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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 ...

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 ...

Three types of spectrums (spectra) | thecuriousastronomer


Jul 9, 2013 ... The three types of spectra are called “a continuous spectrum” (or continuum emission), “an emission line spectrum” and “an absorption line spectrum”. .... Light from the Sun looks like a continuum spectrum, but has dark lines ...

Infrared Spectroscopy in Astronomy


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  ...

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 ...

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...

Zoom Astronomy Glossary: Spectroscopy - Enchanted Learning


When the substance emits light, a bright-line spectrum or an emission ... or an absorption spectrum (these look like a series of dark lines on a rainbow). ... in the early 1800s that the continuous spectrum was marred by over 700 dark lines ( now ...

Production of Light - Astronomy Notes


Aug 20, 2007 ... When light is passed through a prism or a diffraction grating to ... and absorption lines (dark lines in an otherwise continuous spectrum) as ...

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 ...

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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.

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 ...

Spectral Types of Stars - Eclipsing Binary Stars - NAAP


... absorption and emission. Emission lines (top) and absorption lines (bottom) of Hydrogen. ... If light from a continuous spectrum passes through a cool, transparent gas we observe dark lines appear in the spectrum. The lines occur where ...