MASS-LUMINOSITY RELATION

in astronomy, law stating that the luminosity of a star is proportional to some power of the mass of the star. More massive stars are in general more luminous. For stars on the main sequence of the Hertzsprung-Russell diagram, it is found empirically that the luminosity varies as the 3.5 power of the mass. This means that if the mass is doubled, the luminosity increases more than tenfold. The law can be derived theoretically and was confirmed by independently measuring the masses of many visual binary stars, all at approximately the same distance. A more exact formulation of the law takes into account the chemical composition of the star. One important use of the mass-luminosity relation is in estimating the mass of a star of known luminosity that is not in a binary system.

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The Columbia Encyclopedia, Sixth Edition Copyright© 2004, Columbia University Press. Licensed from Lernout & Hauspie Speech Products N.V. All rights reserved.

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Questia Books and Articles on: Mass Luminosity Relation
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books on: Mass Luminosity Relation  - 1605 results

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...mass stars did not make a significant contribution to the mass of the halo. Needless to say, this spurious claim to a new...astronomers set the scale of the Universe, it also determines the luminosity of the galaxies within it. The larger the distance scale, the...
...about the commission in relation to his past work and...the altar on which the Mass, the central rite of...house participated in the Mass, their worship enhanced...a symbiotic spiritual relation, they are linked by...altarpiece before which the Mass was said. The static...
...landless poor. MASS FOR THE FIRST SUNDAY...of this child's relation to His heavenly Father...to this intimate relation of love is the holy...covenant-renewal which is the Mass, the more will we...sickness-and-deathrelated. The relation remains a mystery...SHORT FORM OF THE MASS DT. 26, 12-19...
...human being filled the rectangle of the picture with more or less felicity, but no real variation of color animated the general mass of the tone. Neither is this later period like the student days in Paris, so near in point of time, so far away if considered...
...of lectures, the first principle of which was the complex relation between man nature. In November he revisited Goose Pond...the taste of the Greek. We feel that he stands in stricter relations with Nature than other persons, and possesses a portion of...
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journal articles on: Mass Luminosity Relation  - 37 results

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...themselves to the new mass production economies...platforms for imaginary relations to brute social relations...beams. The columns of luminosity which shone out through...consciousness is replaced by mass consciousness. Consciousness...consciousness becomes mass oblivion. The calibre...
...which the prose parts crystallized as commentaries. This proves that we have to do here with life itself and not merely with a mass for the dead, to which the Bardo Thodol was reduced in later times. 16 Lama Govinda interprets the text as referring...
...and log L.sub.CO, the luminosity of carbon monoxide emission...galaxies, and found the relation log L.sub.CO = .74 log...visible wavelengths) luminosity (log L.sub.bol) of a...galaxy, and a linear relation between log L.sub.X...censoring patterns) there is mass that remains unassigned...
...as an intangible, malleable mass that can penetrate space yields...light and dark to the self-luminosity of all things (Leidy and Thurman...from socially-inscribed power relations such as those constructed between...mandala-circle dissolves into a hazy mass. These dissolving, gliding...
...Christianity and Greek Paideia (Cambridge, Mass.: Harvard University, 1985). Evagrius gives...Scholia on Proverbs, he uses the term in relation to a three-phase program of spiritual progress...Patristic Monograph Series (Cambridge, Mass.: Philadelphia Patristic Society, 1979...
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magazine articles on: Mass Luminosity Relation  - 7 results

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...conjure up, for example, the luminosity of flesh with adroitly placed...incomplete little paintings (in relation to the meticulously finished...into a spiraling, light-struck mass of skin and drapery. Angular...broad patches of wash suggest mass, soft flesh, and motion. A...
...framing the moving and unstable body in relation to a constructed, free-standing intensely...through dusk, when the building achieved a luminosity similar to the sky, into darkness when...So I want to try to join the effect of mass movement in big space with a large stage...
...project reflects on the relation between listening and...Jahrhundert (Triggered: War as mass culture in the twenty-first...the return of rock. As mass-media magazines wave...Soubise, but about the relation between the representation...matters out of favor (relations of abstraction to nature...
...Frankenthaler often talks about her perceptions of weather and light across the water, as seen from her Connecticut home, in relation to her paintings, but it is plain that she discovers such affinities in the course of working, rather than setting to work...
...other allusions to art and its relation to nature occur in the rich...that his family runs after mass, refers to the church in a...behind the "mobility" and "luminosity" of the vision of the steeples...suggesting once again the relation of the eye - vision - and the...
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encyclopedia articles on: Mass Luminosity Relation  - 5 results

 
 
MASS-LUMINOSITY RELATION in astronomy, law stating that the luminosity of a star...the chemical composition of the star. One important use of the mass-luminosity relation is in estimating the mass of a star of known luminosity that is...
...white dwarf to about 1,000,000 times that of the sun for the hottest known supergiant star. See magnitude ; mass-luminosity relation ; stellar evolution . ____________________ Copyright 2009 Columbia University Press. Used with the permission...
...faint for its white-hot temperature (see mass-luminosity relation ). Typically, a white dwarf star has the mass of the sun and the radius of the earth...and is both pulsating and has sufficient mass to have a crystalline interior. By measuring...
...can be deduced. Measurements of the masses of some of the visual binary stars have been used to verify the mass-luminosity relation . Although most binary stars have distance between them, the components of W Ursae Majoris binaries are actually...
...the stars around each other and their apparent brightness are observed. By applying Keplers laws and the mass-luminosity relation , the distance of the binary star can be determined. Geocentric parallax is a technique similar to stellar parallax...


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