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Archiu:The HARPS polarimeter.jpg

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Summary

Description
English: The very successful HARPS spectrograph, attached to ESO’s 3.6-metre telescope at La Silla, Chile, has been enhanced with a new capability: the most precise polarimeter in the world.  Polarisation describes the preferential plane in which light vibrates upon propagation and is measured with a polarimeter. The first observations with the HARPS polarimeter show that this new instrument already exceeds expectations. It can detect the polarisation of light, at a level as small as 1 part in 100 000, without any disturbances from the Earth’s atmosphere and the instrument itself. Together with the unprecedented stability of the spectrograph, this renders the HARPS polarimeter the most precise of its kind. Furthermore, it is the only polarimeter of its kind in the southern hemisphere.
Date
Source http://cdn.eso.org/images/large/ann1005a.jpg (image) / http://www.eso.org/public/france/images/ann1005a/ (description)
Author ESO/F. Snik

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depicts English

copyright status English

copyrighted English

inception English

15 February 2010

data size English

1,294,897 byte

height English

1,932 pixel

width English

2,576 pixel

media type English

image/jpeg

checksum English

be8143b79daf5cf8b7075e9140ac13ecb65883f6

determination method or standard English: SHA-1

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