Polarimetric interferometry: concept and applications

Olivier Chesneau; Karine Perraut-Rousselet; Farrokh Vakili; Denis Mourard; Claude Cazale

doi:10.1117/12.390250

5 July 2000 Polarimetric interferometry: concept and applications

Olivier Chesneau, Karine Perraut-Rousselet, Farrokh Vakili, Denis Mourard, Claude Cazale

Proceedings Volume 4006, Interferometry in Optical Astronomy; (2000) https://doi.org/10.1117/12.390250
Event: Astronomical Telescopes and Instrumentation, 2000, Munich, Germany

Abstract

Adding a polarimetric device at the combined focus of a stellar interferometer opens new prospects for studying stellar polarization phenomena. Thanks to spatial resolution of long baseline interferometer local polarized structures should become observable unless otherwise undetectable by classical polarimetric techniques. In this paper we present the principles, the observables and the instrumental requirements of polarimetric interferometry. After a short description of earlier attempts to detect polarization effects with optical long baseline interferometry we review the potential applications of this technique once implemented on future optical arrays. We examine the case of scattering phenomena in the extended atmospheres of hot stars (O, B, A) or magnetism of chemically peculiar stars as targets for polarimetric interferometry or its extension SPIN (Spectro-Polarimetric INterferometry). Finally, based on the design of a polarimetric device of GI2T-REGAIN, we currently initiate an observing program which aims at scientific targets such as bright magnetic Ap and Be stars.

Citation Download Citation

Olivier Chesneau, Karine Perraut-Rousselet, Farrokh Vakili, Denis Mourard, and Claude Cazale "Polarimetric interferometry: concept and applications", Proc. SPIE 4006, Interferometry in Optical Astronomy, (5 July 2000); https://doi.org/10.1117/12.390250

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available