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Article: Fermi-LAT study of Gamma-ray emission in the direction of supernova remnant W49B

TitleFermi-LAT study of Gamma-ray emission in the direction of supernova remnant W49B
Authors
Abdo, AAAckermann, MAjello, MBaldini, LBallet, JBarbiellini, GBastieri, DBechtol, KBellazzini, RBloom, EDBonamente, ERazzano, MReimer, AReimer, OReposeur, TRipken, JRoth, MSadrozinski, HFWSander, ASaz Parkinson, PMSgrò, CBorgland, AWSiskind, EJSmith, DASmith, PDSpinelli, PStrickman, MSSuson, DJTajima, HTakahashi, HTakahashi, TTanaka, TBouvier, ATibaldo, LTibolla, OTorres, DFTosti, GTramacere, AUchiyama, YUsher, TLVandenbroucke, JVasileiou, VVitale, VBregeon, JWaite, APWang, PWiner, BLWood, KSYlinen, TZiegler, MBrez, ABrigida, MBruel, PBuehler, RBuson, SCaliandro, GACameron, RACaraveo, PACasandjian, JMCecchi, CÇelik, ÖCheung, CCChiang, JCiprini, SClaus, RCohenTanugi, JConrad, JDermer, CDDe Palma, FDigel, SWDo Couto E Silva, EDrell, PSDumora, DFavuzzi, CFunk, SFusco, PGargano, FGehrels, NGiglietto, NGiordano, FGiroletti, MGlanzman, TGodfrey, GGrenier, IAGrondin, MHGrove, JEGuillemot, LGuiriec, SHadasch, DHanabata, YHarding, AKHayashida, MHays, EHoran, DHughes, REJackson, MSJóhannesson, GJohnson, ASJohnson, WNKamae, TKatagiri, HKataoka, JKatsuta, JKnödlseder, JKuss, MLande, JLatronico, LLee, SHLemoineGoumard, MLongo, FLoparco, FLovellette, MNLubrano, PMakeev, AMazziotta, MNMizuno, TMonte, CMonzani, MEMorselli, AMoskalenko, IVMurgia, SNaumannGodo, MNolan, PLNorris, JPNuss, EOhsugi, TOkumura, AOmodei, NOrlando, EOrmes, JFPelassa, VPepe, MPesceRollins, MPiron, FRainò, SRando, R
KeywordsAcceleration Of Particles
Ism: Individual Objects (W49b)
Radiation Mechanisms: Non-Thermal
Issue Date2010
PublisherInstitute of Physics Publishing Ltd. The Journal's web site is located at http://iopscience.iop.org/2041-8205
Citation
Astrophysical Journal Letters, 2010, v. 722 n. 2, p. 1303-1311 How to Cite?
DOI: http://dx.doi.org/10.1088/0004-637X/722/2/1303
AbstractWe present an analysis of the gamma-ray data obtained with the Large Area Telescope (LAT) on board the Fermi Gamma-ray Space Telescope in the direction of SNR W49B (G43.3-0.2). A bright unresolved gamma-ray source detected at a significance of 38s is found to coincide with SNR W49B. The energy spectrum in the 0.2-200 GeV range gradually steepens toward high energies. The luminosity is estimated to be 1.5 × 1036 (D/8 kpc)2 erg s -1 in this energy range. There is no indication that the gamma-ray emission comes from a pulsar. Assuming that the supernova remnant (SNR) shell is the site of gamma-ray production, the observed spectrum can be explained either by the decay of neutral π mesons produced through the proton-proton collisions or by electron bremsstrahlung. The calculated energy density of relativistic particles responsible for the LAT flux is estimated to be remarkably large, Ue,p > 104 eVcm-3, for either gamma-ray production mechanism. © 2010. The American Astronomical Society. All rights reserved. Printed in the U.S.A.
