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Article: Investigation of CTA 1 using a Suzaku observation

TitleInvestigation of CTA 1 using a Suzaku observation
Authors
KeywordsIsm: Individual Objects: Cta 1 (G119.5+10.2)
Ism: Supernova Remnants
Pulsars: General
Stars: Winds, Outflows
Time
X-Rays: General
Issue Date2012
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, 2012, v. 426 n. 3, p. 2283-2290 How to Cite?
AbstractWe report on a 105-ks Suzaku observation (obsid 404011010 with J. Takata as PI) of the supernova remnant CTA 1 (G119.5+10.2). The Suzaku soft X-ray observation was carried out using both the timing and imaging modes.A∼10-arcmin extended feature, which is interpreted as a bow-shock component of the pulsar wind nebula, is revealed in this deep observation for the first time. The nebular spectrum can be modelled by a power law with a photon index of∼1.8, which suggests a slow synchrotron cooling scenario. The photon index is approximately constant across this extended feature. We compare our observations of this complex nebula with previous X-ray investigations, and we discuss our findings. We do not obtain any significant pulsation from the central pulsar in the soft (0.2-12 keV) and hard (10-60 keV) X-ray data. The non-detection is mainly a result of the loss of the precise imaging ability to accurately determine the source contribution. The spectra from the X-ray imaging spectrometer and the hard X-ray detector can be directly connected without a significant spectral break, according to our analysis. Future observations by the Nuclear Spectroscopic Telescope Array (NuSTAR) and Astro-H might be able to resolve the contamination and provide an accurate hard X-ray measurement of CTA 1. © 2012 The Authors, Monthly Notices of the Royal Astronomical Society.
Persistent Identifierhttp://hdl.handle.net/10722/175229
ISSN
2015 Impact Factor: 4.952
2015 SCImago Journal Rankings: 2.806
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorLin, LCCen_US
dc.contributor.authorTakata, Jen_US
dc.contributor.authorKong, AKHen_US
dc.contributor.authorHui, CYen_US
dc.contributor.authorEnoto, Ten_US
dc.contributor.authorChang, HKen_US
dc.contributor.authorHuang, RHHen_US
dc.contributor.authorLiang, JSen_US
dc.contributor.authorShibata, Sen_US
dc.contributor.authorHwang, CYen_US
dc.date.accessioned2012-11-26T08:55:02Z-
dc.date.available2012-11-26T08:55:02Z-
dc.date.issued2012en_US
dc.identifier.citationMonthly Notices Of The Royal Astronomical Society, 2012, v. 426 n. 3, p. 2283-2290en_US
dc.identifier.issn0035-8711en_US
dc.identifier.urihttp://hdl.handle.net/10722/175229-
dc.description.abstractWe report on a 105-ks Suzaku observation (obsid 404011010 with J. Takata as PI) of the supernova remnant CTA 1 (G119.5+10.2). The Suzaku soft X-ray observation was carried out using both the timing and imaging modes.A∼10-arcmin extended feature, which is interpreted as a bow-shock component of the pulsar wind nebula, is revealed in this deep observation for the first time. The nebular spectrum can be modelled by a power law with a photon index of∼1.8, which suggests a slow synchrotron cooling scenario. The photon index is approximately constant across this extended feature. We compare our observations of this complex nebula with previous X-ray investigations, and we discuss our findings. We do not obtain any significant pulsation from the central pulsar in the soft (0.2-12 keV) and hard (10-60 keV) X-ray data. The non-detection is mainly a result of the loss of the precise imaging ability to accurately determine the source contribution. The spectra from the X-ray imaging spectrometer and the hard X-ray detector can be directly connected without a significant spectral break, according to our analysis. Future observations by the Nuclear Spectroscopic Telescope Array (NuSTAR) and Astro-H might be able to resolve the contamination and provide an accurate hard X-ray measurement of CTA 1. © 2012 The Authors, Monthly Notices 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.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.subjectIsm: Individual Objects: Cta 1 (G119.5+10.2)en_US
dc.subjectIsm: Supernova Remnantsen_US
dc.subjectPulsars: Generalen_US
dc.subjectStars: Winds, Outflowsen_US
dc.subjectTimeen_US
dc.subjectX-Rays: Generalen_US
dc.titleInvestigation of CTA 1 using a Suzaku observationen_US
dc.typeArticleen_US
dc.identifier.emailTakata, J: takata@hku.hken_US
dc.identifier.authorityTakata, J=rp00786en_US
dc.description.naturepublished_or_final_versionen_US
dc.identifier.doi10.1111/j.1365-2966.2012.21832.x-
dc.identifier.scopuseid_2-s2.0-84867618213en_US
dc.identifier.hkuros213460-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-84867618213&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume426en_US
dc.identifier.issue3en_US
dc.identifier.spage2283en_US
dc.identifier.epage2290en_US
dc.identifier.isiWOS:000310063900043-
dc.publisher.placeUnited Kingdomen_US
dc.identifier.scopusauthoridLin, LCC=24366370500en_US
dc.identifier.scopusauthoridTakata, J=22735157300en_US
dc.identifier.scopusauthoridKong, AKH=35185316600en_US
dc.identifier.scopusauthoridHui, CY=12781234500en_US
dc.identifier.scopusauthoridEnoto, T=10042393400en_US
dc.identifier.scopusauthoridChang, HK=35361754400en_US
dc.identifier.scopusauthoridHuang, RHH=36696348700en_US
dc.identifier.scopusauthoridLiang, JS=55413249400en_US
dc.identifier.scopusauthoridShibata, S=7402120464en_US
dc.identifier.scopusauthoridHwang, CY=55413824800en_US

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