The Unified Astronomy Thesaurus

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Schonberg-Chandrasekhar limit original
dcterms created equal to or less than 2018-09-10T16:07:43Zequal to or more than 2018-09-10T16:07:43Z
dcterms modified equal to or less than 2018-09-11T18:40:36Zequal to or more than 2018-09-11T18:40:36Z
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Gravitational collapse original
definition This represents the maximum fraction of a star's mass that can be contained within an isothermal core while still supporting the rest of the star in hydrostatic equilibrium. Once the mass of an isothermal helium core exceeds this limit, the corse collapses and the star evolve rapidly. The limit varies depending on the star.
Comas original
dcterms modified equal to or less than 2018-09-07T15:36:55Zequal to or more than 2018-09-07T15:36:55Z
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Comets original
definition The nebulous envelope around the nucleus of a comet, formed when the comet passes close to the Sun.
Chandrasekhar limit original
dcterms modified equal to or less than 2018-09-10T16:13:57Zequal to or more than 2018-09-10T16:13:57Z
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Gravitational collapse original
definition The maximum mass limit for a white dwarf star, ~1.44 solar masses. White dwarf stars in a binary system accreting mass from a companion will collapse in a Type II supernova once this limit is exceeded.
L galaxies original
dcterms modified equal to or less than 2016-11-01T17:59:43Zequal to or more than 2016-11-01T17:59:43Z
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Low surface brightness galaxies original
definition In Morgan's classification, an elongated galaxy of low surface brightness. --Glossary of Astronomy and Astrophysics, J. Hopkins, University of Chicago Press (1976)
DQ Herculis stars original
dcterms modified equal to or less than 2018-09-13T20:20:25Zequal to or more than 2018-09-13T20:20:25Z
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Novae original
definition "A type of cataclysmic variable binary star system with a white dwarf and a cool main-sequence secondary star." - Wikipedia
Field stars original
dcterms created equal to or less than 2018-09-14T19:11:19Zequal to or more than 2018-09-14T19:11:19Z
dcterms modified equal to or less than 2018-09-14T19:14:04Zequal to or more than 2018-09-14T19:14:04Z
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Stellar types original
definition "A star that does not belong to a stellar cluster, but happens to be adjacent to it." - An Etymological Dictionary of Astronomy and Astrophysics, by M. Heydari-Malayeri.
Field galaxies original
dcterms modified remove maximum value filterequal to or more than 2018-09-14T19:14:18Z
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Galaxies original
definition "A galaxy that lies in the direction of a cluster of galaxies, but is not a member of the cluster. Field galaxies are rare, less than about 5% of all galaxies." - An Etymological Dictionary of Astronomy and Astrophysics, by M. Heydari-Malayeri.
Observational astronomy original
dcterms modified equal to or less than 2018-09-14T15:32:32Zequal to or more than 2018-09-14T15:32:32Z
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Astronomical instrumentation original
Astronomical methods original
Astronomical research original
Astronomical techniques original
Solar physics original
dcterms modified equal to or less than 2018-08-27T21:50:31Zequal to or more than 2018-08-27T21:50:31Z
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CNO anomaly original
Helioseismology original
Solar abundances original
Solar activity original
Solar atmosphere original
Solar electromagnetic emission original
Solar evolution original
Solar faculae original
Solar flares original
Solar granulation original
Solar interior original
Solar magnetic fields original
Solar mass original
Solar motion original
Solar oscillations original
Solar particle emission original
Solar radiation original
Solar radius original
Solar rotation original
Solar spectral irradiance original
Solar surface original
Solar wind original
Sunspots original
Cosmology original
dcterms modified equal to or less than 2018-08-27T19:16:07Zequal to or more than 2018-08-27T19:16:07Z
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Anthropic principle original
Astronomical radiation sources original
Astrophysical dust processes original
Bianchi cosmology original
Big Bang theory original
Brane cosmology original
Cosmic inflation original
Cosmochemistry original
Cosmogony original
Cosmological evolution original
Cosmological models original
Cosmological parameters original
Cosmological phase transitions original
Hierarchical cosmology original
Large-scale structure of the universe original
Non-Gaussianity original
Observational cosmology original
Origin of the universe original
Plasma astrophysics original
Quantum cosmology original
Radiative transfer original
Redshifted original
Relativistic cosmology original