EXO 2030+375 Restarts in Reverse

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dc.contributor.authorKretschmar, P.
dc.contributor.authorFuerst, F.
dc.contributor.authorWilson-Hodge, C.A.
dc.contributor.authorBlay, P.
dc.contributor.authorKajava, J.
dc.contributor.authorAlfonso-Garzón, J.
dc.contributor.authorKühnel, M.
dc.contributor.authorKreykenbohm, I.
dc.contributor.authorWilms, J.
dc.contributor.authorJenke, P.A.
dc.contributor.authorPottschmidt, Katja
dc.date.accessioned2023-09-06T13:35:53Z
dc.date.available2023-09-06T13:35:53Z
dc.date.issued2017-08-23
dc.description11th INTEGRAL Conference Gamma-Ray Astrophysics in Multi-Wavelength Perspective, 10-14 October 2016, Amsterdam, The Netherlandsen
dc.description.abstractThe Be X-ray binary pulsar EXO 2030+375, first detected in 1985, has shown a significant de- tected X-ray outburst at nearly every periastron passage of its 46-day orbit for the past 25 years, with one low state accompanied by a torque reversal in the 1990s. In early 2015 the outbursts progressively became fainter and less regular while the monotonic spin-up flattened. At the same time a decrease in the Hα line equivalent width was reported, indicating a change in the disk surrounding the mass donor. In order to explore the source behaviour in the poorly explored low-flux state with a possible tran- sition to a state of centrifugal inhibition of accretion we have undertaken an observing campaign with Swift/XRT, NuSTAR and the Nordic Optical Telescope (NOT). This conference contribution reports the preliminary results obtained from our campaign.en
dc.description.urihttps://pos.sissa.it/285/076en
dc.format.extent7 pagesen
dc.genreconference papers and proceedingsen
dc.identifierdoi:10.13016/m2va2b-fhug
dc.identifier.citationKretschmar, Peter, Felix Fuerst, Colleen A. Wilson-Hodge, Pere Blay, Jari Kajava, Julia Alfonso-Garzón, Matthias Kühnel, et al. “EXO 2030+375 Restarts in Reverse.” In Proceedings of 11th INTEGRAL Conference Gamma-Ray Astrophysics in Multi-Wavelength Perspective — PoS(INTEGRAL2016), 285:076. SISSA Medialab, 2017. https://doi.org/10.22323/1.285.0076.en
dc.identifier.urihttps://doi.org/10.22323/1.285.0076
dc.identifier.urihttp://hdl.handle.net/11603/29549
dc.language.isoenen
dc.publisherProceedings of Scienceen
dc.relation.isAvailableAtThe University of Maryland, Baltimore County (UMBC)
dc.relation.ispartofUMBC Center for Space Sciences and Technology
dc.relation.ispartofUMBC Physics Department
dc.relation.ispartofUMBC Faculty Collection
dc.rightsPublic Domain Mark 1.0*
dc.rightsThis work was written as part of one of the author's official duties as an Employee of the United States Government and is therefore a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law.en
dc.rights.urihttp://creativecommons.org/publicdomain/mark/1.0/*
dc.titleEXO 2030+375 Restarts in Reverseen
dc.typeTexten
dcterms.creatorhttps://orcid.org/0000-0002-4656-6881en

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