Research articles

search articles

My Pages

Stat

Members: 3645
Articles: 2'501'711
Articles rated: 2609

20 April 2024

» arxiv » 1103.4085

Article overview

Solar-like oscillations in KIC11395018 and KIC11234888 from 8 months of Kepler data
S. Mathur ; R. Handberg ; T.L. Campante ; R.A. Garcia ; T. Appourchaux ; T.R. Bedding ; B. Mosser ; W.J. Chaplin ; J. Ballot ; O. Benomar ; A. Bonanno ; E. Corsaro ; P. Gaulme ; S. Hekker ; C. Regulo ; D. Salabert ; G. Verner ; T.R. White ; I.M. Brandao ; O.L. Creevey ; G. Dogan ; Y. Elsworth ; D. Huber ; S.J. Hale ; G. Houdek ; C. Karoff ; T.S. Metcalfe ; J.Molenda-Zakowicz ; M.J.P.F.G. Monteiro ; M.J. Thompson ; J. Christensen-Dalsgaard ; R.L. Gilliland ; S.D. Kawaler ; H. Kjeldsen ; E.V. Quintana ; D.T. Sanderfer ; S.E. Seader ;
Date:	21 Mar 2011
Abstract:	We analyze the photometric short-cadence data obtained with the Kepler Mission during the first eight months of observations of two solar-type stars of spectral types G and F: KIC 11395018 and KIC 11234888 respectively, the latter having a lower signal-to-noise ratio compared to the former. We estimate global parameters of the acoustic (p) modes such as the average large and small frequency separations, the frequency of the maximum of the p-mode envelope and the average linewidth of the acoustic modes. We were able to identify and to measure 22 p-mode frequencies for the first star and 16 for the second one even though the signal-to-noise ratios of these stars are rather low. We also derive some information about the stellar rotation periods from the analyses of the low-frequency parts of the power spectral densities. A model-independent estimation of the mean density, mass and radius are obtained using the scaling laws. We emphasize the importance of continued observations for the stars with low signal-to-noise ratio for an improved characterization of the oscillation modes. Our results offer a preview of what will be possible for many stars with the long data sets obtained during the remainder of the mission.
Source:	arXiv, 1103.4085
Services:	Forum \| Review \| PDF \| Favorites

No review found.

Did you like this article?

This article or document is ...
important:
of broad interest:
readable:
new:
correct:
Global appreciation:

Note: answers to reviews or questions about the article must be posted in the forum section.
Authors are not allowed to review their own article. They can use the forum section.

browser Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)

ScienXe.org
» my Online CV
» Free

News, job offers and information for researchers and scientists:

home

contact

sitemap