Browsing Archival Collections by Author "Raveendran, A. V"

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A D. C. Amplifier for Photoelectric Photometry

Raveendran, A. V; Mohin, S (Indian Institute of Astrophysics, Bangalore, 1987)

We describe the construction and discuss the performance of a d.c. amplifier which was installed at the 34-cm telescope of Vainu Bappu Observatory in 1987 January and since then extensively used for variable star photometry.
Extinction measurements at Leh

Singh, J; Bhattacharyya, J. C; Raveendran, A. V; Mohin, S; Ashoka, B. N (Astronomical Society of India, 1988-03)

Observations were started at Leh in 1984 with a view to finding the possibility of setting up an astronomical observatory for infrared observations. Results of extinction measurements in UBV bands obtained on 12 nights ...
Observations of X-Per in optical domain

Sharma, D. P; Nagaraja, B. V; Bhattacharyya, J. C; Mohin, S; Raveendran, A. V (Kluwer Academic Publishers, 1983-09)

We have monitored the X-ray source X-Per (4U 0352+30) on 31 August, 1979 through aU filter for about 1.5 hr using 102-cm telescope of Kavalur observatory. During this period intensity of X-Per fluctuated for some time, on ...
Photometry of Zeta Aurigae during the 1977 and 1979-80 Eclipses

Mohin, S; Raveendran, A. V; Mekkaden, M. V (Indian Institute of Astrophysics, Bangalore, 1980)

UBV photometry of Zeta Aurigae during the 1977 and 1979-80 eclipses is presented. From an analysis of the available photometry, it is concluded that the long term intrinsic variation in the brightness of the late-type super ...

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