5 papers · 1 filter
Rotational Mixing in Magellanic Clouds B Stars - Theory versus Observation
I. Brott, I. Hunter, A. de Koter +3
We have used VLT FLAMES data to constrain the uncertain physics of rotational mixing in stellar evolution models. We have simulated a population of single stars and find two groups…
Rotation and massive close binary evolution
N. Langer, M. Cantiello, S. -C. Yoon +5
We review the role of rotation in massive close binary systems. Rotation has been advocated as an essential ingredient in massive single star models. However, rotation clearly is m…
Detection of diffuse interstellar bands in M31
M. A. Cordiner, N. L. J. Cox, C. Trundle +5
We investigate the diffuse interstellar band (DIB) spectrum in the interstellar medium of M31. The DEIMOS spectrograph of the W. M. Keck observatory was used to make optical spectr…
Massive stars exploding in a He-rich circumstellar medium. I. Type Ibn (SN 2006jc-like) events
A. Pastorello, S. Mattila, L. Zampieri +26
We present new spectroscopic and photometric data of the type Ibn supernovae 2006jc, 2000er and 2002ao. We discuss the general properties of this recently proposed supernova family…
How Efficient is Rotational Mixing in Massive Stars ?
I. Brott, I. Hunter, P. Anders +1
The VLT-Flames Survey for Massive Stars (Evans05,Evans06) provides recise measurements of rotational velocities and nitrogen surface abundances of massive stars in the Magellanic C…