By NelmaS on Sex, 01/12/2017 - 21:21
School of Physics and Astronomy, University of Birmingham
We call "Mass-Luminosity-like" relations to every data-driven relation for the estimation of the stellar mass or radius as a function of standard stellar observables, such as its effective temperature, luminosity, gravity, mean density, etc. We present a revision of all these relations using a new data sample. This data sample has been obtained collecting every stellar accurate determination in the literature such as asteroseismological determinations, eclipsing binaries, interferometry and/or planetary transits. We have analyzed the data using multivariable errors-in-variable regressions. A new set of data-driven relations has been obtained, sometimes just correcting the current one, with a mean precision up to a 5% in the determination of the stellar M and a 2% in the determination of R.
6 de dezembro de 2017 | 13:30
Centro de Astrofísica da Universidade do Porto (Auditorium)
Rua das Estrelas, 4150-762 Porto