Results 191 to 200 of about 1,398,943 (214)
Early age-related changes to articular cartilage T<sub>1ρ</sub> in hips with Legg-Calvé-Perthes disease deformity. [PDF]
Osteoarthr Cartil OpenJohnson LG +6 more
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New alternative proposal in physical education: Touchtennis as a racket sport in schools. [PDF]
Front Sports Act LivingMorales-Campo PT +4 more
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SSAM: a span spatial attention model for recognizing named entities. [PDF]
Sci RepWang K, Wen K, Chen Y, Qin Y.
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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.
Alfred Weigert, Rudolf Kippenhahn
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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.
Alfred Weigert, Rudolf Kippenhahn
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2018
This chapter introduces the basics of radiative transfer, which is a primary energy-transport mechanism inside stars, and also contributes to keeping stars ‘inflated’ and balanced against gravity. The roles of opacity and cross-sections in scattering photons are described.
Paul A. Taylor, Prasenjit Saha
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This chapter introduces the basics of radiative transfer, which is a primary energy-transport mechanism inside stars, and also contributes to keeping stars ‘inflated’ and balanced against gravity. The roles of opacity and cross-sections in scattering photons are described.
Paul A. Taylor, Prasenjit Saha
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Pre-Main-Sequence Outflows [PDF]
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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Evolution on the Main Sequence
2012Stars spend most of their lifes in the phase of central hydrogen burning. In observations of groups or populations of stars the corresponding location in the Hertzsprung-Russell diagram is therefore the most dominant feature and consequently has been termed Main Sequence.
Rudolf Kippenhahn +2 more
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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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2014
We have so far covered topics that describe how a star forms, how the mass of stars can be determined by observing binary-star systems, and how long it takes to become a star. Now we shall discuss how long a star will remain on the main sequence and then look at what happens due to changes in its internal structure.
openaire +2 more sources
We have so far covered topics that describe how a star forms, how the mass of stars can be determined by observing binary-star systems, and how long it takes to become a star. Now we shall discuss how long a star will remain on the main sequence and then look at what happens due to changes in its internal structure.
openaire +2 more sources