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
Triggered Star Formation Inside the Shell of a Wolf-Rayet Bubble as the origin of the Solar System
TL;DR: In this article, it was shown that 1-16% of all Sun-like stars could have formed in such a setting of triggered star formation in the shell of a Wolf-Rayet (W-R) bubble.
Journal ArticleDOI
On the history of the interplay between HD 56925 and NGC 2359
TL;DR: In this paper, the interaction between the Wolf-Rayet star HD 56925 and the surrounding neutral gas was investigated by analyzing the large-scale 21cm-HI emission and by mapping the nebula in the J = 1-0 and J = 2-1 lines of CO.
Journal ArticleDOI
A newly discovered double–double candidate microquasar in NGC 300
R. Urquhart,R. Urquhart,Roberto Soria,Roberto Soria,Roberto Soria,Manfred W. Pakull,James Miller-Jones,G. E. Anderson,Richard M. Plotkin,Christian Motch,T. J. Maccarone,A. F. McLeod,Simone Scaringi +12 more
TL;DR: In this paper, Chandra images show four discrete X-ray knots aligned in the plane of the sky over a length of ≈150-pc, and they are well fitted with a thermal plasma model.
Journal ArticleDOI
Survey of O VI absorption in the Large Magellanic Cloud
TL;DR: In this paper, a survey of interstellar O VI absorption in the Large Magellanic Cloud (LMC) towards 70 lines of sight based on FarUltravioletSpectroscopicExplorer (FUSE) observations is presented.
Journal ArticleDOI
An Interstellar Conduction Front within a Wolf-Rayet Ring Nebula Observed with the Goddard High Resolution Spectrograph
Bram Boroson,Bram Boroson,Richard McCray,Christina Oelfke Clark,Jonathan D. Slavin,Mordecai-Mark Mac Low,You-Hua Chu,Dave Van Buren +7 more
TL;DR: In this paper, the authors used the High Resolution Spectrograph aboard the Hubble Space Telescope to obtain high signal-to-noise ratio (S/N 200-600 per 17 km s-1 resolution element) spectra of narrow absorption lines toward the Wolf-Rayet star HD 50896.