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Browsing by Author "Punetha, L. M"

Browsing by Author "Punetha, L. M"

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  • Calcium faculae and solar flare effects 
    Bappu, M. K. V; Punetha, L. M (Taylor and Francis, 1962-08)
  • Centre-to-limb variation of CH line profile parameters 
    Punetha, L. M; Joshi, G. C (Astronomical Society of India, 1984-09)
    Four CH line profiles at mu = 1.0 and 0.2 were Fourier transformed. They show (i) turbulent velocity Sigma/subt/ = 4.0 km s/sup-1/, and (ii) an increase in the Doppler width parameter Delta lamda/subD/ by a factor of 1.03 ...
  • The Cosmic Ray Flare of March 7, 1942 
    Sivaraman, K. R; Punetha, L. M (Kodaikanal Observatory, 1966-11)
    The variation of the dynamic characteristics of the cosmic ray limb flare of March 7, 1942 based on the K/sub232/ spectroheliograms and H-alpha spectrohelioscope observations of Kodaikanal is presented. Although the flare ...
  • Doppler width of CN lines in the Sun 
    Punetha, L. M; Joshi, G. C (Astronomical Society of India, 1984-12)
    The Doppler widths of 0-1, 1-2 and 2-3 vibrational bands of the violet system of CN molecule in the solar atmosphere increase linearly with equivalent width upto approximately equal to 20 mA
  • Franck-Condon factors for some abundant umbral molecules 
    Joshi, G. C; Joshi, U. C; Punetha, L. M; Pande, M. C (Astronomical Society of India, 1982-06)
    Some of the molecular transitions in UV in sunspots are pointed out and Franck-Condon factors for some of these have been calculated.
  • The influence of superflares on the Hα striation pattern 
    Bappu, M. K. V; Bhatnagar, A; Punetha, L. M (Taylor and Francis, 1962-10)
  • Model dependence of the rotational temperature of SiO in sunspots 
    Punetha, L. M; Joshi, G. C (Astronomical Society of India, 1984-09)
    Centre-to-limb variation of the rotational temperature of the fundamental band of SiO in different sunspot models has been calculated. The possibility of using these calculations to pick up the true model on the basis of ...
  • A study of some optical phenomena associated with solar flares 
    Bhatnagar, A; Punetha, L. M (Government Observatory, Madras, 1962-10)
  • Sunspot continuum from 1 to 10 mum and the umbral temperature models 
    Punetha, L. M; Joshi, G. C (Astronomical Society of India, 1984-09)
    Infrared flux in Zwaan`s (1974) and Boyer`s (1980) sunspot models has been calculated in the wavelength range 1 to 10 mu m, taking into account the molecular line haze opacity (Joshi et al. 1979). The calculations are ...

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