Journal ArticleDOI
Interstellar bubbles. II - Structure and evolution
Reads0
Chats0
TLDR
In this article, the detailed structure of the interaction of a strong stellar wind with the interstellar medium is presented, including the effects of thermal conduction between the hot interior and the cold shell of swept-up interstellar matter.Abstract:
The detailed structure of the interaction of a strong stellar wind with the interstellar medium is presented. First, an adiabatic similarity solution is given which is applicable at early times. Second, a similarity solution is derived which includes the effects of thermal conduction between the hot (about 1 million K) interior and the cold shell of swept-up interstellar matter. This solution is then modified to include the effects of radiative energy losses. The evolution of an interstellar bubble is calculated, including the radiative losses. The quantitative results for the outer-shell radius and velocity and the column density of highly ionized species such as O VI are within a factor 2 of the approximate results of Castor, McCray, and Weaver (1975). The effect of stellar motion on the structure of a bubble, the hydrodynamic stability of the outer shell, and the observable properties of the hot region and the outer shell are discussed.read more
Citations
More filters
Journal ArticleDOI
Eyes in the sky. Interactions between asymptotic giant branch star winds and the interstellar magnetic field
TL;DR: In this paper, the role of the magnetic field in shaping the extended morphologies of slow dusty winds of asymptotic giant branch (AGB) stars was examined in an effort to pin-point the origin of so-called eye shaped CSEs of three carbon-rich AGB stars.
Journal ArticleDOI
Stellar population of the superbubble N 206 in the LMC. II. Parameters of the OB and WR stars, and the total massive star feedback
Varsha Ramachandran,Wolf-Rainer Hamann,Rainer Hainich,Lidia M. Oskinova,Tomer Shenar,Andreas Sander,Helge Todt,John S. Gallagher +7 more
TL;DR: In this paper, the stellar and wind parameters of all massive stars associated with the N 206 superbubble in the Large Magellanic Cloud (LMC) were analyzed using the FLAMES at ESO's Very Large Telescope (VLT).
Journal ArticleDOI
HI shells in the Leiden/Argentina/Bonn HI survey
Soňa Ehlerová,J. Palouš +1 more
TL;DR: In this paper, the authors used an identification method based on the search of continuous regions of a low brightness temperature that are compatible with given properties of HI shells, and found 333 shells in the whole Galaxy.
Journal ArticleDOI
A new mechanical stellar wind feedback model for the Rosette Nebula
TL;DR: In this article, the authors reproduce the structure of the Rosette Nebula, through simulation of mechanical stellar feedback from a 40'Mₒ star in a thin sheet-like molecular cloud, and form the 135'000'mµ cloud from thermally unstable diffuse interstellar medium under the influence of a realistic background magnetic field with thermal/magnetic pressure equilibrium.
Journal ArticleDOI
On the Heating Efficiency Derived from Observations of Young Super Star Clusters in M82
Sergiy Silich,Guillermo Tenorio-Tagle,Ana Torres-Campos,Casiana Muñoz-Tuñón,Ana Monreal-Ibero,Veronica Melo +5 more
TL;DR: In this article, the authors apply an analytic theory developed in a previous study for M82-A1 to a sample of 10 clusters located in the central zone of the starburst galaxy M82, all surrounded by compact and dense H II regions.