Binary Interaction Dominates the Evolution of Massive Stars

Author:

Sana H.1,de Mink S. E.23,de Koter A.14,Langer N.5,Evans C. J.6,Gieles M.7,Gosset E.8,Izzard R. G.5,Le Bouquin J.-B.9,Schneider F. R. N.5

Affiliation:

1. Astronomical Institute Anton Pannekoek, Amsterdam University, Science Park 904, 1098 XH, Amsterdam, Netherlands.

2. Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218, USA.

3. Department of Physics and Astronomy, Johns Hopkins University, Baltimore, MD 21218, USA.

4. Astronomical Institute, Utrecht University, Princetonplein 5, 3584 CC, Utrecht, Netherlands.

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

6. UK Astronomy Technology Centre, Royal Observatory Edinburgh, Blackford Hill, Edinburgh EH9 3HJ, UK.

7. Institute of Astronomy, University of Cambridge, Madingley Road, Cambridge CB3 0HA, UK.

8. Fonds de la Recherche Scientifique—FNRS, Institut d’Astrophysique, Liège University, Allée du 6 Août 17, B-4000 Liège, Belgium.

9. Université Joseph Fourier–Grenoble 1/CNRS–Institut National des Sciences de l’Univers, Institut de Planétologie et d’Astrophysique de Grenoble UMR 5274, Grenoble, France.

Abstract

Star Partners Stars more massive than eight times the mass of the Sun are rare and short-lived, yet they are fundamentally important because they produce all the heavy elements in the universe, such as iron, silicon, and calcium. Sana et al. (p. 444 ) examined the properties of a sample of ∼70 massive stars in six stellar clusters located nearby in our galaxy. Over half of the stars in the sample belong to a binary system and, during the course of their lifetimes, most of the stars in these binaries will interact with one another, either by merging or exchanging mass. Binary interaction may thus affect the evolution of the majority of massive stars.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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