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Title: Development of digital back-end system for the Gauribidanur Low frequency Solar Spectrograph (GLOSS)
Authors: Srinath Reddy, P
Issue Date: Jul-2017
Publisher: Indian Institute of Astrophysics
Citation: M. Tech. Thesis, University of Calcutta, Calcutta
Abstract: The Indian Institute of Astrophysics operates a low-frequency spectrograph system, viz. GLOSS dedicated for observations of the radio signatures of the solar coronal transients like the flares, coronal mass ejections (CMEs), etc., at the Gauribidanur Radio Observatory located 80 Km North of Bangalore. The existing back-end system is a conventional sweep frequency analyzer. Through different experimental trials it has been established that using a digital back-end offers significant advantages over the conventional spectrum analyzers in terms of the spectral resolution, the temporal resolution, and the dynamic range of the spectrograms. In view of this, it is proposed to design and configure a digital spectrograph back-end for the GLOSS. The spectrograms obtained with the latter are expected to be very useful particularly because (i) radio observations are sensitive indicators of weak energy releases in the solar atmosphere through the associated non-thermal radio emission, (ii) sensitive X-ray spectrometers that can observe similar weak energy releases have been proposed for the ADITYA-1 space mission.
Description: Thesis Supervisor Dr. R Ramesh
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Appears in Collections:Integrated M.Tech-Ph.D (Tech.)

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