Polarimetry - Scope on the 3.6-m Devasthal Optical Telescope
Umesh Chandra Joshi,
Physical Research Laboratory, Ahmedababd, INDIA, joshi@prl.res.in
Shashikiran Ganesh,
Physical Research Laboratory, Ahmedababd, INDIA
Kiran Singh Baliyan,
Physical Research Laboratory, Ahmedababd, INDIA
Abstract
Polarization measurements are very helpful to understand the nature of some of the stellar and extra-galactic sources. Light from astronomical objects is in general polarized to some degree and its measurement gives additional information related to the magnetic field, the distribution of scattering material, the non-thermal nature of light, etc. Since the degree of polarization in the majority of astronomical sources is 1-5%, and polarimetry requires additional optics with respect to classical imaging, these measurements require much more photons to achieve a good signal-to-noise ratio for which the 3.6-m Devasthal Optical Telescope (DOT) facility is suitable.
Keywords : astronomy, astrophysics, instrumentation, observatories, polarimetry
Pour citer cet article
Umesh Chandra Joshi, Shashikiran Ganesh & Kiran Singh Baliyan, «Polarimetry - Scope on the 3.6-m Devasthal Optical Telescope», Bulletin de la Société Royale des Sciences de Liège [En ligne], Volume 87 - Année 2018, Actes de colloques, First Belgo-Indian Network for Astronomy & Astrophysics (BINA) workshop - November 2016 - Nainital, India, 117 - 120 URL : https://popups.uliege.be/0037-9565/index.php?id=7560.