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dc.contributor.authorWang, Jingyi
dc.contributor.authorMastroserio, Guglielmo
dc.contributor.authorKara, Erin
dc.contributor.authorGarcía, Javier A
dc.contributor.authorIngram, Adam
dc.contributor.authorConnors, Riley
dc.contributor.authorvan der Klis, Michiel
dc.contributor.authorDauser, Thomas
dc.contributor.authorSteiner, James F
dc.contributor.authorBuisson, Douglas JK
dc.contributor.authorHoman, Jeroen
dc.contributor.authorLucchini, Matteo
dc.contributor.authorFabian, Andrew C
dc.contributor.authorBright, Joe
dc.contributor.authorFender, Rob
dc.contributor.authorCackett, Edward M
dc.contributor.authorRemillard, Ron A
dc.date.accessioned2022-04-20T15:44:13Z
dc.date.available2022-04-20T15:44:13Z
dc.date.issued2021
dc.identifier.urihttps://hdl.handle.net/1721.1/141969
dc.description.abstract<jats:title>Abstract</jats:title> <jats:p>We analyze five epochs of Neutron star Interior Composition Explorer (NICER) data of the black hole X-ray binary MAXI J1820+070 during the bright hard-to-soft state transition in its 2018 outburst with both reflection spectroscopy and Fourier-resolved timing analysis. We confirm the previous discovery of reverberation lags in the hard state, and find that the frequency range where the (soft) reverberation lag dominates decreases with the reverberation lag amplitude increasing during the transition, suggesting an increasing X-ray emitting region, possibly due to an expanding corona. By jointly fitting the lag-energy spectra in a number of broad frequency ranges with the reverberation model <jats:monospace>reltrans</jats:monospace>, we find the increase in reverberation lag is best described by an increase in the X-ray coronal height. This result, along with the finding that the corona contracts in the hard state, suggests a close relationship between spatial extent of the X-ray corona and the radio jet. We find the corona expansion (as probed by reverberation) precedes a radio flare by ∼5 days, which may suggest that the hard-to-soft transition is marked by the corona expanding vertically and launching a jet knot that propagates along the jet stream at relativistic velocities.</jats:p>en_US
dc.language.isoen
dc.publisherAmerican Astronomical Societyen_US
dc.relation.isversionof10.3847/2041-8213/ABEC79en_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.sourceThe American Astronomical Societyen_US
dc.titleDisk, Corona, Jet Connection in the Intermediate State of MAXI J1820+070 Revealed by NICER Spectral-timing Analysisen_US
dc.typeArticleen_US
dc.identifier.citationWang, Jingyi, Mastroserio, Guglielmo, Kara, Erin, García, Javier A, Ingram, Adam et al. 2021. "Disk, Corona, Jet Connection in the Intermediate State of MAXI J1820+070 Revealed by NICER Spectral-timing Analysis." The Astrophysical Journal Letters, 910 (1).
dc.contributor.departmentMIT Kavli Institute for Astrophysics and Space Research
dc.relation.journalThe Astrophysical Journal Lettersen_US
dc.eprint.versionFinal published versionen_US
dc.type.urihttp://purl.org/eprint/type/JournalArticleen_US
eprint.statushttp://purl.org/eprint/status/PeerRevieweden_US
dc.date.updated2022-04-20T15:40:52Z
dspace.orderedauthorsWang, J; Mastroserio, G; Kara, E; García, JA; Ingram, A; Connors, R; van der Klis, M; Dauser, T; Steiner, JF; Buisson, DJK; Homan, J; Lucchini, M; Fabian, AC; Bright, J; Fender, R; Cackett, EM; Remillard, RAen_US
dspace.date.submission2022-04-20T15:40:55Z
mit.journal.volume910en_US
mit.journal.issue1en_US
mit.licensePUBLISHER_POLICY
mit.metadata.statusAuthority Work and Publication Information Neededen_US


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