Browsing Publications of Astronomical Society of India by Author "Chakraborty, P"

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CCD observations of mutual events of Jovian satellites from VBO during 1997

Vasundhara, R; Chakraborty, P; Appakutty, M; Dinakaran, N; Ganeshan, M; Kuppuswamy, K; Moorthy, V; Muniyandi, A; Selvakumar, G; Velu, C; Ramana, K. V (Astronomical Society of India, 2001)

CCD observations of the mutual events of the Galilean satellites of Jupiter from the Vainu Bappu Observatory during 1997 are presented. The derived times of close approach of the geometric centers of the satellites (satellite ...
Exposure time calculator for IFOSC and sky background estimation

Chakraborty, P; Das, H. K; Tandon, S. N (Astronomical Society of India, 2005-12)

Abstract. This paper describes a spectroscopy exposure time calculator for the faint object spectrograph, the \IUCAA Faint Object Spectrograph" (IFOSC). It is intended to provide reasonable estimates of exposure times for ...
A model of the stellar radiation field in the UV

Sujatha, N. V; Chakraborty, P; Murthy, J; Henry, R. C (Astronomical Society of India, 2004-09)

This work is the first step in a systematic effort to understand and predict the different components of the UV (912 A - 3000 A) radiation field over the entire sky. We have developed a model to predict the ISRF in the UV ...

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