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

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

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  • 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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