Detached shells as tracers of asymptotic giant branch-interstellar medium bow shocks

Wareing, C. J, Zijlstra, Albert A, Speck, Angela K., O'Brien, T. J, Ueta, Toshiya, Elitzur, M, Gehrz, R. D, Herwig, F, Izumiura, H, Matsuura, M ORCID: https://orcid.org/0000-0002-5529-5593, Meixner, M, Stencel, R. E and Szczerba, R 2006. Detached shells as tracers of asymptotic giant branch-interstellar medium bow shocks. Monthly Notices of the Royal Astronomical Society: Letters 372 (1) , L63–L67. 10.1111/j.1745-3933.2006.00227.x

Full text not available from this repository.

Abstract

New Spitzer imaging observations have revealed the structure around the Mira variable star R Hya to be a one-sided parabolic arc 100 arcsec to the west, stretching from north to south. We successfully model R Hya and its surroundings in terms of an interaction of the stellar wind from an asymptotic giant branch (AGB) star with the interstellar medium (ISM) the star moves through. Our three-dimensional hydrodynamic simulation reproduces the structure as a bow shock into the oncoming ISM. We propose this as another explanation of detached shells around such stars, which should be considered alongside current theories of internal origin. The simulation predicts the existence of a tail of ram-pressure-stripped AGB material stretching downstream. Indications for such a tail behind R Hya are seen in IRAS maps....

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Physics and Astronomy
Publisher:	Oxford University Press
ISSN:	1745-3925
Date of Acceptance:	31 July 2006
Last Modified:	23 May 2024 09:45
URI:	https://orca.cardiff.ac.uk/id/eprint/168073

Actions (repository staff only)

Edit Item