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
A Failed Gamma-Ray Burst with Dirty Energetic Jets Spirited Away? New Implications for the Gamma-Ray Burst-Supernova Connection from SN 2002ap
Tomonori Totani,Tomonori Totani +1 more
TL;DR: In this article, the authors examined the jet hypothesis from Type Ic supernova (SN) 2002ap based on the redshifted polarized continuum found in a spectropolarimetric observation and showed that jets should be moving at about 0.23c to a direction roughly perpendicular to us, and the degree of polarization requires a jet kinetic energy of at least 5 × 1050 ergs, a similar energy scale to the GRB jets.
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 +4 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 HII regions.
Journal ArticleDOI
Self-enrichment in globular clusters - I. An analytic approach
TL;DR: In this paper, the authors explore the self-enrichment scenario for Globular Cluster formation and find that the observed spread in the magnitude-metallicity relation can be explained assuming cluster-to-cluster vari- ations of some parameters like thermalization efficiency, mixing efficiency and the Initial Mass Function, as well as variations of the external pressure.
Journal ArticleDOI
XMM-Newton view of the N 206 superbubble in the Large Magellanic Cloud
TL;DR: In this article, the authors performed an analysis of the X-ray superbubble in the N-206 H-ii region in the Large Magellanic Cloud using current generation facilities to gain a better understanding of the physical processes at work in the superbubbles and to improve our knowledge of superbubbl evolution.
Journal ArticleDOI
Fundamental Properties of the Highly Ionized Plasmas in the Milky Way
TL;DR: In this paper, the authors investigate the properties of the cooling transition temperature gas in the interstellar medium (ISM), traced by the high ions, Si IV, C IV, N V, and O VI, helps to constrain the flow of energy from the hot ISM with T >10^6 K to the warm ISM having T < 2x10^4 K.