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  Peering through SPHERE Images: A Glance at Contrast Limitations

Cantalloube, F., Dohlen, K., Milli, J., Brandner, W., & Vigan, A. (2019). Peering through SPHERE Images: A Glance at Contrast Limitations. The Messenger, 176, 25-31.

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Genre: Journal Article

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 Creators:
Cantalloube, F.1, Author
Dohlen, K.1, Author
Milli, J.1, Author
Brandner, W.1, Author
Vigan, 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: Various structures are visible within Spectro-Polarimetric High-contrast Exoplanet REsearch instrument (SPHERE) images that are not always straightforward to interpret. In this article we present a review of these features and demonstrate their origin using simulations. We also identify which expected or unexpected features are limiting the contrast reached by the instrument and how they may be tackled. This vision paves the way to designing a future upgrade of the SPHERE instrument and the next generation of high-contrast instruments such as those planned for the Extremely Large Telescope (ELT).

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 Dates: 2019
 Publication Status: Published in print
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Title: The Messenger
Source Genre: Journal
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Pages: - Volume / Issue: 176 Sequence Number: - Start / End Page: 25 - 31 Identifier: -