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Abstract

This paper provides a brief description of polarimetry as a potential technique to acquire
information about characteristiscs of astronomical objects otherwise unobtainable solely from
photometric and spetroscopic observations. Polarization in astronomical contexts, its formalism in the
optical domain, polarization mechanism through scattering, and polarimetric optics are described in
this paper. Polarimetry implementation in astronomical observation is also discussed by taking
polarimetric imaging of the young star LkCa 15 with the SPHERE ZIMPOL instrument on the
European Southern Observatory’s VLT (Very Large Telescope) as an example.

Keywords

polarimetry polarization scattering exoplanet protoplanetary disk

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