Persistent Identifierhttp://hdl.handle.net/10722/188398
ISSN
2041-8205
2023 Impact Factor: 8.8
2023 SCImago Journal Rankings: 2.766
ISI Accession Number ID
WOS:000284075400026
References
References in Scopus

 

DC FieldValueLanguage
dc.contributor.authorAbdo, AAen_US
dc.contributor.authorAckermann, Men_US
dc.contributor.authorAjello, Men_US
dc.contributor.authorBaldini, Len_US
dc.contributor.authorBallet, Jen_US
dc.contributor.authorBarbiellini, Gen_US
dc.contributor.authorBastieri, Den_US
dc.contributor.authorBechtol, Ken_US
dc.contributor.authorBellazzini, Ren_US
dc.contributor.authorBloom, EDen_US
dc.contributor.authorBonamente, Een_US
dc.contributor.authorRazzano, Men_US
dc.contributor.authorReimer, Aen_US
dc.contributor.authorReimer, Oen_US
dc.contributor.authorReposeur, Ten_US
dc.contributor.authorRipken, Jen_US
dc.contributor.authorRoth, Men_US
dc.contributor.authorSadrozinski, HFWen_US
dc.contributor.authorSander, Aen_US
dc.contributor.authorSaz Parkinson, PMen_US
dc.contributor.authorSgrò, Cen_US
dc.contributor.authorBorgland, AWen_US
dc.contributor.authorSiskind, EJen_US
dc.contributor.authorSmith, DAen_US
dc.contributor.authorSmith, PDen_US
dc.contributor.authorSpinelli, Pen_US
dc.contributor.authorStrickman, MSen_US
dc.contributor.authorSuson, DJen_US
dc.contributor.authorTajima, Hen_US
dc.contributor.authorTakahashi, Hen_US
dc.contributor.authorTakahashi, Ten_US
dc.contributor.authorTanaka, Ten_US
dc.contributor.authorBouvier, Aen_US
dc.contributor.authorTibaldo, Len_US
dc.contributor.authorTibolla, Oen_US
dc.contributor.authorTorres, DFen_US
dc.contributor.authorTosti, Gen_US
dc.contributor.authorTramacere, Aen_US
dc.contributor.authorUchiyama, Yen_US
dc.contributor.authorUsher, TLen_US
dc.contributor.authorVandenbroucke, Jen_US
dc.contributor.authorVasileiou, Ven_US
dc.contributor.authorVitale, Ven_US
dc.contributor.authorBregeon, Jen_US
dc.contributor.authorWaite, APen_US
dc.contributor.authorWang, Pen_US
dc.contributor.authorWiner, BLen_US
dc.contributor.authorWood, KSen_US
dc.contributor.authorYlinen, Ten_US
dc.contributor.authorZiegler, Men_US
dc.contributor.authorBrez, Aen_US
dc.contributor.authorBrigida, Men_US
dc.contributor.authorBruel, Pen_US
dc.contributor.authorBuehler, Ren_US
dc.contributor.authorBuson, Sen_US
dc.contributor.authorCaliandro, GAen_US
dc.contributor.authorCameron, RAen_US
dc.contributor.authorCaraveo, PAen_US
dc.contributor.authorCasandjian, JMen_US
dc.contributor.authorCecchi, Cen_US
dc.contributor.authorÇelik, Öen_US
dc.contributor.authorCheung, CCen_US
dc.contributor.authorChiang, Jen_US
dc.contributor.authorCiprini, Sen_US
dc.contributor.authorClaus, Ren_US
dc.contributor.authorCohenTanugi, Jen_US
dc.contributor.authorConrad, Jen_US
dc.contributor.authorDermer, CDen_US
dc.contributor.authorDe Palma, Fen_US
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dc.contributor.authorDo Couto E Silva, Een_US
dc.contributor.authorDrell, PSen_US
dc.contributor.authorDumora, Den_US
dc.contributor.authorFavuzzi, Cen_US
dc.contributor.authorFunk, Sen_US
dc.contributor.authorFusco, Pen_US
dc.contributor.authorGargano, Fen_US
dc.contributor.authorGehrels, Nen_US
dc.contributor.authorGiglietto, Nen_US
dc.contributor.authorGiordano, Fen_US
dc.contributor.authorGiroletti, Men_US
dc.contributor.authorGlanzman, Ten_US
dc.contributor.authorGodfrey, Gen_US
dc.contributor.authorGrenier, IAen_US
dc.contributor.authorGrondin, MHen_US
dc.contributor.authorGrove, JEen_US
dc.contributor.authorGuillemot, Len_US
dc.contributor.authorGuiriec, Sen_US
dc.contributor.authorHadasch, Den_US
dc.contributor.authorHanabata, Yen_US
dc.contributor.authorHarding, AKen_US
dc.contributor.authorHayashida, Men_US
dc.contributor.authorHays, Een_US
dc.contributor.authorHoran, Den_US
dc.contributor.authorHughes, REen_US
dc.contributor.authorJackson, MSen_US
dc.contributor.authorJóhannesson, Gen_US
