Results 271 to 280 of about 145,288 (313)
Some of the next articles are maybe not open access.
Journal of Astrophysics and Astronomy, 1984
Constraints are derived on the acceleration of charges in shocks to highly relativistic energies. When applied to the extended extragalactic radio sources and to the cosmic rays, they cast doubt on the mechanism of ‘in-situ acceleration’, both for energy, entropy and statistical mechanics reasons.
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Constraints are derived on the acceleration of charges in shocks to highly relativistic energies. When applied to the extended extragalactic radio sources and to the cosmic rays, they cast doubt on the mechanism of ‘in-situ acceleration’, both for energy, entropy and statistical mechanics reasons.
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2004
A review on strong masers and their assocn. with star formation, recent VLBI measurements of the structure and dynamics of methanol masers, the masers in the envelopes of evolved stars, and extragalactic masers. [on SciFinder (R)]
Booth, R. S., Diamond, P. J.
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A review on strong masers and their assocn. with star formation, recent VLBI measurements of the structure and dynamics of methanol masers, the masers in the envelopes of evolved stars, and extragalactic masers. [on SciFinder (R)]
Booth, R. S., Diamond, P. J.
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Science, 1991
Astrophysical jets are linear structures associated with stars and galaxies which span about seven orders of magnitude in size; the largest jets emanating from galaxies are about 100 times the size of our galaxy and are the largest single objects in the universe.
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Astrophysical jets are linear structures associated with stars and galaxies which span about seven orders of magnitude in size; the largest jets emanating from galaxies are about 100 times the size of our galaxy and are the largest single objects in the universe.
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2009
The previous chapter was devoted to the main observational evidence on the basis of our comprehension of the Universe and to their main theoretical implications. Some theoretical and phenomenological topics of particular relevance for current cosmology with clear observational counterparts are rediscussed here, with a better attention to the ...
Balbi, A. +13 more
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The previous chapter was devoted to the main observational evidence on the basis of our comprehension of the Universe and to their main theoretical implications. Some theoretical and phenomenological topics of particular relevance for current cosmology with clear observational counterparts are rediscussed here, with a better attention to the ...
Balbi, A. +13 more
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Communications of the ACM, 1985
As computers become more powerful and sophisticated, computational astrophysicists will be able to find out more about stellar evolution and other astronomical phenomena.
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As computers become more powerful and sophisticated, computational astrophysicists will be able to find out more about stellar evolution and other astronomical phenomena.
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Theoretical Nuclear Physics in Italy, 2003
In this report I will try to illustrate some of the main research themes and hot topics in nuclear astrophysics. The particular aim of the present report is to briefly illustrate the research activities, in the field of nuclear astrophysics, performed by the Italian nuclear physicist community within the "Programma di Ricerca di Interesse Nazionale su ...
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In this report I will try to illustrate some of the main research themes and hot topics in nuclear astrophysics. The particular aim of the present report is to briefly illustrate the research activities, in the field of nuclear astrophysics, performed by the Italian nuclear physicist community within the "Programma di Ricerca di Interesse Nazionale su ...
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Uspekhi Fizicheskih Nauk, 1964
CONTENTS 1. Introduction 763 2. Equilibrium and Stability of a Star as a Whole 764 3. Equation of State 767 4. Masses of Stars in the Final Stages of Evolution 769 5. Schwarzschild Gravitation Field 770 6. Gravitational Field Inside a Star 771 7. Paths of Light Rays Inside and Outside a Static Star 772 8. Structure of Superdense Stars 773 9.
Ya B Zel'dovich, Igor D Novikov
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CONTENTS 1. Introduction 763 2. Equilibrium and Stability of a Star as a Whole 764 3. Equation of State 767 4. Masses of Stars in the Final Stages of Evolution 769 5. Schwarzschild Gravitation Field 770 6. Gravitational Field Inside a Star 771 7. Paths of Light Rays Inside and Outside a Static Star 772 8. Structure of Superdense Stars 773 9.
Ya B Zel'dovich, Igor D Novikov
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2008 22nd International Symposium on High Performance Computing Systems and Applications, 2008
Summary form only given. Large-scale computation has achieved a pivotal role in many areas of astrophysics and cosmology. Not only does increasing computational power allow us to better model the huge range of spatial and temporal scales in the universe, but simulations provide in many cases the only laboratory in which we may actively experiment on ...
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Summary form only given. Large-scale computation has achieved a pivotal role in many areas of astrophysics and cosmology. Not only does increasing computational power allow us to better model the huge range of spatial and temporal scales in the universe, but simulations provide in many cases the only laboratory in which we may actively experiment on ...
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The astrophysics of crowded places
Philosophical Transactions of the Royal Society of London. Series A: Mathematical, Physical and Engineering Sciences, 2002Today the Sun is in a relatively uncrowded place. The distance between it and the nearest other star is relatively large (about 200,000 times the Earth-Sun distance!). This is beneficial to life on Earth; a close encounter with another star is extremely unlikely. Such encounters would either remove the Earth from its orbit around the Sun or leave it on
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2004
My subject is a topic in astrophysical fluid dynamics; specifically, the behavior of the supersonic jets that are observed to squirt out of the nuclei of active galaxies, compact stellar objects, and proto-stars. Some years ago, I had the good fortune to discuss this topic with Hans Liepmann, who quickly recognized that astrophysical jets pose some ...
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My subject is a topic in astrophysical fluid dynamics; specifically, the behavior of the supersonic jets that are observed to squirt out of the nuclei of active galaxies, compact stellar objects, and proto-stars. Some years ago, I had the good fortune to discuss this topic with Hans Liepmann, who quickly recognized that astrophysical jets pose some ...
openaire +2 more sources