RESEARCH
<< back
Weighing stars from birth to death: mass determination methods across the HRD

A. M. Serenelli, A. Weiss, C. Aerts, G. Angelou, David Baroch, N. Bastian, P. G. Beck, M. Bergemann, Joachim M. Bestenlehner, Ian Czekala, Nancy Elias-Rosa, Ana Escorza, V. Van Eylen, D. Feuillet, D. Gandolfi, M. Gieles, L. Girardi, Y. Lebreton, N. Lodieu, M. Martig, M. Miller Bertolami, J. S. G. Mombarg, J. C. Morales, A. Moya, B. Nsamba, K. Pavlovski, May G. Pedersen, I. Ribas, F. R. N. Schneider, V. Silva Aguirre, K. G. Stassun, E. Tolstoy, Pier-Emmanuel Tremblay, K. Zwintz

Abstract
The mass of a star is the most fundamental parameter for its structure, evolution, and final fate. It is particularly important for any kind of stellar archaeology and characterization of exoplanets. There exist a variety of methods in astronomy to estimate or determine it. In this review we present a significant number of such methods, beginning with the most direct and model-independent approach using detached eclipsing binaries. We then move to more indirect and model-dependent methods, such as the quite commonly used isochrone or stellar track fitting. The arrival of quantitative asteroseismology has opened a completely new approach to determine stellar masses and to complement and improve the accuracy of other methods. We include methods for different evolutionary stages, from the pre-main sequence to evolved (super)giants and final remnants. For all methods uncertainties and restrictions will be discussed. We provide lists of altogether more than 200 benchmark stars with relative mass accuracies between [0.3,2]% for the covered mass range of M∈[0.1,16]M, 75% of which are stars burning hydrogen in their core and the other 25% covering all other evolved stages. We close with a recommendation how to combine various methods to arrive at a “mass-ladder” for stars.

Keywords
Stars: fundamental parameters; Stars: evolution; Stars: binaries: eclipsing; Stars: planetary systems; Galaxy: stellar content; Methods: numerical; Asteroseismology; Astrophysics - Solar and Stellar Astrophysics

The Astronomy and Astrophysics Review
Volume 29, Number 4, Page 146
2021 May

>> ADS>> DOI

Faculdade de Ciências da Universidade de Lisboa Universidade do Porto Faculdade de Ciências e Tecnologia da Universidade de Coimbra
Fundação para a Ciência e a Tecnologia COMPETE 2020 PORTUGAL 2020 União Europeia