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Article: X-ray pulsations from the radio-quiet gamma-ray pulsar in CTA 1

TitleX-ray pulsations from the radio-quiet gamma-ray pulsar in CTA 1
Authors
KeywordsPulsars: Individual (Psr J0007+7303)
Stars: Neutron
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. 725 n. 1 PART 2, p. L6-L10 How to Cite?
AbstractPrompted by the Fermi-LAT discovery of a radio-quiet gamma-ray pulsar inside the CTA 1 supernova remnant, we obtained a 130 ks XMM-Newton observation to assess the timing behavior of this pulsar. Exploiting both the unprecedented photon harvest and the contemporary Fermi-LAT timing measurements, a 4.7σ single-peak pulsation is detected, making PSR J0007+7303 the second example, after Geminga, of a radio-quiet gamma-ray pulsar also seen to pulsate in X-rays. Phase-resolved spectroscopy shows that the off-pulse portion of the light curve is dominated by a power-law, non-thermal spectrum, while the X-ray peak emission appears to be mainly of thermal origin, probably from a polar cap heated by magnetospheric return currents, pointing to a hot spot varying throughout the pulsar rotation. © 2010. The American Astronomical Society. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/188403
ISSN
2015 Impact Factor: 5.487
2015 SCImago Journal Rankings: 3.369
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorCaraveo, PAen_US
dc.contributor.authorDe Luca, Aen_US
dc.contributor.authorMarelli, Men_US
dc.contributor.authorBignami, GFen_US
dc.contributor.authorRay, PSen_US
dc.contributor.authorSaz Parkinson, PMen_US
dc.contributor.authorKanbach, Gen_US
dc.date.accessioned2013-09-03T04:05:25Z-
dc.date.available2013-09-03T04:05:25Z-
dc.date.issued2010en_US
dc.identifier.citationAstrophysical Journal Letters, 2010, v. 725 n. 1 PART 2, p. L6-L10en_US
dc.identifier.issn2041-8205en_US
dc.identifier.urihttp://hdl.handle.net/10722/188403-
dc.description.abstractPrompted by the Fermi-LAT discovery of a radio-quiet gamma-ray pulsar inside the CTA 1 supernova remnant, we obtained a 130 ks XMM-Newton observation to assess the timing behavior of this pulsar. Exploiting both the unprecedented photon harvest and the contemporary Fermi-LAT timing measurements, a 4.7σ single-peak pulsation is detected, making PSR J0007+7303 the second example, after Geminga, of a radio-quiet gamma-ray pulsar also seen to pulsate in X-rays. Phase-resolved spectroscopy shows that the off-pulse portion of the light curve is dominated by a power-law, non-thermal spectrum, while the X-ray peak emission appears to be mainly of thermal origin, probably from a polar cap heated by magnetospheric return currents, pointing to a hot spot varying throughout the pulsar rotation. © 2010. The American Astronomical Society. All rights reserved.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.subjectPulsars: Individual (Psr J0007+7303)en_US
dc.subjectStars: Neutronen_US
dc.titleX-ray pulsations from the radio-quiet gamma-ray pulsar in CTA 1en_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.doi10.1088/2041-8205/725/1/L6en_US
dc.identifier.scopuseid_2-s2.0-78650241996en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-78650241996&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume725en_US
dc.identifier.issue1 PART 2en_US
dc.identifier.spageL6en_US
dc.identifier.epageL10en_US
dc.identifier.isiWOS:000284575400002-
dc.publisher.placeUnited Kingdomen_US
dc.identifier.scopusauthoridCaraveo, PA=14006843000en_US
dc.identifier.scopusauthoridDe Luca, A=13609305500en_US
dc.identifier.scopusauthoridMarelli, M=25031722900en_US
dc.identifier.scopusauthoridBignami, GF=7005623938en_US
dc.identifier.scopusauthoridRay, PS=7401892043en_US
dc.identifier.scopusauthoridSaz Parkinson, PM=8948464400en_US
dc.identifier.scopusauthoridKanbach, G=7006620228en_US

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