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Evolution II - from the Main Sequence Through Core Helium Burning, M Equals 3M Sun Masses
Icko Iben
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Correction to: How much can children see and report about their experience of a brief glance at a natural scene? [PDF]
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Astrophysics and Space Science, 1995
In the 3 decades since winds from young stars were discovered, there have been many observations of bipolar molecular flows and ionized jets, and it has been recognized that outflows are intimately linked to star formation. Despite many observational clues and theoretical ideas, we still do not have a fully coherent picture of the outflow process.
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In the 3 decades since winds from young stars were discovered, there have been many observations of bipolar molecular flows and ionized jets, and it has been recognized that outflows are intimately linked to star formation. Despite many observational clues and theoretical ideas, we still do not have a fully coherent picture of the outflow process.
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Winds From Main-Sequence And Post-Main-Sequence Stars
2004Abstract Winds of LMYSOs are driven by the rotation of magnetized material (cf. section 5.6). A number of other mechanisms can also drive mass loss. This chapter contains treatments of the mechanisms causing mass loss from stars that have evolved beyond infancy. The concept of the escape speed was used in section 4.2.
T W Hartquist, J E Dyson, D P Ruffle
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1990
We consider here a sequence of chemically homogeneous models in complete (mechanical and thermal) equilibrium with central hydrogen burning. All of them are composed of the same hydrogen-rich mixture, while the stellar mass M varies from model to model along the sequence.
Rudolf Kippenhahn, Alfred Weigert
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We consider here a sequence of chemically homogeneous models in complete (mechanical and thermal) equilibrium with central hydrogen burning. All of them are composed of the same hydrogen-rich mixture, while the stellar mass M varies from model to model along the sequence.
Rudolf Kippenhahn, Alfred Weigert
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2002
The matter in the Universe (its barionic component) is concentrated mainly in stars. Inside galaxies, stars contain more than 90% of the matter, and in galactic clusters, due to the existence of intercluster gas, stars contain more than 70% of the matter. The presence of heavy elements (heavier than carbon) in the intercluster gas, with an abundance of
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The matter in the Universe (its barionic component) is concentrated mainly in stars. Inside galaxies, stars contain more than 90% of the matter, and in galactic clusters, due to the existence of intercluster gas, stars contain more than 70% of the matter. The presence of heavy elements (heavier than carbon) in the intercluster gas, with an abundance of
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2012
The simplicity and the importance of the results obtained for the main sequence suggest the extension of this concept to stars of quite different composition. We can then describe a main sequence as any sequence of homogeneous models with various masses M in complete equilibrium, consisting (mainly) of a certain element which burns in the central ...
Rudolf Kippenhahn +2 more
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The simplicity and the importance of the results obtained for the main sequence suggest the extension of this concept to stars of quite different composition. We can then describe a main sequence as any sequence of homogeneous models with various masses M in complete equilibrium, consisting (mainly) of a certain element which burns in the central ...
Rudolf Kippenhahn +2 more
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Pre-Main-Sequence Binary Stars
Annual Review of Astronomy and Astrophysics, 1994The observational study of pre-main-sequence (PMS) binary stars is in many ways a very young field; most PMS binaries known today were discovered in the past decade. Nonetheless, T Tauri stars have been under study for more than a half century, and the serendipitous discovery of visual pairs has always been a by-product of their observation (e.g. Joy &
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Nature, 1967
IT is several years since the first discovery of stellar clusters which appeared to be so young that a number of stars in them were still in the process of contracting onto the main sequence1–4. The first theoretical model covering the evolution of stars, on the assumption that their self gravitational energy is the only energy source available, was ...
I. P. WILLIAMS, A. W. CREMIN
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IT is several years since the first discovery of stellar clusters which appeared to be so young that a number of stars in them were still in the process of contracting onto the main sequence1–4. The first theoretical model covering the evolution of stars, on the assumption that their self gravitational energy is the only energy source available, was ...
I. P. WILLIAMS, A. W. CREMIN
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