JHKs time-series observations of a few ultracool dwarfs

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dc.contributor.authorKoen, Chris
dc.contributor.authorTanabe, T.
dc.contributor.authorTamura, M.
dc.contributor.authorKusakabe, N.
dc.date.accessioned2013-11-03T20:18:14Z
dc.date.available2013-11-03T20:18:14Z
dc.date.issued2005
dc.description.abstractThe M8.5 object SSSPM J0109−5101 has recently been shown to be both a periodic and a flaring variable, based on optical observations in the extreme red. More than 16 h of monitoring in the near-infrared (NIR) reported here failed to show any variability. Similarly, no NIR variability could be detected in intensive monitoring of three other suspected optical variables. This paper also reports on photometry of half a dozen targets monitored over a few weeks, and on the comparison of intensive monitoring at different epochs. In only one case, that of the T dwarf binary Indi Bab, is there good evidence for variability. Our results allow stringent limits to be placed on the NIR variability levels in a large sample of ultracool dwarfs.en_US
dc.description.accreditationWeb of Scienceen_US
dc.identifier.citationKoen, C. et al. (2005). JHKs time-series observations of a few ultracool dwarfs. Monthly Notices of the Royal Astronomical Society, 362: 727–736en_US
dc.identifier.issn0035-8711
dc.identifier.urihttp://hdl.handle.net/10566/794
dc.language.isoenen_US
dc.privacy.showsubmitterfalse
dc.publisherOxford University Pressen_US
dc.rights© 2005 copyright Oxford University Press. This file may be freely used for educational purposes, as long as it is not altered in any way. Acknowledgement of the authors and the source is required.
dc.source.urihttp://dx.doi.org/10.1111/j.1365-2966.2005.09280.x
dc.status.ispeerreviewedtrue
dc.subjectTechniques: photometricen_US
dc.subjectStars: individual: Indi Baben_US
dc.subjectStars: individual: SSSPM J0109−5101en_US
dc.subjectStars: low-mass, brown dwarfsen_US
dc.subjectStars: variables: otheren_US
dc.titleJHKs time-series observations of a few ultracool dwarfsen_US
dc.typeArticleen_US

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Prof. Chris Koen