The nature of B supergiants: Clues from a steep drop in rotation rates at 22 000 K

41Citations
Citations of this article
13Readers
Mendeley users who have this article in their library.

Abstract

The location of B supergiants in the Hertzsprung-Russell diagram (HRD) represents a long-standing problem in massive star evolution. Here we propose their nature may be revealed utilising their rotational properties, and we highlight a steep drop in massive star rotation rates at an effective temperature of 22  000 K. We discuss two potential explanations for it. On the one hand, the feature might be due to the end of the main sequence, which could potentially constrain the core overshooting parameter. On the other hand, the feature might be the result of enhanced mass loss at the predicted location of the bi-stability jump. We term this effect "bi-stability braking" and discuss its potential consequences for the evolution of massive stars. © 2010 ESO.

Cite

CITATION STYLE

APA

Vink, J. S., Brott, I., Gräfener, G., Langer, N., De Koter, A., & Lennon, D. J. (2010). The nature of B supergiants: Clues from a steep drop in rotation rates at 22 000 K. Astronomy and Astrophysics, 512(8). https://doi.org/10.1051/0004-6361/201014205

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Save time finding and organizing research with Mendeley

Sign up for free