- mass-luminosity
- масса-светимость - mass-luminosity law
Большой англо-русский и русско-английский словарь. 2001.
mass-luminosity
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Mass–luminosity relation — In astrophysics, the mass–luminosity relation is an equation giving the relationship between a star s mass and its luminosity. The relationship is represented by the equation: where L⊙ and M⊙ are the luminosity and mass of the sun and… … Wikipedia
mass-luminosity law — ˈ ̷ ̷| ̷ ̷ ̷ ̷| ̷ ̷ ̷ ̷ ̷ ̷ noun : a statement in astronomy: there is a close correlation between the luminosities or absolute magnitudes of stars and their masses so that the more massive stars are in general the more luminous … Useful english dictionary
Luminosity — has different meanings in several different fields of science.In photometry and color imagingIn photometry, luminosity is sometimes incorrectly used to refer to luminance, which is the density of luminous intensity in a given direction. The SI… … Wikipedia
Mass-to-light ratio — In astrophysics and physical cosmology the mass to light ratio, normally designated with the symbol Υ[1] is the quotient between the total mass of a spatial volume (typically on the scales of a galaxy or a cluster) and its luminosity. These… … Wikipedia
Mass to light ratio — In physical cosmology the mass to light ratio is the quotient between the total mass of a galaxy or a cluster and its luminosity. These ratios are often reported using the value calculated for the sun as a baseline ratio. The mass to light ratios … Wikipedia
Initial mass function — The initial mass function (IMF) is an empirical function that describes the mass distribution (the histogram of stellar masses) of a population of stars in terms of their theoretical initial mass (the mass they were formed with). The properties… … Wikipedia
Eddington luminosity — The Eddington luminosity (also referred to as the Eddington limit) in a star is defined as the point where the gravitational force inwards equals the continuum radiation force outwards, assuming hydrostatic equilibrium and spherical symmetry.… … Wikipedia
Planetary nebula luminosity function — (PNLF) is a secondary distance indicator used in astronomy. It makes use of the [O III| [O III] λ5007 forbidden line found in all planetary nebula which are members of the old stellar populations (Population… … Wikipedia
Solar mass — Weight of the Sun redirects here. For the song, see Tao of the Dead. Size and mass of very large stars: Most massive example, the blue Pistol Star (150 ). Others are Rho Cassiopeiae (40 … Wikipedia
Intermediate-mass black hole — An Intermediate mass black hole (IMBH) is a black hole whose mass is significantly more than stellar black holes (a few tens of the mass of the Sun) yet far less than supermassive black holes (a few millions of the mass of the Sun). There is less … Wikipedia
Main sequence — A Hertzsprung Russell diagram plots the actual brightness (or absolute magnitude) of a star against its color index (represented as B V). The main sequence is visible as a prominent diagonal band that runs from the upper left to the lower right.… … Wikipedia
