherUniversity of Utah
dc.contributor.otherDePauw University
dc.contributor.otherIowa State University
dc.contributor.otherUniversity College Dublin
dc.contributor.otherUniversity System of Georgia
dc.contributor.otherGeorgia Institute of Technology
dc.contributor.otherCork Institute of Technology
dc.contributor.otherUniversity of Alabama Tuscaloosa
dc.contributor.otherUniversity of Chicago
dc.date.accessioned2019-06-26T15:31:50Z
dc.date.available2019-06-26T15:31:50Z
dc.date.issued2018-09-20
dc.description.abstractCosmic-ray electrons and positrons (CREs) at GeV-TeV energies are a unique probe of our local Galactic neighborhood. CREs lose energy rapidly via synchrotron radiation and inverse-Compton scattering processes while propagating within the Galaxy, and these losses limit their propagation distance. For electrons with TeV energies, the limit is on the order of a kiloparsec. Within that distance, there are only a few known astrophysical objects capable of accelerating electrons to such high energies. It is also possible that the CREs are the products of the annihilation or decay of heavy dark matter (DM) particles. VERITAS, an array of imaging air Cherenkov telescopes in southern Arizona, is primarily utilized for gamma-ray astronomy but also simultaneously collects CREs during all observations. We describe our methods of identifying CREs in VERITAS data and present an energy spectrum, extending from 300 GeV to 5 TeV, obtained from approximately 300 hours of observations. A single power-law fit is ruled out in VERITAS data. We find that the spectrum of CREs is consistent with a broken power law, with a break energy at 710 +/- 40(stat) +/- 140(syst) GeV.en_US
dc.format.mimetypeapplication/pdf
dc.identifier.citationArcher, A., et al. (2018): Measurement of Cosmic-ray Electrons at TeV Energies by VERITAS. Physical Review D, 98(6). DOI: https://doi.org/10.1103/PhysRevD.98.062004
dc.identifier.doi10.1103/PhysRevD.98.062004
dc.identifier.orcidhttps://orcid.org/0000-0002-5955-6383
dc.identifier.orcidhttps://orcid.org/0000-0002-8053-7910
dc.identifier.orcidhttps://orcid.org/0000-0001-7861-1707
dc.identifier.orcidhttps://orcid.org/0000-0002-2126-2419
dc.identifier.orcidhttps://orcid.org/0000-0001-6674-4238
dc.identifier.orcidhttps://orcid.org/0000-0002-5167-1221
dc.identifier.orcidhttps://orcid.org/0000-0002-4855-2694
dc.identifier.orcidhttps://orcid.org/0000-0002-2814-1257
dc.identifier.orcidhttps://orcid.org/0000-0003-4785-0101
dc.identifier.orcidhttps://orcid.org/0000-0001-7483-4348
dc.identifier.orcidhttps://orcid.org/0000-0002-8312-6930
dc.identifier.orcidhttps://orcid.org/0000-0002-2133-5251
dc.identifier.orcidhttps://orcid.org/0000-0002-1432-7771
dc.identifier.orcidhttps://orcid.org/0000-0002-6324-5772
dc.identifier.orcidhttps://orcid.org/0000-0003-1387-8915
dc.identifier.orcidhttps://orcid.org/0000-0002-4837-5253
dc.identifier.orcidhttps://orcid.org/0000-0002-4596-8563
dc.identifier.orcidhttps://orcid.org/0000-0003-4641-4201
dc.identifier.orcidhttps://orcid.org/0000-0001-7297-8217
dc.identifier.orcidhttps://orcid.org/0000-0001-9868-4700
dc.identifier.orcidhttps://orcid.org/0000-0002-1067-8558
dc.identifier.orcidhttps://orcid.org/0000-0003-2098-170X
dc.identifier.urihttp://ir.ua.edu/handle/123456789/5851
dc.languageEnglish
dc.language.isoen_US
dc.publisherAmerican Physical Society
dc.subjectSEPARATION
dc.subjectAstronomy & Astrophysics
dc.subjectPhysics, Particles & Fields
dc.subjectPhysics
dc.titleMeasurement of cosmic-ray electrons at TeV energies by VERITASen_US
dc.typetext
dc.typeArticle
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