The Interaction of Asymptotic Giant Branch Stars with the Interstellar Medium
Abstract
We study the hydrodynamical behavior of the gas expelled by moving Asymptotic Giant Branch Stars interacting with the ISM. Our models follow the wind modulations prescribed by stellar evolution calculations, and we cover a range of expected relative velocities (10 to 100 km/s), ISM densities (between 0.01 and 1 cm-3), and stellar progenitor masses (1 and 3.5 Msun). We show how and when bow-shocks, and cometary-like structures form, and in which regime the shells are subject to instabilities. Finally, we analyze the results of the simulations in terms of the different kinematical stellar populations expected in the Galaxy.
Keywords
Cite
@article{arxiv.1201.3378,
title = {The Interaction of Asymptotic Giant Branch Stars with the Interstellar Medium},
author = {Eva Villaver and Arturo Manchado and Guillermo Garcia-Segura},
journal= {arXiv preprint arXiv:1201.3378},
year = {2015}
}
Comments
ApJ in press, 42 pages, 12 figures, movies of the simulations will be available in the published electronic version of the paper