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Article: Could very high energy gamma rays from the Crab nebula result from p-p collision?

TitleCould very high energy gamma rays from the Crab nebula result from p-p collision?
Authors
Issue Date1990
PublisherInstitute of Physics Publishing. The Journal's web site is located at http://www.iop.org/Journals/jpg
Citation
Journal Of Physics G: Nuclear And Particle Physics, 1990, v. 16 n. 7, p. 1115-1121 How to Cite?
AbstractIt is generally believed that the very high energy (VHE) gamma rays emitted from the Crab Nebula cannot result from the decay of neutral pions which are produced by the collision between relativistic protons, due to the small hadronic cross section and low column density of the nebula. However, the magnetic field of the Crab Nebula could trap a large amount of relativistic protons from the pulsar with a total energy of up to 10 47 erg, because this amount of energy is difficult to release for the same reason. Nevertheless, a small amount of protons will be converted to VHE photons through occasional hadronic collisions which result in steady VHE gamma ray emission with an average power of approximately 4*10 34 erg s -1. The authors calculate the proton energy spectrum by using the pulsar evolution model proposed by Ruderman and Cheng (1988).
Persistent Identifierhttp://hdl.handle.net/10722/174996
ISSN
2015 Impact Factor: 2.448
2015 SCImago Journal Rankings: 0.856
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorCheng, KSen_US
dc.contributor.authorCheung, Ten_US
dc.contributor.authorLau, MMen_US
dc.contributor.authorYu, KNen_US
dc.contributor.authorKwok, PWen_US
dc.date.accessioned2012-11-26T08:48:41Z-
dc.date.available2012-11-26T08:48:41Z-
dc.date.issued1990en_US
dc.identifier.citationJournal Of Physics G: Nuclear And Particle Physics, 1990, v. 16 n. 7, p. 1115-1121en_US
dc.identifier.issn0954-3899en_US
dc.identifier.urihttp://hdl.handle.net/10722/174996-
dc.description.abstractIt is generally believed that the very high energy (VHE) gamma rays emitted from the Crab Nebula cannot result from the decay of neutral pions which are produced by the collision between relativistic protons, due to the small hadronic cross section and low column density of the nebula. However, the magnetic field of the Crab Nebula could trap a large amount of relativistic protons from the pulsar with a total energy of up to 10 47 erg, because this amount of energy is difficult to release for the same reason. Nevertheless, a small amount of protons will be converted to VHE photons through occasional hadronic collisions which result in steady VHE gamma ray emission with an average power of approximately 4*10 34 erg s -1. The authors calculate the proton energy spectrum by using the pulsar evolution model proposed by Ruderman and Cheng (1988).en_US
dc.languageengen_US
dc.publisherInstitute of Physics Publishing. The Journal's web site is located at http://www.iop.org/Journals/jpgen_US
dc.relation.ispartofJournal of Physics G: Nuclear and Particle Physicsen_US
dc.titleCould very high energy gamma rays from the Crab nebula result from p-p collision?en_US
dc.typeArticleen_US
dc.identifier.emailCheng, KS: hrspksc@hkucc.hku.hken_US
dc.identifier.authorityCheng, KS=rp00675en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1088/0954-3899/16/7/022en_US
dc.identifier.scopuseid_2-s2.0-32044462437en_US
dc.identifier.volume16en_US
dc.identifier.issue7en_US
dc.identifier.spage1115en_US
dc.identifier.epage1121en_US
dc.identifier.isiWOS:A1990DN61900022-
dc.publisher.placeUnited Kingdomen_US
dc.identifier.scopusauthoridCheng, KS=9745798500en_US
dc.identifier.scopusauthoridCheung, T=36345308700en_US
dc.identifier.scopusauthoridLau, MM=16441454100en_US
dc.identifier.scopusauthoridYu, KN=22996051600en_US
dc.identifier.scopusauthoridKwok, PW=43961154400en_US

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