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emission lines |
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emission lines [i′mish·ən ‚līnz] (spectroscopy) Spectral lines resulting from emission of electromagnetic radiation by atoms, ions, or molecules during changes from excited states to states of lower energy. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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In practice, specific calibration curves of peak widths as a function of wavelength must be obtained for emission lines belonging to the K, L, or M series since these lines of similar energy do not only exhibit shape changes but also have different peak widths [4]. In addition to pulsar observing, COBRA will be used for other online observations, for example methanol emission lines from astronomical objects. The wavelength calibration for a scanning instrument is the relation between the motor steps that determine the grating angle and the monochromator wavelength, and is determined typically from the emission lines of a Hg lamp. |
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