The Unified Astronomy Thesaurus

Search Results

Interstellar medium wind original
star this property broader
Stellar-interstellar interactions original
star this property definition Wind that a star perceives from the ISM.
Schonberg-Chandrasekhar limit original
star this property dcterms created equal to or less than 2018-09-10T16:07:43Zequal to or more than 2018-09-10T16:07:43Z
unstar this property dcterms modified equal to or less than 2018-09-11T18:40:36Zequal to or more than 2018-09-11T18:40:36Z
star this property broader
Gravitational collapse original
star this property 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
unstar this property dcterms modified equal to or less than 2018-09-07T15:36:55Zequal to or more than 2018-09-07T15:36:55Z
star this property broader
Comets original
star this property definition The nebulous envelope around the nucleus of a comet, formed when the comet passes close to the Sun.
Chandrasekhar limit original
unstar this property dcterms modified equal to or less than 2018-09-10T16:13:57Zequal to or more than 2018-09-10T16:13:57Z
star this property broader
Gravitational collapse original
star this property 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
unstar this property dcterms modified equal to or less than 2016-11-01T17:59:43Zequal to or more than 2016-11-01T17:59:43Z
star this property broader
Low surface brightness galaxies original
star this property definition In Morgan's classification, an elongated galaxy of low surface brightness. --Glossary of Astronomy and Astrophysics, J. Hopkins, University of Chicago Press (1976)
Xenobiology original
unstar this property dcterms modified equal to or less than 2018-09-20T14:28:46Zequal to or more than 2018-09-20T14:28:46Z
star this property broader
Astrobiology original
star this property definition "the study of synthesizing and manipulating biological devices and systems" - Wikipedia
Astrobiology original
unstar this property dcterms modified equal to or less than 2018-09-20T15:08:24Zequal to or more than 2018-09-20T15:08:24Z
star this property broader
Interdisciplinary astronomy original
star this property definition "The study of life throughout the Universe, also known as exobiology." - An Etymological Dictionary of Astronomy and Astrophysics, by M. Heydari-Malayeri.
star this property narrower
Xenobiology original
Biomarkers original
DQ Herculis stars original
unstar this property dcterms modified equal to or less than 2018-09-13T20:20:25Zequal to or more than 2018-09-13T20:20:25Z
star this property broader
Novae original
star this property definition "A type of cataclysmic variable binary star system with a white dwarf and a cool main-sequence secondary star." - Wikipedia
Field stars original
star this property dcterms created equal to or less than 2018-09-14T19:11:19Zequal to or more than 2018-09-14T19:11:19Z
unstar this property dcterms modified equal to or less than 2018-09-14T19:14:04Zequal to or more than 2018-09-14T19:14:04Z
star this property broader
Stellar types original
star this property 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
unstar this property dcterms modified equal to or less than 2018-09-14T19:14:18Zequal to or more than 2018-09-14T19:14:18Z
star this property broader
Galaxies original
star this property 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.
