Journal article
Detection of Pulsed Gamma Rays Above 100 GeV from the Crab Pulsar
Science (American Association for the Advancement of Science), Vol.334(6052), pp.69-72
10/07/2011
DOI: 10.1126/science.1208192
PMID: 21980105
Abstract
We report the detection of pulsed gamma rays from the Crab pulsar at energies above 100 giga–electron volts (GeV) with the Very Energetic Radiation Imaging Telescope Array System (VERITAS) array of atmospheric Cherenkov telescopes. The detection cannot be explained on the basis of current pulsar models. The photon spectrum of pulsed emission between 100 mega–electron volts and 400 GeV is described by a broken power law that is statistically preferred over a power law with an exponential cutoff. It is unlikely that the observation can be explained by invoking curvature radiation as the origin of the observed gamma rays above 100 GeV. Our findings require that these gamma rays be produced more than 10 stellar radii from the neutron star.
Details
- Title: Subtitle
- Detection of Pulsed Gamma Rays Above 100 GeV from the Crab Pulsar
- Creators
- E Aliu - Columbia UniversityT Arlen - University of California, Los AngelesT Aune - University of California, Santa CruzM Beilicke - Washington University in St. LouisW Benbow - Harvard UniversityA Bouvier - University of California, Santa CruzS. M Bradbury - University of LeedsJ. H Buckley - Washington University in St. LouisV Bugaev - Washington University in St. LouisK Byrum - Argonne National LaboratoryA Cannon - University College DublinA Cesarini - Ollscoil na Gaillimhe – University of GalwayJ. L Christiansen - California Polytechnic State UniversityL Ciupik - Adler PlanetariumE Collins-Hughes - University College DublinM. P Connolly - Ollscoil na Gaillimhe – University of GalwayW Cui - Purdue University West LafayetteR Dickherber - Washington University in St. LouisC Duke - Grinnell CollegeM Errando - Columbia UniversityA Falcone - Pennsylvania State UniversityJ. P Finley - Purdue University West LafayetteG Finnegan - University of UtahL Fortson - University of MinnesotaA Furniss - University of California, Santa CruzN Galante - Harvard UniversityD Gall - University of IowaK Gibbs - Harvard UniversityG. H Gillanders - Ollscoil na Gaillimhe – University of GalwayS Godambe - University of UtahS Griffin - McGill UniversityJ Grube - Adler PlanetariumR Guenette - McGill UniversityG Gyuk - Adler PlanetariumD Hanna - McGill UniversityJ Holder - University of DelawareH Huan - University of ChicagoG Hughes - Deutsches Elektronen Synchrotron, Platanenallee 6, 15738 Zeuthen, GermanyC. M Hui - University of UtahT. B Humensky - University of ChicagoA Imran - Iowa State UniversityP Kaaret - University of IowaN Karlsson - University of MinnesotaM Kertzman - DePauw UniversityD Kieda - University of UtahH Krawczynski - Washington University in St. LouisF Krennrich - Iowa State UniversityM. J Lang - Ollscoil na Gaillimhe – University of GalwayM Lyutikov - Purdue University West LafayetteA. S Madhavan - Iowa State UniversityG Maier - Deutsches Elektronen Synchrotron, Platanenallee 6, 15738 Zeuthen, GermanyP Majumdar - University of California, Los AngelesS McArthur - Washington University in St. LouisA McCann - McGill UniversityM McCutcheon - McGill UniversityP Moriarty - Galway-Mayo Institute of TechnologyR Mukherjee - Columbia UniversityP Nuñez - University of UtahR. A Ong - University of California, Los AngelesM Orr - Iowa State UniversityA. N Otte - University of California, Santa CruzN Park - University of ChicagoJ. S Perkins - Harvard UniversityF Pizlo - Purdue University West LafayetteM Pohl - University of PotsdamH Prokoph - Deutsches Elektronen Synchrotron, Platanenallee 6, 15738 Zeuthen, GermanyJ Quinn - University College DublinK Ragan - McGill UniversityL. C Reyes - University of ChicagoP. T Reynolds - Cork Institute of TechnologyE Roache - Harvard UniversityH. J Rose - University of LeedsJ Ruppel - University of PotsdamD. B Saxon - University of DelawareM Schroedter - Harvard UniversityG. H Sembroski - Purdue University West LafayetteG. D Şentürk - Columbia UniversityA. W Smith - Argonne National LaboratoryD Staszak - McGill UniversityG Tešić - McGill UniversityM Theiling - Purdue University West LafayetteS Thibadeau - Washington University in St. LouisK Tsurusaki - University of IowaJ Tyler - McGill UniversityA Varlotta - Purdue University West LafayetteV. V Vassiliev - University of California, Los AngelesS Vincent - University of UtahM Vivier - University of DelawareS. P Wakely - University of ChicagoJ. E Ward - University College DublinT. C Weekes - Harvard UniversityA Weinstein - Iowa State UniversityT Weisgarber - University of ChicagoD. A Williams - University of California, Santa CruzB Zitzer - Argonne National LaboratoryVERITAS Collaboration
- Resource Type
- Journal article
- Publication Details
- Science (American Association for the Advancement of Science), Vol.334(6052), pp.69-72
- DOI
- 10.1126/science.1208192
- PMID
- 21980105
- NLM abbreviation
- Science
- ISSN
- 0036-8075
- eISSN
- 1095-9203
- Language
- English
- Date published
- 10/07/2011
- Academic Unit
- Physics and Astronomy
- Record Identifier
- 9984199684202771
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