Developmental Aspects of a Multi-Slit Spectro-Polarimeter

Abstract

We report the development aspects of an integral field unit, multi-slit spectro-polarimeter (MSSP) optimized for optical to near infrared regime, which can be used to derive simultaneous spectral and vector magnetic field information at high spatial, spectral and temporal resolution of any extended astronomical object like the Sun, with limited spectral coverage of few Angstrom. The instrument will be first developed and tested in laboratory which in a later stage will be used as a focal plane instrument for the Multi Application Solar Telescope (MAST). The major technological challenges involved in setting up and calibration of the instrument are discussed. The scientific motivation for the system is highlighted, with special emphasis on science limitations imposed by similar existing instruments elsewhere.