IIA Institutional Repository

Browsing by Subject "Electromagnetic Radiation"

Browsing by Subject "Electromagnetic Radiation"

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  • Compton cross sections in highly dense plasmas 
    Krishan, V (Astronomical Society of India, 2002)
    The properties of the electromagnetic radiation undergo a fundamental change in the presence of a medium in general and a plasma in particular. Specially the dispersion relation is modified in a way that in a plasma, the ...
  • Electromagnetic radiation in a helical magnetic field 
    Krishan, V (1984)
    Electromagnetic radiation spectrum is studied in a helical magnetic field since such magnetic field configurations may be present in cosmic objects. It is shown that, by a proper choice of the spatial period of the magnetic ...
  • In defence of scientific temper 
    Banyal, R. K (Indian Academy of Sciences, 2009-07-10)
  • Observations and interpretation of solar decameter type IIIb radio bursts 
    Krishan, V; Subramanian, K. R; Sastry, Ch. V (Kluwer Academic Publishers, 1980-06)
    Solar decameter bursts of Type IIIb are observed with a multichannel radiometer at wavelengths around 12m. The time and frequency resolutions were 10 ms and 100 kHz. Observations on the time structure of these bursts are ...
  • On the slow-down of the millisecond pulsar PSR 1937 + 214 
    Sivaram, C; Kochhar, R. K (Springer, 1984-01)
    There are indications that less than 10/sup-3 of the spin-down energy of the millisecond pulsar PSR 1937+214 emerges as electromagnetic radiation. The implications of this result are discussed. The surface magnetic field ...
  • On type II solar radio bursts 
    Thejappa, G (Elsevier, 1986)
    The proposed model for the generation mechanism of type II solar radio bursts is based on the fact that a small fraction of ions is reflected from the supercritical shock front and tend to evolve into a 'ring' in the ...
  • Radio emission from a helical electron beam-plasma system in a twisted magnetic field 
    Krishan, V (Institute of Physics, 1982-01)
    The excitation of electromagnetic radiation near the harmonics of electron plasma frequency from a helical electron beam travelling parallel to a helical magnetic field through a stationary inhomogeneous plasma is studied. ...
  • Rapid polarization variability in intense sources 
    Gangadhara, R. T; Krishan, V (The American Astronomical Society, 1995-02)
    We have recently reported the polarization changes of the intense electromagnetic radiation, in active galactic nuclei and pulsars, due to stimulated Raman scattering. In this paper, we show that the incident and the ...
  • Scattering of quasar radiation in intercloud plasma 
    Krishan, V (Royal Astronomical Society, 1988-09)
    Three different levels of description are available to describe the interaction of electromagnetic radiation with electrons in a fully ionized plasma: stimulated Raman scattering, stimulated Compton scattering, and Compton ...

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