Astrometry original
unstar this property dcterms modified equal to or less than 2018-09-14T14:58:01Zequal to or more than 2018-09-14T14:58:01Z
star this property broader
Astronomical techniques original
Exoplanet detection methods original
star this property narrower
Astronomical coordinate systems original
Astronomical location original
Baade-Wesselink method original
Bolometric correction original
Brightness temperature original
Distance measure original
Effective temperature original
Equator position original
Fundamental parameters of stars original
Magnitude original
Parallax original
Phase angle original
Phase defect original
Phase effect original
Phase error original
Photographic astrometry original
Radial velocity original
Radio astrometry original
Relativistic aberration original
Relaxation time original
Sky noise original
Solar constant original
Space astrometry original
Spectral index original
Standard stars original
Stellar distance original
Syzygy original
Two-color diagrams original
Wolf diagram original
Astronomical techniques original
unstar this property dcterms modified equal to or less than 2018-09-20T21:25:54Zequal to or more than 2018-09-20T21:25:54Z
star this property broader
Observational astronomy original
star this property narrower
Astrometry original
Analytical mathematics original
Astronomical object identification original
Astronomical optics original
CCD observation original
Coronographic imaging original
Direct imaging original
Doppler imaging original
Doppler shift original
Drift scan imaging original
Faber-Jackson distance original
Field of view original
High time resolution astrophysics original
Interferometry original
Magnetospheric radio emissions original
Optical observation original
Photometry original
Pointing accuracy original
Polarimetry original
Reverberation mapping original
Scaling relations original
Spectroscopy original
Exoplanet detection methods original
unstar this property dcterms modified equal to or less than 2018-09-20T21:24:54Zequal to or more than 2018-09-20T21:24:54Z
star this property broader
Exoplanet astronomy original
star this property narrower
Astrometry original
Direct imaging original
Gravitational microlensing original
Magnetospheric radio emissions original
Polarimetry original
Radial velocity original
Timing variation methods original
Transit photometry original
Planetary science original
unstar this property dcterms modified equal to or less than 2018-09-20T21:29:03Zequal to or more than 2018-09-20T21:29:03Z
star this property broader
Solar system astronomy original
star this property narrower
Atmospheric science original
Impact phenomena original
Interplanetary magnetic fields original
Interplanetary physics original
Planetary alignment original
Planetary atmospheres original
Planetary magnetosphere original
Planetary structure original
Planetary system formation original
Planetary theory original
Satellite formation original
Solar-planetary interactions original
Surface gravity original
Intrinsic variable stars original
unstar this property dcterms modified equal to or less than 2018-08-30T20:08:02Zequal to or more than 2018-08-30T20:08:02Z
star this property broader
Variable stars original
star this property narrower
Cataclysmic variable stars original
Eruptive variable stars original
Herbig-Haro objects original
Magnetic variable stars original
Pulsating variable stars original
Magnetic stars original
star this property broader
Chemically peculiar stars original
star this property narrower
Am stars original
Bp stars original
Magnetars original
Magnetic variable stars original
Mercury-manganese stars original
Chemically peculiar stars original
star this property broader
Stellar types original
star this property narrower
Magnetic stars original
Am stars original
Ap stars original
Bp stars original
CEMP stars original
Carbon stars original
Chemically peculiar giant stars original
Heavy metal stars original
Helium weak stars original
Helium-poor stars original
Helium-rich stars original
Hydrogen deficient stars original
Lithium stars original
Manganese stars original
Mercury-manganese stars original
Peculiar variable stars original
Shell stars original
Strontium stars original
Technetium stars original
Zirconium stars original
Astrophysical magnetism original
star this property broader
Astrophysical processes original
star this property narrower
Magnetic fields original
Cosmic magnetic fields theory original
Emerging flux tubes original
Magnetic fields original
star this property broader
Astrophysical magnetism original
star this property narrower
Geomagnetic fields original
Magnetic anomalies original
Primordial magnetic fields original
Neutron stars original
unstar this property dcterms modified equal to or less than 2018-09-13T15:23:22Zequal to or more than 2018-09-13T15:23:22Z
star this property broader
Compact objects original
Nuclear astrophysics original
star this property narrower
Magnetars original
Neutron star cores original
Pulsars original
Relativistic stars original
High-velocity clouds original
star this property broader
Interstellar clouds original
star this property narrower
Magellanic Stream original
Magellanic Clouds original
unstar this property dcterms modified equal to or less than 2018-05-10T15:05:41Zequal to or more than 2018-05-10T15:05:41Z
star this property broader
Local Group original
star this property narrower
Large Magellanic Cloud original
Magellanic Stream original
Small Magellanic Cloud original
Local Group original
star this property broader
Galaxy groups original
star this property narrower
Magellanic Clouds original
Andromeda Galaxy original
Milky Way Galaxy original
Triangulum Galaxy original
Cosmology original
unstar this property dcterms modified equal to or less than 2018-08-27T19:16:07Zequal to or more than 2018-08-27T19:16:07Z
star this property narrower
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
Optical phase shifting interferometry original
star this property broader
Optical interferometry original
star this property narrower
Mach-Zehnder interferometers original
Michelson interferometry original