Studies of classical novae and related objects

Abstract

This thesis is based on studies of two classical novae - V1425 Aquilae (J H K photometry and optical spectroscopy) and V723 Cassiopeiae (J H K photometry) and a sample of symbiotic stars (J H K photometry and Circular Variable Filter spectroscopy). The infrared data have been obtained from Mt. Abu IR Observatory of Physical Research Laboratory, Ahmedabad, and the optical spectra from Vainu Bappu Observatory of Indian Insitute of Astrophysics, Bangalore.