Browsing by Author "Aleem, P. S. M"

Now showing items 6-9 of 9

Improving the image quality at the calcium K and hydrozen spectroheliographs at the Kodaikanal Observatory

Singh, J; Aleem, P. S. M; Nagabhushana, B. S (Indian Institute of Astrophysics, 1988-01)
Solar variability in the CaII K during solar cycles 21 and 22

Sivaraman, K. R; Gupta, S. S; Kariyappa, R; Aleem, P. S. M; Sundararaman, K (Astronomical Society of India, 1993)

We have monitored the sun in the light of the CaII K line and obtained the disc integrated profiles for the years 1974-91. From these profiles we have estimated the variability of the sun as a star as seen in the various ...
Transient activity in the loop prominence system of a flare active region

Bagare, S. P; Nagabhushana, B. S; Aleem, P. S. M (Astronomical Society of Indian, 1989-09)

Solar limb observations of the activity in a loop prominence system associated with an active region were obtained on February 2, 1984. The activity was observed for a total duration of over seven hours of which the maximum ...
The variation of filament direction in a flaring region

Rausaria, R. R; Raman, K. S; Aleem, P. S. M; Singh, J (Kluwer Academic Publishers, 1993-07)

We have analyzed the variations in shear angle over a time interval of 30 s during a flare on June 11, 1991, using Kodaikanal Observatory spectroheliogram and photoheliogram data, and assuming H-alpha filaments are a proxy ...

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