dc.contributor.authorJohnson, ASen_US
dc.contributor.authorJohnson, WNen_US
dc.contributor.authorKamae, Ten_US
dc.contributor.authorKatagiri, Hen_US
dc.contributor.authorKataoka, Jen_US
dc.contributor.authorKatsuta, Jen_US
dc.contributor.authorKnödlseder, Jen_US
dc.contributor.authorKuss, Men_US
dc.contributor.authorLande, Jen_US
dc.contributor.authorLatronico, Len_US
dc.contributor.authorLee, SHen_US
dc.contributor.authorLemoineGoumard, Men_US
dc.contributor.authorLongo, Fen_US
dc.contributor.authorLoparco, Fen_US
dc.contributor.authorLovellette, MNen_US
dc.contributor.authorLubrano, Pen_US
dc.contributor.authorMakeev, Aen_US
dc.contributor.authorMazziotta, MNen_US
dc.contributor.authorMizuno, Ten_US
dc.contributor.authorMonte, Cen_US
dc.contributor.authorMonzani, MEen_US
dc.contributor.authorMorselli, Aen_US
dc.contributor.authorMoskalenko, IVen_US
dc.contributor.authorMurgia, Sen_US
dc.contributor.authorNaumannGodo, Men_US
dc.contributor.authorNolan, PLen_US
dc.contributor.authorNorris, JPen_US
dc.contributor.authorNuss, Een_US
dc.contributor.authorOhsugi, Ten_US
dc.contributor.authorOkumura, Aen_US
dc.contributor.authorOmodei, Nen_US
dc.contributor.authorOrlando, Een_US
dc.contributor.authorOrmes, JFen_US
dc.contributor.authorPelassa, Ven_US
dc.contributor.authorPepe, Men_US
dc.contributor.authorPesceRollins, Men_US
dc.contributor.authorPiron, Fen_US
dc.contributor.authorRainò, Sen_US
dc.contributor.authorRando, Ren_US
dc.date.accessioned2013-09-03T04:05:17Z-
dc.date.available2013-09-03T04:05:17Z-
dc.date.issued2010en_US
dc.identifier.citationAstrophysical Journal Letters, 2010, v. 722 n. 2, p. 1303-1311en_US
dc.identifier.issn2041-8205en_US
dc.identifier.urihttp://hdl.handle.net/10722/188398-
dc.description.abstractWe present an analysis of the gamma-ray data obtained with the Large Area Telescope (LAT) on board the Fermi Gamma-ray Space Telescope in the direction of SNR W49B (G43.3-0.2). A bright unresolved gamma-ray source detected at a significance of 38s is found to coincide with SNR W49B. The energy spectrum in the 0.2-200 GeV range gradually steepens toward high energies. The luminosity is estimated to be 1.5 × 1036 (D/8 kpc)2 erg s -1 in this energy range. There is no indication that the gamma-ray emission comes from a pulsar. Assuming that the supernova remnant (SNR) shell is the site of gamma-ray production, the observed spectrum can be explained either by the decay of neutral π mesons produced through the proton-proton collisions or by electron bremsstrahlung. The calculated energy density of relativistic particles responsible for the LAT flux is estimated to be remarkably large, Ue,p > 104 eVcm-3, for either gamma-ray production mechanism. © 2010. The American Astronomical Society. All rights reserved. Printed in the U.S.A.en_US
dc.languageengen_US
dc.publisherInstitute of Physics Publishing Ltd. The Journal's web site is located at http://iopscience.iop.org/2041-8205en_US
dc.relation.ispartofAstrophysical Journal Lettersen_US
dc.subjectAcceleration Of Particlesen_US
dc.subjectIsm: Individual Objects (W49b)en_US
dc.subjectRadiation Mechanisms: Non-Thermalen_US
dc.titleFermi-LAT study of Gamma-ray emission in the direction of supernova remnant W49Ben_US
dc.typeArticleen_US
dc.identifier.emailSaz Parkinson, PM: pablosp@hku.hken_US
dc.identifier.authoritySaz Parkinson, PM=rp01803en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1088/0004-637X/722/2/1303en_US
dc.identifier.scopuseid_2-s2.0-78149236068en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-78149236068&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume722en_US
dc.identifier.issue2en_US
dc.identifier.spage1303en_US
dc.identifier.epage1311en_US
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dc.identifier.issnl2041-8205-

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