English

The universal red-giant oscillation pattern; an automated determination with CoRoT data

Solar and Stellar Astrophysics 2015-05-20 v1

Abstract

The CoRoT and Kepler satellites have provided thousands of red-giant oscillation spectra. The analysis of these spectra requires efficient methods for identifying all eigenmode parameters. The assumption of new scaling laws allows us to construct a theoretical oscillation pattern. We then obtain a highly precise determination of the large separation by correlating the observed patterns with this reference. We demonstrate that this pattern is universal and are able to unambiguously assign the eigenmode radial orders and angular degrees. This solves one of the current outstanding problems of asteroseismology hence allowing precise theoretical investigation of red-giant interiors.

Keywords

Cite

@article{arxiv.1011.1928,
  title  = {The universal red-giant oscillation pattern; an automated determination with CoRoT data},
  author = {B. Mosser and K. Belkacem and M. J. Goupil and E. Michel and Y. Elsworth and C. Barban and T. Kallinger and S. Hekker and J. DeRidder and R. Samadi and F. Baudin and F. J. G. Pinheiro and M. Auvergne and A. Baglin and C. Catala},
  journal= {arXiv preprint arXiv:1011.1928},
  year   = {2015}
}

Comments

Accepted in A&A letters

R2 v1 2026-06-21T16:40:49.237Z