File:Eso0308e.jpg

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English: Powerful demonstration of the extraordinary stability of the HARPS spectrograph. It plots the instrumentally induced velocity change, as measured during one night (9 consecutive hours) in the commissioning period. The drift of the instrument is determined by computing the exact position of the Thorium emission lines. As can be seen, the drift is of the order of 1 m/s during 9 hours and is measured with an accuracy of only 20 cm/s.
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Source http://www.eso.org/public/france/images/eso0308e/
Author ESO

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Date/TimeThumbnailDimensionsUserComment
current14:57, 26 May 2015Thumbnail for version as of 14:57, 26 May 2015955 × 700 (84 KB)SenseiAC (talk | contribs)User created page with UploadWizard

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