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dc.contributor.authorForbrich, Jan
dc.contributor.authorRodríguez, Luis F.
dc.contributor.authorPalau, Aina
dc.contributor.authorZapata, Luis A.
dc.contributor.authorMuzerolle, James
dc.contributor.authorGutermuth, Robert A.
dc.date.accessioned2017-07-10T14:56:26Z
dc.date.available2017-07-10T14:56:26Z
dc.date.issued2015-11-12
dc.identifier.citationForbrich , J , Rodríguez , L F , Palau , A , Zapata , L A , Muzerolle , J & Gutermuth , R A 2015 , ' Radio monitoring of the periodically variable IR source LRLL 54361: No direct correlation between the radio and IR emissions ' The Astrophysical Journal , vol. 814 , no. 1 . https://doi.org/10.1088/0004-637X/814/1/15
dc.identifier.issn0004-637X
dc.identifier.otherPURE: 11212282
dc.identifier.otherPURE UUID: ffe09e62-6b37-4604-8780-641eccb7ddcb
dc.identifier.otherArXiv: http://arxiv.org/abs/1510.01233v1
dc.identifier.otherScopus: 84948654812
dc.identifier.urihttp://hdl.handle.net/2299/18860
dc.descriptionJ. Forbrich, “Radio monitoring of the periodically variable IR source LRLL 54361: No direct correlation between the radio and IR emissions”, The Astrophysical Journal, Vol. 814(1), November 2015. © 2015. The American Astronomical Society.
dc.description.abstractLRLL 54361 is an infrared source located in the star forming region IC 348 SW. Remarkably, its infrared luminosity increases by a factor of 10 during roughly one week every 25.34 days. To understand the origin of these remarkable periodic variations, we obtained sensitive 3.3 cm JVLA radio continuum observations of LRLL 54361 and its surroundings in six different epochs: three of them during the IR-on state and three during the IR-off state. The radio source associated with LRLL 54361 remained steady and did not show a correlation with the IR variations. We suggest that the IR is tracing the results of fast (with a timescale of days) pulsed accretion from an unseen binary companion, while the radio traces an ionized outflow with an extent of $\sim$100 AU that smooths out the variability over a period of order a year. The average flux density measured in these 2014 observations, 27$\pm$5 $\mu$Jy, is about a factor of two less than that measured about 1.5 years before, $53\pm$11 $\mu$Jy, suggesting that variability in the radio is present, but over larger timescales than in the IR. We discuss other sources in the field, in particular two infrared/X-ray stars that show rapidly varying gyrosynchrotron emission.en
dc.format.extent12
dc.language.isoeng
dc.relation.ispartofThe Astrophysical Journal
dc.rights/dk/atira/pure/core/openaccesspermission/open
dc.subjectastro-ph.SR
dc.subjectastro-ph.GA
dc.titleRadio monitoring of the periodically variable IR source LRLL 54361: No direct correlation between the radio and IR emissionsen
dc.contributor.institutionSchool of Physics, Astronomy and Mathematics
dc.contributor.institutionCentre for Astrophysics Research
dc.description.statusPeer reviewed
dc.relation.schoolSchool of Physics, Astronomy and Mathematics
dc.description.versiontypeFinal Published version
dcterms.dateAccepted2015-10-05
rioxxterms.versionAM
rioxxterms.versionVoR
rioxxterms.versionofrecordhttps://doi.org/10.1088/0004-637X/814/1/15
rioxxterms.typeJournal Article/Review
herts.preservation.rarelyaccessedtrue
herts.rights.accesstypeopenAccess


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