A bayesian approach to scaling relations for amplitudes of solar-like oscillations in Kepler stars

E. Corsaro, H. E. Fröhlich, A. Bonanno, D. Huber, T. R. Bedding, O. Benomar, J. De Ridder, D. Stello

Research output: Contribution to journalArticlepeer-review

Abstract

We investigate different amplitude scaling relations adopted for the asteroseismology of stars that show solar-like oscillations. Amplitudes are among the most challenging asteroseismic quantities to handle because of the large uncertainties that arise in measuring the background level in the star's power spectrum. We present results computed by means of a Bayesian inference on a sample of 1640 stars observed with Kepler, spanning from main sequence to red giant stars, for 12 models used for amplitude predictions and exploiting recently wellcalibrated effective temperatures from Sloan Digital Sky Survey photometry. We test the candidate amplitude scaling relations by means of a Bayesian model comparison. We find the model having a separate dependence upon the mass of the stars to be largely the most favoured one. The differences among models and the differences seen in their free parameters from early to late phases of stellar evolution are also highlighted.

Original languageEnglish (US)
Pages (from-to)2313-2326
Number of pages14
JournalMonthly Notices of the Royal Astronomical Society
Volume430
Issue number3
DOIs
StatePublished - 2013

Keywords

  • Methods: data analysis
  • Methods: statistical
  • Stars: evolution
  • Stars: late-type
  • Stars: oscillations

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

Fingerprint Dive into the research topics of 'A bayesian approach to scaling relations for amplitudes of solar-like oscillations in Kepler stars'. Together they form a unique fingerprint.

Cite this