Journal ArticleDOI
Interstellar bubbles. II - Structure and evolution
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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
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Multiple superbubbles in the starburst nucleus of NGC 5253? Implications for mass loss from dwarf galaxies
TL;DR: In this article, the origin of the observed X-ray emission was investigated, focusing on the sources expected to be associated with the starburst region: superbubbles, supernovae, supernova remnants and massive X-rays binaries.
Journal ArticleDOI
Feedback by Massive Black Holes in Dwarf Galaxies
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Highly ionized plasma in the Large Magellanic Cloud: evidence for outflows and a possible galactic wind★
Nicolas Lehner,J. C. Howk +1 more
TL;DR: In this paper, an analysis of the interstellar highly ionized species C IV,S iIV,N V and O VI observed in the Far Ultraviolet Spectroscopic Explorer (FUSE) and Hubble Space Telescope/Space Telescope Imaging Spectrograph (HST/STIS) E140M spectra of four hot stars in the Large Magellanic Cloud (LMC), was conducted.
Journal ArticleDOI
The Turbulent Destruction of Clouds - II. Mach Number Dependence, Mass-loss Rates, and Tail Formation
TL;DR: In this paper, the authors studied the turbulent destruction of a cloud subject to the passage of an adiabatic shock and found that mass loss occurs largely as a result of lower pressure regions on the surface of the cloud away from the stagnation point, whereas in reality Kelvin-Helmholtz (KH) instabilities play a dominant role in cloud destruction.
Journal ArticleDOI
Forming Super Star Clusters in the Central Starburst of NGC 253
Adam K. Leroy,Alberto D. Bolatto,Eve C. Ostriker,Fabian Walter,Mark Gorski,Adam Ginsburg,Nico Krieger,Rebecca C. Levy,David S. Meier,David S. Meier,Elisabeth A. C. Mills,Juergen Ott,Erik Rosolowsky,Todd A. Thompson,Sylvain Veilleux,Laura K. Zschaechner +15 more
TL;DR: In this article, the authors used ALMA to image the 350 GHz dust continuum and molecular line emission from NGC 253 at 2-3 pc FWHM resolution, showing that gas still constitutes a large fraction of the overall mass in these sources.