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dc.contributor.authorMiguel Agustino, Enrique de 
dc.contributor.authorPatterson, Joseph
dc.contributor.authorMyers, J.
dc.identifier.citationMiguel Agustino, E. de, Patterson, J., Jones, J. L., Morelle, E., Boyd, D. R. S., Stein, W., … Myers, G. (2017). Superhumps and spin-period variations in the intermediate polar RX J2133.7+5107. Monthly Notices of the Royal Astronomical Society, stx107.
dc.identifier.issn1365-2966 (electrónico)
dc.description.abstractWe report the results of long-term time series photometry on RX J2133.7+5107, an intermediate polar distinguished by its long orbital period (7.14 h) and rapid rotation (571 s) of its white dwarf. The light curves show the presence of a conspicuous modulation with a 6.72-h period, 6.1 ± 0.1 per cent shorter than the orbital period, which we interpret as a (negative) superhump associated with the nodal precession of the accretion disc. This detection may prove a challenge to the idea that superhumps are limited to binaries of short orbital period. Our rotational timings over the 7 yr spanned by our observations show spin-up at a rate of 3.41(2) ms yr-1 or, equivalently, on a time-scale |P/P?|=0.17×106 yr. The latter is sensibly shorter than the time-scale of spin period variations reported for other intermediate polars, possibly due to a greater accretion rate.es_ES
dc.description.sponsorshipWe thank the National Science Foundation for support of this research (AST-1211129 and AST-1615456), and NASA through HST-G0-13630. EdM acknowledges financial support from the Ministerio de Educacion, Cultura y Deporte (Spain) under the Mobility Program Salvador de Madariaga (PRX15/00521).es_ES
dc.publisherOxford University Presses_ES
dc.rightsAtribución-NoComercial-SinDerivadas 3.0 España*
dc.subject.otherAccretion discs
dc.subject.otherRX J2133.7+5107
dc.subject.otherCataclysmic variables
dc.titleSuperhumps and spin-period variations in the intermediate polar RX J2133.7+5107es_ES
dc.relation.projectIDinfo:eu-repo/grantAgreement/Ministerio de Educacion, Cultura y Deporte (Spain) under the Mobility Program Salvador de Madariaga [PRX15/00521]es_ES

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