1. RRI Digital Repository
  2. 04. Astronomy and Astrophysics
  3. Research Papers (A&A)
Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/6974
Full metadata record
DC FieldValueLanguage
dc.contributor.authorBhattacharyya, Sudip-
dc.contributor.authorYadav, J.S.-
dc.contributor.authorSridhar, Navin-
dc.contributor.authorChauhan, Jai Verdhan-
dc.contributor.authorAgrawal, P.C.-
dc.contributor.authorAntia, H M-
dc.contributor.authorPahari, Mayukh-
dc.contributor.authorMisra, Ranjeev-
dc.contributor.authorKatoch, Tilak-
dc.contributor.authorManchanda, R.K.-
dc.contributor.authorPaul, Biswajit-
dc.date.accessioned2018-07-23T14:30:50Z-
dc.date.available2018-07-23T14:30:50Z-
dc.date.issued2018-06-20-
dc.identifier.citationAstrophysical Journal, 2018, Vol. 860, p88en_US
dc.identifier.issn0004-637X-
dc.identifier.issn1538-4357-(Online)-
dc.identifier.urihttp://hdl.handle.net/2289/6974-
dc.descriptionOpen Accessen_US
dc.description.abstractIt has recently been shown that the persistent emission of a neutron star low-mass X-ray binary (LMXB) evolves during a thermonuclear (type-I) X-ray burst. The reason of this evolution, however, is not fully known. This uncertainty can introduce significant systematics in the neutron star radius measurement using burst spectra, particularly if an unknown but significant fraction of the burst emission, which is reprocessed, contributes to the changes in the persistent emission during the burst. Here, by analyzing individual burst data of AstroSat/LAXPC from the neutron star LMXB 4U 1728–34 in the soft state, we show that the burst emission is not significantly reprocessed by a corona covering the neutron star. Rather, our analysis suggests that the burst emission enhances the accretion disk emission, possibly by increasing the accretion rate via disk. This enhanced disk emission, which is Comptonized by a corona covering the disk, can explain an increased persistent emission observed during the burst. This finding provides an understanding of persistent emission components and their interaction with the thermonuclear burst emission. Furthermore, as burst photons are not significantly reprocessed, non-burst and burst emissions can be reliably separated, which is required to reduce systematic uncertainties in the stellar radius measurementen_US
dc.language.isoenen_US
dc.publisherIOP Sciences for The American Astronomical Societyen_US
dc.relation.urihttp://adsabs.harvard.edu/abs/2018ApJ...860...88Ben_US
dc.relation.urihttps://arxiv.org/abs/1805.05393en_US
dc.relation.urihttps://doi.org/10.3847/1538-4357/aac495en_US
dc.rights2018. The American Astronomical Societyen_US
dc.subjectaccretionen_US
dc.subjectaccretion disks – methodsen_US
dc.subjectdata analysis – X-raysen_US
dc.subjectbinaries – X-rays:burstsen_US
dc.subjectX-rays: individual (4U 1728)en_US
dc.titleEffects of Thermonuclear X-Ray Bursts on Non-burst Emissions in the Soft State of 4U 1728–34en_US
dc.typeArticleen_US
Appears in Collections:Research Papers (A&A)

Files in This Item:
File Description SizeFormat 
2018_ApJ_Vol.860_p88.pdfOpen Access296.11 kBAdobe PDFView/Open
Show simple item record


Items in RRI Digital Repository are protected by copyright, with all rights reserved, unless otherwise indicated.