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  The GRAVITY fringe tracker: correlation between optical path residuals and atmospheric parameters

Lacour, S., Dembet, R., Abuter, R., Fedou, P., Perrin, G., Eisenhauer, F., et al. (2018). The GRAVITY fringe tracker: correlation between optical path residuals and atmospheric parameters.

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Item Permalink: https://hdl.handle.net/21.11116/0000-0005-CCA6-A Version Permalink: https://hdl.handle.net/21.11116/0000-0005-CCA7-9
Genre: Proceedings

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https://ui.adsabs.harvard.edu/abs/2018SPIE10701E..07L (Any fulltext)
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 Creators:
Lacour, S.1, Author
Dembet, R.1, Author
Abuter, R.1, Author
Fedou, P.1, Author
Perrin, G.1, Author
Eisenhauer, F.1, Author
Perraut, K.1, Author
Straubmeier, C.1, Author
Brandner, W.1, Author
Amorim, A.1, Author
Affiliations:
1Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners, ou_2421692              

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Free keywords: Astrophysics - Instrumentation and Methods for Astrophysics
 Abstract: After the first year of observations with the GRAVITY fringe tracker, we compute correlations between the optical path residuals and atmospheric and astronomical parameters. The median residuals of the optical path residuals are 180nm on the ATs and 270nm on the UTs. The residuals are uncorrelated with the target magnitudes for Kmag below 5.5 on ATs (9 on UTs). The correlation with the coherence time is however extremely clear, with a drop-off in fringe tracking performance below 3 ms.

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 Dates: 2018
 Publication Status: Issued
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: ISBN: 9781510619555
 Degree: -

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Title: Optical and Infrared Interferometry and Imaging VI
Place of Event: -
Start-/End Date: 2018

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