Oscillation mode frequencies of 61 main sequence and subgiant stars observed by Kepler

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dc.creator Appourchaux, T.
dc.creator Chaplin, W. J.
dc.creator Garcia, R. A.
dc.creator Gruberbauer, Michael
dc.creator Verner, G. A.
dc.creator Antia, H. M.
dc.creator Benomar, O.
dc.creator Campante, T. L.
dc.creator Davies, G. R.
dc.creator Deheuvels, S.
dc.date.accessioned 2013-11-06T18:44:58Z
dc.date.available 2013-11-06T18:44:58Z
dc.date.issued 2012
dc.identifier.issn 0004-6361
dc.identifier.uri http://library2.smu.ca/xmlui/handle/01/25343
dc.description Publisher's version/PDF
dc.description.abstract Context. Solar-like oscillations have been observed by Kepler and CoRoT in several solar-type stars, thereby providing a way to probe the stars using asteroseismology. Aims. We provide the mode frequencies of the oscillations of various stars required to perform a comparison with those obtained from stellar modelling. Methods. We used a time series of nine months of data for each star. The 61 stars observed were categorised in three groups: simple, F-like and mixed-mode. The simple group includes stars for which the identification of the mode degree is obvious. The F-like group includes stars for which the identification of the degree is ambiguous. The mixed-mode group includes evolved stars for which the modes do not follow the asymptotic relation of low-degree frequencies. Following this categorisation, the power spectra of the 61 main sequence and subgiant stars were analysed using both maximum likelihood estimators and Bayesian estimators, providing individual mode characteristics such as frequencies, linewidths, and mode heights. We developed and describe a methodology for extracting a single set of mode frequencies from multiple sets derived by different methods and individual scientists. We report on how one can assess the quality of the fitted parameters using the likelihood ratio test and the posterior probabilities. Results. We provide the mode frequencies of 61 stars (with their 1-σ error bars), as well as their associated echelle diagrams. en_CA
dc.language.iso en en_CA
dc.publisher EDP Sciences en_CA
dc.relation.uri http://dx.doi.org/10.1051/0004-6361/201218948
dc.rights Article is made available in accordance with the publisher’s policy and is subject to copyright law. Please refer to the publisher’s site. Any re-use of this article is to be in accordance with the publisher’s copyright policy. This posting is in no way granting any permission for re-use to the reader/user.
dc.subject.lcsh Astroseismology
dc.subject.lcsh Stellar oscillations
dc.subject.lcsh Subgiant stars
dc.subject.lcsh Dwarf stars
dc.title Oscillation mode frequencies of 61 main sequence and subgiant stars observed by Kepler en_CA
dc.type Text en_CA
dcterms.bibliographicCitation Astronomy & Astrophysics 543, A54. (2012)


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Article is made available in accordance with the publisher’s policy and is subject to copyright law. Please refer to the publisher’s site. Any re-use of this article is to be in accordance with the publisher’s copyright policy. This posting is in no way granting any permission for re-use to the reader/user.
 
Published Version: http://dx.doi.org/10.1051/0004-6361/201218948
 
 

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