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Article: Pulsar searches of fermi unassociated sources with the effelsberg telescope

TitlePulsar searches of fermi unassociated sources with the effelsberg telescope
Authors
KeywordsGeneral
General-Pulsars
Individual: Psr J1745+1017-Gamma-Rays
Pulsars
Issue Date2013
PublisherBlackwell Publishing Ltd. The Journal's web site is located at http://www.blackwellpublishing.com/journals/MNR
Citation
Monthly Notices Of The Royal Astronomical Society, 2013, v. 429 n. 2, p. 1633-1642 How to Cite?
AbstractUsing the 100-m Effelsberg radio telescope operating at 1.36 GHz, we have performed a targeted radio pulsar survey of 289 unassociated γ -ray sources discovered by the LargeArea Telescope (LAT) aboard the Fermi satellite and published in the 1FGL catalogue (Abdoet al. 2010a). This survey resulted in the discovery of millisecond pulsar J1745+1017, which resides in a short-period binary system with a low-mass companion, Mc,min ̃ 0.0137M⊙, indicative of 'black widow' type systems.A2-yr timing campaign has produced a refined radio ephemeris, accurate enough to allow for phase-folding of the LAT photons, resulting in the detection of a dual-peaked γ -ray light curve, proving that PSR J1745+1017 is the source responsible for the γ -ray emission seen in 1FGL J1745.5+1018 (2FGL J1745.6+1015; Nolan et al. 2012). We find the γ -ray spectrum of PSR J1745+1017 to be well modelled by an exponentially cut-off power law with cut-off energy 3.2 GeV and photon index 1.6. The observed sources are known to contain a further 10 newly discovered pulsars which were undetected in this survey. Our radio observations of these sources are discussed and in allcases limiting flux densities are calculated. The reasons behind the seemingly low yield of discoveries are also discussed. © 2012 The Authors. Published by Oxford University Press on behalf of the Royal Astronomical Society.
Persistent Identifierhttp://hdl.handle.net/10722/188432
ISSN
2015 Impact Factor: 4.952
2015 SCImago Journal Rankings: 2.806
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorBarr, EDen_US
dc.contributor.authorGuillemot, Len_US
dc.contributor.authorChampion, DJen_US
dc.contributor.authorKramer, Men_US
dc.contributor.authorEatough, RPen_US
dc.contributor.authorLee, KJen_US
dc.contributor.authorVerbiest, JPWen_US
dc.contributor.authorBassa, CGen_US
dc.contributor.authorCamilo, Fen_US
dc.contributor.authorÇelik, Oen_US
dc.contributor.authorCognard, Ien_US
dc.contributor.authorFerrara, ECen_US
dc.contributor.authorFreire, PCCen_US
dc.contributor.authorJanssen, GHen_US
dc.contributor.authorJohnston, Sen_US
dc.contributor.authorKeith, Men_US
dc.contributor.authorLyne, AGen_US
dc.contributor.authorMichelson, PFen_US
dc.contributor.authorSaz Parkinson, PMen_US
dc.contributor.authorRansom, SMen_US
dc.contributor.authorRay, PSen_US
dc.contributor.authorStappers, BWen_US
dc.contributor.authorWood, KSen_US
dc.date.accessioned2013-09-03T04:05:56Z-
dc.date.available2013-09-03T04:05:56Z-
dc.date.issued2013en_US
dc.identifier.citationMonthly Notices Of The Royal Astronomical Society, 2013, v. 429 n. 2, p. 1633-1642en_US
dc.identifier.issn0035-8711en_US
dc.identifier.urihttp://hdl.handle.net/10722/188432-
dc.description.abstractUsing the 100-m Effelsberg radio telescope operating at 1.36 GHz, we have performed a targeted radio pulsar survey of 289 unassociated γ -ray sources discovered by the LargeArea Telescope (LAT) aboard the Fermi satellite and published in the 1FGL catalogue (Abdoet al. 2010a). This survey resulted in the discovery of millisecond pulsar J1745+1017, which resides in a short-period binary system with a low-mass companion, Mc,min ̃ 0.0137M⊙, indicative of 'black widow' type systems.A2-yr timing campaign has produced a refined radio ephemeris, accurate enough to allow for phase-folding of the LAT photons, resulting in the detection of a dual-peaked γ -ray light curve, proving that PSR J1745+1017 is the source responsible for the γ -ray emission seen in 1FGL J1745.5+1018 (2FGL J1745.6+1015; Nolan et al. 2012). We find the γ -ray spectrum of PSR J1745+1017 to be well modelled by an exponentially cut-off power law with cut-off energy 3.2 GeV and photon index 1.6. The observed sources are known to contain a further 10 newly discovered pulsars which were undetected in this survey. Our radio observations of these sources are discussed and in allcases limiting flux densities are calculated. The reasons behind the seemingly low yield of discoveries are also discussed. © 2012 The Authors. Published by Oxford University Press on behalf of the Royal Astronomical Society.en_US
dc.languageengen_US
dc.publisherBlackwell Publishing Ltd. The Journal's web site is located at http://www.blackwellpublishing.com/journals/MNRen_US
dc.relation.ispartofMonthly Notices of the Royal Astronomical Societyen_US
dc.subjectGeneralen_US
dc.subjectGeneral-Pulsarsen_US
dc.subjectIndividual: Psr J1745+1017-Gamma-Raysen_US
dc.subjectPulsarsen_US
dc.titlePulsar searches of fermi unassociated sources with the effelsberg telescopeen_US
dc.typeArticleen_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1093/mnras/sts449en_US
dc.identifier.scopuseid_2-s2.0-84874102198en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-84874102198&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume429en_US
dc.identifier.issue2en_US
dc.identifier.spage1633en_US
dc.identifier.epage1642en_US
dc.identifier.isiWOS:000318239300056-
dc.publisher.placeUnited Kingdomen_US
dc.identifier.scopusauthoridBarr, ED=36815610100en_US
dc.identifier.scopusauthoridGuillemot, L=36739789600en_US
dc.identifier.scopusauthoridChampion, DJ=8920388300en_US
dc.identifier.scopusauthoridKramer, M=23968081200en_US
dc.identifier.scopusauthoridEatough, RP=26029120300en_US
dc.identifier.scopusauthoridLee, KJ=55600977900en_US
dc.identifier.scopusauthoridVerbiest, JPW=15822990400en_US
dc.identifier.scopusauthoridBassa, CG=6506360995en_US
dc.identifier.scopusauthoridCamilo, F=7006263946en_US
dc.identifier.scopusauthoridÇelik, O=36969322100en_US
dc.identifier.scopusauthoridCognard, I=6602462872en_US
dc.identifier.scopusauthoridFerrara, EC=7005472148en_US
dc.identifier.scopusauthoridFreire, PCC=7005742539en_US
dc.identifier.scopusauthoridJanssen, GH=9237221800en_US
dc.identifier.scopusauthoridJohnston, S=7401782039en_US
dc.identifier.scopusauthoridKeith, M=24829229000en_US
dc.identifier.scopusauthoridLyne, AG=23044691300en_US
dc.identifier.scopusauthoridMichelson, PF=35230455000en_US
dc.identifier.scopusauthoridSaz Parkinson, PM=7004565374en_US
dc.identifier.scopusauthoridRansom, SM=55555490300en_US
dc.identifier.scopusauthoridRay, PS=36815610100en_US
dc.identifier.scopusauthoridStappers, BW=36739789600en_US
dc.identifier.scopusauthoridWood, KS=8920388300en_US

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