Work

Dust distribution in circumstellar shells

Year: 2011

Type: article

Abstract: We present numerical simulations of the hydrodynamical interactions that produce circumstellar shells. These simulations include several scenarios, such as wind-wind interaction and wind-ISM collisions. In our calculations we have taken into account the presence of dust in the stellar wind. Our results show that, while small dust grains tend to be strongly coupled to the gas, large dust grains are only weakly coupled. As a result, the distribution of the large dust grains is not representative of the gas distribution. Combining these results with observations may give us a new way of validating hydrodynamical models of the circumstellar medium.

Source: Proceedings of the International Astronomical Union

DOI: 10.1017/s1743921312012203

Authors: Allard-Jan van Marle, Zakaria Meliani, Rony Keppens, Leen Decin

Institution: KU Leuven

Language: English

Topic: Astrophysics and Star Formation Studies

Subfield: Astronomy and Astrophysics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: bronze

Funder: Fonds Wetenschappelijk Onderzoek

Award: G7319609572