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Spectral line


A spectral line is a dark or bright line in an otherwise uniform and continuous spectrum, resulting from emission or absorption of light in a narrow frequency ...

Atomic Absorption and Emission Spectra - Utk


Sources of continuous, emission, and absorption spectra ... direction as the absorbed photon, this gives rise to dark lines (absence of light) in the spectrum.

How Atoms Produce the Spectra - Astronomy Notes


Jun 10, 2010 ... An emission line is produced by an atom in a ``excited'' energy state---the ... The atom produces light of certain wavelengths. ... The more atoms undergoing a particular absorption transition, the darker (or ``stronger'') the absorption line. ... together to produce the rainbow of colors of a continuous...

Absorption Line | COSMOS

astronomy.swin.edu.au/cosmos/a/absorption line

The light that leaves the cloud (right) shows absorption lines in the spectrum at ... seen as dark lines, or lines of reduced intensity, on a continuous spectrum.

Chapter 2, Section 5


Figure 2.12 Emission Spectrum Instead of a continuous spectrum, the light from ... of dark absorption lines superimposed on a bright continuous spectrum. Here ...

Spectra in the Lab


Sep 27, 2005 ... The wavelengths of visible light are quite small: between 400 nm and 650 .... Absorption spectrum: dark lines superimposed on a continuous ...

What Is Spectroscopy - Cool Cosmos


Within this spectra, astronomers can study emission and absorption lines ... The light is spread out into a continuous band with every wavelength having ... If you look more closely at the Sun's spectrum, you will notice the presence of dark lines  ...

emission lines


The light passes through a prism and is split up into its component colors. ... Figure 4.2 Continuous and Emission Spectra When passed through a slit and split up by a ... of dark absorption lines superimposed on a bright continuous spectrum.

Kirchoff's Law and Spectroscopy | Astronomy 801: Planets, Stars ...


In reality, few objects emit exactly a blackbody spectrum. ... of a continuous spectrum creates a DARK LINE or ABSORPTION LINE spectrum. ... We observe absorption lines when the light from a background source passes through a cool gas.

spectrum Facts, information, pictures | Encyclopedia.com articles ...


It consists of a series of dark lines superimposed on a continuous spectrum, ... Absorption spectrum: The spectrum formed when light passes through a cool gas .

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What is Spectroscopy? - University of Arizona


Spectroscopy pertains to the dispersion of an object's light into its component colors ... With discrete spectra, one sees only bright or dark lines at very distinct and ... are called emission spectra, those with dark lines are termed absorption spectra. ... Continuous spectra arise from dense gases or solid objects which radiate ...

spectrum: Continuous and Line Spectra - Infoplease


A dark-line, or absorption, spectrum is the reverse of a bright-line spectrum; it is produced when white light containing all frequencies passes through a gas not ...

Absorption and Emission - NMSU Astronomy


A gas of hydrogen atoms will produce an absorption line spectrum if it is between ... of white light) directly, you would see a continuous spectrum, with no breaks.