Spectrograph laser comb, artwork

Spectrograph laser comb, artwork

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Restrictions: This image may not be used by or to promote the arms, nuclear power or tobacco industries or any religious organisation, or in any discriminatory way, or to imply the endorsement by ESO of any product, service or activity

Caption: Spectrograph laser comb. Artwork of equipment needed for increasingly precise future spectroscopic analysis. This equipment is known as the laser comb, and will be used as a 'ruler' to calibrate spectrographs that will be used to search for Earth-like planets or measure the expansion of the Universe. Light from the Sun (upper left) is coupled to an optical fibre (wavy line) that guides it to a spectrograph (prism, lower right) that splits it into a spectrum (bottom) with spectral lines (dark peaks). The bright (white) spectral lines of the pulsed laser (also known as an astro-comb) help to filter the light and are used to calibrate the equipment.Restrictions:.

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Keywords: 21st century, absorption lines, advanced, apparatus, artwork, astro comb, astro-comb, astronomical, astronomy, astrophysical, astrophysics, calibrating, calibration, colours, device, educational, emission lines, equipment, exoplanets, future, futuristic, illustration, laser comb, laser-comb, measuring, new, optical fibre, planet hunting, prism, pulsed laser, space, spectral lines, spectrograph, spectrum, split light, star, sun, sun-like, technique, technological, technology, universe

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