The BONNSAI Project: A Statistical Comparison of Stars with Stellar Evolution Models

F.R.N. Schneider; N. Langer; H.H.B. Lau; R.G. Izzard

doi:10.1051/eas/1364076

All issues

Volume 64 (2013)

EAS Publications Series, 64 (2013) 423-424

Abstract

Issue		EAS Publications Series Volume 64, 2013 Setting a New Standard in the Analysis of Binary Stars


Page(s)		423 - 424
Section		Posters
DOI		https://doi.org/10.1051/eas/1364076
Published online		25 February 2014

Setting a New Standard in the Analysis of Binary Stars
K. Pavlovski, A. Tkachenko and G. Torres (eds)
EAS Publications Series, 64 (2013) 423–424

The BONNSAI Project: A Statistical Comparison of Stars with Stellar Evolution Models

F.R.N. Schneider, N. Langer, H.H.B. Lau and R.G. Izzard

Argelander-Institut für Astronomie, Universität Bonn, Auf dem Hügel 71, 53121 Bonn, Germany

Abstract

We present a Bayesian method that simultaneously takes all available observables for a given star, their uncertainties and prior knowledge like the initial mass function into account to determine probability distributions of the stellar parameters based on grids of stellar evolutionary models. This allows to homogeneously analyse stars, to determine stellar parameters including robust uncertainties and to identify stars that cannot be reproduced by current stellar models. Our code is available through an easy-to-use web-interface.