luminosity function
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Luminosity function — The luminosity function or luminous efficiency function describes the average sensitivity of the human eye to light of different wavelengths. It should not be considered perfectly accurate in every case, but it is a very good representation of… … Wikipedia
luminosity function — 1) Техника: кривая видности (относительной), кривая относительной видности, функция спектральной световой эффективности (относительной) 2) Электроника: функция относительной спектральной световой эффективности 3) Макаров: функция светимости … Универсальный англо-русский словарь
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
luminance [luminosity] function — 1) кривая (относительной) видности 2) функция (относительной) спектральной световой эффективности … Англо-русский словарь технических терминов
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
Luminosity function (astronomy) — In astronomy, the luminosity function gives the number of stars or galaxies with a given luminosity. [ [http://www.daviddarling.info/encyclopedia/L/lumfunc.html luminosity function] , David Darling, entry in The Internet Encyclopedia of Science … 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
кривая относительной видности — Engineering: luminance function, luminosity function … Универсальный русско-английский словарь
кривая видности — luminance [luminosity] function … Англо-русский словарь технических терминов
функция светимости — Makarov: luminosity function … Универсальный русско-английский словарь
