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Diffraction-limited polarimetric imaging of protoplanetary disks and mass-loss shells with VAMPIRES

Norris, Barnaby R. M. and Tuthill, Peter and Jovanovic, Nemanja and Lozi, Julien and Guyon, Olivier and Cvetojevic, Nick and Martinache, Frantz (2020) Diffraction-limited polarimetric imaging of protoplanetary disks and mass-loss shells with VAMPIRES. In: Advances in Optical Astronomical Instrumentation 2019. Proceedings of SPIE. No.11203. Society of Photo-Optical Instrumentation Engineers (SPIE) , Bellingham, WA, Art. No. 112030S. ISBN 9781510631465. https://resolver.caltech.edu/CaltechAUTHORS:20200109-104857484

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Abstract

Both the birth and death of a stellar system are areas of key scientific importance. Whether it's understanding the process of planetary formation in a star's early years, or uncovering the cause of the enormous mass-loss that takes place during a star's dying moments, a key to scientific understanding lies in the inner few AU of the circumstellar environment. Corresponding to scales of 10s of milli-arcseconds, these observations pose a huge technical challenge due to the high angular-resolutions and contrasts required. A major stumbling block is the problem of the Earth's own atmospheric turbulence. The other difficulty is that precise calibration is required to combat the extremely high contrast ratios and high resolutions faced. By taking advantage of the fact that starlight scattered by dust in the circumstellar region is polarized, differential polarimetry can help achieve this calibration. Spectral features can also be utilized.


Item Type:Book Section
Related URLs:
URLURL TypeDescription
https://doi.org/10.1117/12.2539998DOIArticle
ORCID:
AuthorORCID
Norris, Barnaby R. M.0000-0002-8352-7515
Lozi, Julien0000-0002-3047-1845
Guyon, Olivier0000-0002-1097-9908
Martinache, Frantz0000-0003-1180-4138
Additional Information:© 2020 Society of Photo-Optical Instrumentation Engineers (SPIE).
Subject Keywords:Interferometry, polarimetry, exoplanets, aperture masking, Subaru telescope, protoplanetary disks
Series Name:Proceedings of SPIE
Issue or Number:11203
Record Number:CaltechAUTHORS:20200109-104857484
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20200109-104857484
Official Citation:Barnaby R. M. Norris, Peter Tuthill, Nemanja Jovanovic, Julien Lozi, Olivier Guyon, Nick Cvetojevic, and Frantz Martinache "Diffraction-limited polarimetric imaging of protoplanetary disks and mass-loss shells with VAMPIRES", Proc. SPIE 11203, Advances in Optical Astronomical Instrumentation 2019, 112030S (3 January 2020); https://doi.org/10.1117/12.2539998
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:100594
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:09 Jan 2020 19:35
Last Modified:09 Mar 2020 13:19

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