The Solar Vector Magnetograph (SVM) is a modern imaging spectropolarimeter installed at Udaipur Solar Observatory (USO). Earlier phases saw the development of the instrument using off-the-shelf components with in-house software development. Subsequently, improvements were done in the opto-mechanical design of the sub-systems and the telescope tracking system. The third phase of the instrument development saw three major improvements, these include: (i) installation of a web-camera based telescope guiding system, developed in-house, (ii) high-cadence spectropolarimetry using Liquid Crystal Variable Retarders and a fast CCD camera and (iii)inclusion of Na D1 line with regular photospheric Fe 630.2 nm line for chromospheric observations.
@article{arxiv.0907.5267,
title = {Phase III of USO Solar Vector Magnetograph},
author = {Sanjay Gosain and P. Venkatakrishnan},
journal= {arXiv preprint arXiv:0907.5267},
year = {2015}
}
Comments
3 pages, 1 table; To appear in the Proceedings of Evershed Meeting, IIA, Bangalore