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A black hole is so named because it emits no visible light because it is so cold, its energy being held in an intense gravity field. no light can escape from it on account of its powerful gravitational field. the gravitational field is so high that the wavelength of its emitted light is shifted into the infrared and radio regions of the spectrum. its spectrum has the same shape as that of a laboratory blackbody at a temperature of about 1000 K.

A black hole is so named because it emits no visible light because it is so cold, its energy being held in an intense gravity field. no light can escape from it on account of its powerful gravitational field. the gravitational field is so high that the wavelength of its emitted light is shifted into the infrared and radio regions of the spectrum. its spectrum has the same shape as that of a laboratory blackbody at a temperature of about 1000 K.

Applications and Investigations in Earth Science (9th Edition)
Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Chapter1: The Study Of Minerals
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A black hole is so named because it emits no visible light because it is so cold, its energy being held in an intense gravity field. no light can escape from it on account of its powerful gravitational field. the gravitational field is so high that the wavelength of its emitted light is shifted into the infrared and radio regions of the spectrum. its spectrum has the same shape as that of a laboratory blackbody at a temperature of about 1000 K.
Transcribed Image Text:A black hole is so named because it emits no visible light because it is so cold, its energy being held in an intense gravity field. no light can escape from it on account of its powerful gravitational field. the gravitational field is so high that the wavelength of its emitted light is shifted into the infrared and radio regions of the spectrum. its spectrum has the same shape as that of a laboratory blackbody at a temperature of about 1000 K.
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