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dc.contributor.authorLyubchik, Yuri
dc.contributor.authorJones, H.R.A.
dc.contributor.authorPavlenko, Yakiv V.
dc.contributor.authorPinfield, D.J.
dc.contributor.authorCovey, Kevin R.
dc.date.accessioned2012-08-06T10:00:29Z
dc.date.available2012-08-06T10:00:29Z
dc.date.issued2012-05
dc.identifier.citationLyubchik , Y , Jones , H R A , Pavlenko , Y V , Pinfield , D J & Covey , K R 2012 , ' Values of v sin i-s for late-type stars from spectral synthesis in the K-band region. ' , Monthly Notices of the Royal Astronomical Society , vol. 422 , no. 3 , pp. 2195-2201 . https://doi.org/10.1111/j.1365-2966.2012.20762.x
dc.identifier.issn0035-8711
dc.identifier.otherPURE: 949255
dc.identifier.otherPURE UUID: 189e7f37-816e-41f0-add8-5aa03905f05a
dc.identifier.otherWOS: 000303858400025
dc.identifier.otherScopus: 84860917038
dc.identifier.urihttp://hdl.handle.net/2299/8789
dc.description.abstractWe analyse medium-resolution spectra (R similar to 18 000) of 19 late type dwarfs in order to determine v sin i values using synthetic rather than observational template spectra. For this purpose, observational data around 2.2 mu m for stars with spectral classes from G8V to M9.5V were modelled. We find that the Na i (2.2062- and 2.2090-mu m) and 12CO 20 band features are modelled well enough to use for v sin i determination without the need for suitable observational template spectra. Within the limit of the resolution of our spectra, we use synthetic spectra templates to derive v sin i values consistent with those derived in the optical regime using observed templates. We quantify the errors in our v sin i determination due to incorrect choice of model parameters Teff, log g, vmicro, [Fe/H] or full width at half-maximum and show that they are typically less than 10 per cent. We note that the spectral resolution of our data (similar to 16 km s-1) limited this study to relatively fast rotators and that a resolution of 60 000 will be required to access most late-type dwarfs.en
dc.format.extent7
dc.language.isoeng
dc.relation.ispartofMonthly Notices of the Royal Astronomical Society
dc.rightsEmbargoed
dc.titleValues of v sin i-s for late-type stars from spectral synthesis in the K-band region.en
dc.contributor.institutionSchool of Physics, Astronomy and Mathematics
dc.contributor.institutionScience & Technology Research Institute
dc.contributor.institutionCentre for Astrophysics Research
dc.description.statusPeer reviewed
dc.date.embargoedUntil2012-12-01
dc.relation.schoolSchool of Physics, Astronomy and Mathematics
dc.description.versiontypeFinal Accepted Version
dcterms.dateAccepted2012-05
rioxxterms.versionAM
rioxxterms.versionofrecordhttps://doi.org/10.1111/j.1365-2966.2012.20762.x
rioxxterms.licenseref.startdate2012-12-01
rioxxterms.typeJournal Article/Review
herts.preservation.rarelyaccessedtrue
herts.date.embargo2012-12-01
herts.rights.accesstypeEmbargoed


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