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dc.contributor.authorHoman, Jeroen
dc.contributor.authorvan der Klis, Michiel
dc.contributor.authorWijnands, Rudy
dc.contributor.authorMendez, Mariano
dc.contributor.authorLin, Dacheng
dc.contributor.authorAltamirano, Diego
dc.contributor.authorCasella, P.
dc.contributor.authorBelloni, Tomaso M.
dc.contributor.authorLewin, Walter H. G.
dc.contributor.authorFridriksson, Joel Karl
dc.contributor.authorRemillard, Ronald A
dc.date.accessioned2015-03-04T19:54:08Z
dc.date.available2015-03-04T19:54:08Z
dc.date.issued2010-07
dc.date.submitted2010-03
dc.identifier.issn0004-637X
dc.identifier.issn1538-4357
dc.identifier.urihttp://hdl.handle.net/1721.1/95818
dc.description.abstractWe report on an analysis of Rossi X-Ray Timing Explorer data of the transient neutron star low-mass X-ray binary (NS-LMXB) XTE J1701-462, obtained during its 2006-2007 outburst. The X-ray properties of the source changed between those of various types of NS-LMXB subclasses. At high luminosities, the source switched between two types of Z source behavior and at low luminosities we observed a transition from Z source to atoll source behavior. These transitions between subclasses primarily manifest themselves as changes in the shapes of the tracks in X-ray color-color (CD) and hardness-intensity diagrams (HID), but they are accompanied by changes in the kHz quasi-periodic oscillations, broadband variability, burst behavior, and/or X-ray spectra. We find that for most of the outburst the low-energy X-ray flux is a good parameter to track the gradual evolution of the tracks in CD and HID, allowing us to resolve the evolution of the source in greater detail than before and relate the observed properties to other NS-LMXBs. We further find that during the transition from Z to atoll, characteristic behavior known as the atoll upper banana can equivalently be described as the final stage of a weakening Z source flaring branch, thereby blurring the line between the two subclasses. Our findings strongly suggest that the wide variety in behavior observed in NS-LXMBs with different luminosities can be linked through changes in a single variable parameter, namely the mass accretion rate, without the need for additional differences in the neutron star parameters or viewing angle. We briefly discuss the implications of our findings for the spectral changes observed in NS-LMXBs and suggest that, contrary to what is often assumed, the position along the color-color tracks of Z sources is not determined by the instantaneous mass accretion rate.en_US
dc.description.sponsorshipGoddard Space Flight Centeren_US
dc.language.isoen_US
dc.publisherIOP Publishingen_US
dc.relation.isversionofhttp://dx.doi.org/10.1088/0004-637x/719/1/201en_US
dc.rightsArticle is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.en_US
dc.sourceAmerican Astronomical Societyen_US
dc.titleXTE J1701–462 AND ITS IMPLICATIONS FOR THE NATURE OF SUBCLASSES IN LOW-MAGNETIC-FIELD NEUTRON STAR LOW-MASS X-RAY BINARIESen_US
dc.typeArticleen_US
dc.identifier.citationHoman, Jeroen, Michiel van der Klis, Joel K. Fridriksson, Ronald A. Remillard, Rudy Wijnands, Mariano Méndez, Dacheng Lin, et al. “XTE J1701–462 AND ITS IMPLICATIONS FOR THE NATURE OF SUBCLASSES IN LOW-MAGNETIC-FIELD NEUTRON STAR LOW-MASS X-RAY BINARIES.” The Astrophysical Journal 719, no. 1 (July 19, 2010): 201–212. © 2010 The American Astronomical Societyen_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Physicsen_US
dc.contributor.departmentMIT Kavli Institute for Astrophysics and Space Researchen_US
dc.contributor.mitauthorHoman, Jeroenen_US
dc.contributor.mitauthorFridriksson, Joel K.en_US
dc.contributor.mitauthorRemillard, Ronald Alanen_US
dc.contributor.mitauthorLewin, Walter H. G.en_US
dc.relation.journalAstrophysical Journalen_US
dc.eprint.versionFinal published versionen_US
dc.type.urihttp://purl.org/eprint/type/JournalArticleen_US
eprint.statushttp://purl.org/eprint/status/PeerRevieweden_US
dspace.orderedauthorsHoman, Jeroen; van der Klis, Michiel; Fridriksson, Joel K.; Remillard, Ronald A.; Wijnands, Rudy; Méndez, Mariano; Lin, Dacheng; Altamirano, Diego; Casella, Piergiorgio; Belloni, Tomaso M.; Lewin, Walter H. G.en_US
mit.licensePUBLISHER_POLICYen_US
mit.metadata.statusComplete


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