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Dark lines in an absorption spectrum are called?
Dark lines in an absorption spectrum are called absorption lines. These lines correspond to wavelengths of light that have been absorbed by specific elements or molecules in the sample being analyzed. They appear as dips or gaps in the spectrum where less light is detected.
What are the Dark lines that appear in a spectrum of light from a star called?
The dark lines that appear in a spectrum of light from a star are called absorption lines. These lines are caused by the absorption of specific wavelengths of light by elements in the outer atmosphere of the star. Absorption lines help astronomers identify the chemical composition of stars and other celestial objects.
What are variables used to classify stars?
The first variable that is used to classify stars is its ionization state which can measure the photosphere's temperature and density. This information is gathered by splitting the light from a star with a prism and observing the resulting spectrum that includes absorption lines. Luminosity is another variable used; it is based on the width of absorption lines.
Why are interstellar absorption lines so much thinner than stellar absorption lines?
Interstellar absorption lines are thinner than stellar absorption lines because they are produced by relatively sparse gas and dust in the vast interstellar medium, while stellar absorption lines are produced by more dense and complex environments within a star's atmosphere. The broader stellar absorption lines can be influenced by a variety of factors such as temperature, pressure, and magnetic fields, leading to their wider appearance compared to interstellar 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.
What is the width of the white lines in football?
The lines must be the same width as the diameter of the goal posts and crossbar. They must not exceed 12 cm.
Why are atomic absorption lines very narrow?
Atomic absorption lines are very narrow because they result from the absorption of light by individual atoms at specific energy levels. This absorption occurs at precise wavelengths corresponding to the energy differences between the atom's electron orbits. The narrowness of the lines is due to the limited number of possible energy transitions within an atom, resulting in distinct and well-defined absorption peaks.
Why do stellar spectra have absorption lines?
Need a different, better answer.
How can you tell the absorption lines in the photographic spectrum?
Absorption lines in a photographic spectrum appear as dark lines where specific wavelengths of light are absorbed by elements in a celestial object. These lines indicate the presence of elements in the object's atmosphere and can be identified by comparing their positions with known spectral lines of elements on Earth.
What part of the star is responsible for the dark lines in its spectrum?
The dark lines in a star's spectrum are caused by absorption of specific wavelengths of light by the elements in the star's outer atmosphere. This absorption occurs when the elements in the atmosphere absorb photons of specific energies, leading to the creation of dark absorption lines in the spectrum.
Are emission lines produced when an atom absorbs a photon of a specific energy?
No. Those would be absorption lines.
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?
Absorption lines are produced when elements in the outer layers of a star absorb specific wavelengths of light, leading to dark lines in the spectrum. These lines indicate the presence of certain chemical elements in the star's atmosphere. Absorption lines from a cool gas cloud between a star and Earth can reveal the composition, density, and temperature of the cloud, providing valuable information about the interstellar medium.
