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Browsing Publications of Astronomical Society of India by Subject "Solar flares"

Browsing Publications of Astronomical Society of India by Subject "Solar flares"

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  • Analysis of solar flare in CaII K on 1989 March 13 
    Joshi, A; Uddin, W (Astronomical Society of India, 1991)
    We report the CaII K observations of a major umbral solar flare of optical class 3B which occurred on 1989 March 13. Correlated optical, microwave, soft X-ray (SXR), sudden ionospheric disturbance observations and the ...
  • Control and Operation of SOXS High Energy Detector 
    Janawlekar, S. B; Malkar, J. P; Rao, A. R; Vadawale, S. V; Vahia, M. N; Umapathy, C. N (2003)
    The control and operation of the SOXS High Energy Detector (HED) experiment is done using a micro-processor based data handling system (the GSAT-2 SOXS High Energy Electronics package - GXHE). The GXHE system is used for ...
  • Excitation of Solar p-mode Oscillations by Flares 
    Ambastha, A; Basu, S; Antia, H. M (Astronomical Society of India, 2003)
    Solar flares release large amounts of energy at different layers of the solar atmosphere. It is, therefore, expected that major flares would be able to excite waves, thereby affecting the p-mode oscillation characteristics. ...
  • H-alpha flare associated microwave emissions 
    Jain, Rajmal (Astronomical Society of India, 1985-09)
  • Magnetohydrostatic equilibrium in solar coronal arcades 
    Chandra, S; Prasad, L (Astronomical Society of India, 1994)
    We present a solution of magnetohydrostatic equations after including the effect of gravity. For low values of the parameters beta, there exist two solutions for the common boundary condition at the base of the corona. ...
  • On the recurrence of sudden ionospheric disturbances 
    Shelke, R. N; Pande, M. C (Astronomical Society of India, 1984-09)
  • A report on PRL's interplanetary scintillation (IPS) radio telescopes 
    Vats, Hari Om; Deshpande, M. R (Astronomical Society of India, 1994)
    Physical Research Laboratory (PRL) has two radio telescopes operating at 103 MHz. The telescopes are situated at Thaltej and Rajkot. This article briefly describes the various sub-systems of these telescopes. There has ...
  • Study of Three Homologous Solar Flares Observed from Active Region NOAA 9033 on 12th June 2000 
    Verma, V. K; Vats, H. O (Astronomical Society of India, 2003)
    In the paper, we present a study of three homologous H flares observed on 12th June 2000 in active region (AR) NOAA 9033. During the observation of AR NOAA 9033 on 12th June 2000, we observed 1st solar flare between 0135-0155 ...
  • Sudden phase anomalies during solar flares 
    Pant, P (Astronomical Society of India, 1994)
    The solar flares during 1977 September have been analyzed in the light of their sudden phase anomalies (SPA) signals over long propagation paths. The analyzed data show an apparent linear relation between log (sec chi) and ...
  • Time delay between H-alpha and soft x-ray emissions during solar flares 
    Verma, V. K; Pande, M. C (Astronomical Society of India, 1985-06)
    A statistical analysis of time delays between H-alpha and soft x-ray (SXR) emissions at onset and peak respectively during solar flares is presented. We find that at the onset of flares SXR emission starts simultaneously ...

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