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Title: National Large Solar Telescope
Authors: Hasan, S. S
Banerjee, D
Ravindra, B
Sankarasubramanian, K
Rangarajan, K. E
Keywords: Adaptive optics;High angular resolution;Magnetic fields;Solar telescope
Issue Date: 25-Aug-2017
Publisher: Current Science Association
Citation: Current Science, Vol. 113, No. 4, pp. 696 - 700
Abstract: The National Large Solar Telescope (NLST) aims primarily to carry out observations of the solar atmosphere with high spatial, spectral and temporalresolution. A comprehensive site characterization programme, that commenced in 2007, has identified an excellent site in the Ladakh region at the Pangong lake, India. With an innovative optical design, NLST is an on-axis Gregorian telescope with a low number of optical elements to reduce the number of reflections and yield a high throughput with low polarization. In addition, it uses high-order adaptive optics to produce close to diffraction limited performance. To control atmospheric and thermal perturbations of the observations, the telescope will function with a fully open dome, to achieve its full potential atop a 25 m tower. The post-focus instruments include broadband and tuneable Fabry–Perot narrow band imaging instruments and a high-resolution spectropolarimter.
Description: Open Access
ISSN: 0011-3891
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Appears in Collections:IIAP Publications

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