IIA Institutional Repository

Browsing by Subject "Ionization"

Browsing by Subject "Ionization"

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  • Daytime satellite radio scintillation and sporadic E near the magnetic equator 
    Rastogi, R. G; Deshpande, M. R; Murthy, B. S; Davies, K (American Geophysical Union, 1977-03)
    An investigation is conducted concerning the association between the daytime scintillations of ATS-6 signals received at Ootacamund and the ionograms at the nearby station Kodaikanal, India. The investigation shows that ...
  • The implications of gamma-ray lines observed from the Orion complex 
    Cowsik, R; Friedlander, Michael. W (The American Astronomical Society, 1995-05)
    The observation of intense gamma-ray line emission from the Orion complex, attributed by Bloemen et al. to de-excitation of cosmic-ray carbon and oxygen nuclei, has important implications for emission from Orion in the ...
  • Ionization in Ps-H scattering 
    Ray, H (Elsevier, 2002-06)
    Coulomb–Born approximation has been used to study three different types of ionization in positronium (Ps) and hydrogen scattering. The present Ps–H system contains four centers; we have considered all the Coulomb interactions ...
  • Ionizations in Ps-atom scattering 
    Ray, H (Elsevier, 2002-05)
    Ionizations in Ps-atom scattering are studied using three different types of target: H, He and Li. Three different types of ionization cross-sections are compared, considering a large number of excitation channels of both ...
  • Ionized Gas in Elliptical Galaxies 
    Singh, K. P; Prabhu, T. P; Kembhavi, A. K; Bhat, P. N (Indian Academy of Sciences, 1995-06)
    We report observations of H alpha nebulosities in the X-ray bright elliptical galaxies which are members of nearby groups of galaxies or clusters. Our sample includes NGC 1399, NGC 1600, NGC 2563, NGC 3607, NGC 4203, ...
  • Reflection of radio radiation at ionization fronts in emission line regions and accretion disks of active galactic nuclei 
    Krishan, V (The Royal Swedish Academy of Sciences, 1994)
    It is known that high frequency short duration electromagnetic pulses can be generated by reflection of low frequency radiation off relativistically moving ionization fronts. In addition, a part of the incident electromagnetic ...

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