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Why are interstellar absorption lines so much thinner than stellar absorption lines?
Wiki User
∙ 13y ago
Most interstellar gas is at a lower temperature than that of stellar atmospheres and the density of interstellar gas is less than that of stellar atmospheres.
Wiki User
∙ 13y ago
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Why do stellar spectra have absorption lines?
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What are dark lines in a stellar spectrum called?
The dark lines are absorption spectrum, the energy absorbed by Atoms in the atmosphere of the star. ================================ Fraunhofer's spectral lines.
Dark lines in an absorption spectrum are called?
Absorption lines
Which direction will absorption lines move if an object remains the same distance?
The lines will not move.
What do forbidden lines reveal about interstellar space?
The density or pressure of this gas is much lower than can be produced in a laboratory.
Why do stellar spectra have absorption lines?
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Which stellar spectral type has the largest number of prominent absorption lines in an optical spectrum?
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How are absorption and emission lines produced in a stellar spectrum What information might absorption lines in the spectrum of a star reveal about a cloud of cool gas lying between us and the star?
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What are dark lines in a stellar spectrum called?
The dark lines are absorption spectrum, the energy absorbed by Atoms in the atmosphere of the star. ================================ Fraunhofer's spectral lines.
How did astronomers in the 19th century gather information about the chemical composition of stellar objects?
There is one way for gathering information about chemical composition of stellar objects - spectral analysis! Astronomical spectroscopy began with Isaac Newton's initial observations of the light of the Sun, dispersed by a prism. He saw a rainbow of colour, and may have seen absorption lines. The absorption lines in stellar spectra can be used to determine the chemical composition of the star.
Dark lines in an absorption spectrum are called?
Absorption lines
What are the Dark lines that appear in a spectrum of light from a star called?
absorption lines! :)
Are there as many absorption lines in the solar spectrum as there are elements present in the Sun?
There are a lot more. Each element has several possible absorption lines. In fact the element iron has several hundred lines.
Which direction will absorption lines move if an object remains the same distance?
The lines will not move.
What is imaginary lines called?
On the earth (and planetary/stellar bodies) they are called latitudes and longitudes.
What do forbidden lines reveal about interstellar space?
The density or pressure of this gas is much lower than can be produced in a laboratory.
Are emission lines produced when an atom absorbs a photon of a specific energy?
No. Those would be absorption lines.
