Abstract
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 time scales of few minutes but recovered in the end. It was again monitored from 27 December, 1979 to January 1980 through a standardU, B, V photometer attached to a 34-cm telescope. In this paper we present the data on the fast flickerings observed on 31 August, 1979 and on the long term monitoring from December 1979 to January 1980.
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Sharma, D.P., Nagaraja, B.V., Bhattacharyya, J.C. et al. Observations of X-Per in optical domain. Astrophys Space Sci 95, 65–77 (1983). https://doi.org/10.1007/BF00661156
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DOI: https://doi.org/10.1007/BF00661156