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  • Energy and angular momentum transfer in binary galaxies 
    Namboodiri, P. M. S; Kochhar, R. K (NASA, 1990-11)
    The authors numerically studied tidal effects of a massive perturber on a satellite galaxy. The model consists of a spherical satellite galaxy and a point mass perturber and the encounter is non-penetrating. A wide range ...
  • Energy and Radiation Spectrum of Electrons in Ultra-relativistic Shocks of GRB Afterglows 
    Resmi, L; Bhattacharya, D (Astronomical Society of India, 2003)
    We consider particle acceleration near ultra relativistic shocks (shock p 1) and the distribution of accelerated particles in the shock downstream. We suggest that the electron energy spectrum will settle mp into an ...
  • The Energy Dependence of the Photoelectric Attenuation Coefficient of Substances 
    Chatterjee, S; Vyas, A; Ravanfar Haghighi, R; Kumar, P (Global Center for Advanced Research in Biomedical Physics and Biomedical Engineering, 2011)
    Introduction: The photoelectric attenuation coefficient of substances is known to depend upon the energy E of the photon and the effective atomic number of substances (Zeff) as (Zeff x/Ey). No definitive values about ...
  • Energy dependence of x-ray pulse profile of the crab pulsar 
    Mukerjee, K; Agrawal, P. C; Paul, B; Rao, A. R; Vahia, M. N; Yadav, J. S; Seetha, S; Kasturirangan, K (Astronomical Society of India, 1999)
    We obtained pulse profiles of Crab pulsar in 4 different X-ray energy bands between 2 and 30 keV. We found that all the profiles in these energy ranges show two peaks occurring at the same phase joined by a lower but non ...
  • Energy distribution of solar flare events 
    Sen, Samrat; Mangalam, A; Ramesh, R (Cambridge University Press, 2018-02)
    The coronal field typically reorganizes itself to attain a force-free field configuration. We have evaluated the power law index of the energy distribution f(E) = f0E−α by using a model of relaxation incorporating ...
  • Energy enigmas in the early universe and related problems in Newtonian cosmology 
    Sivaram, C (Springer, 1988-01)
    Some paradoxical situations regarding the balance between the different forms of energy present and the velocities of expansion in the early stages of the big bang are discussed. Solutions are suggested in the framework ...
  • Energy exchange during collision of a pair of disc-sphere galaxies 
    Namboodiri, P. M. S; Kochhar, R. K (Kluwer Academic Publishers, 1989-02)
    We have considered the collision of a pair of disc-sphere galaxies under the impulsive approximation to study the variation of the energy change of the disc due to the passage of a spherical galaxy. Various collision ...
  • Energy Loss due to Gravitational Radiation in Galaxy Mergers 
    Sivaram, C; Alladin, S. M (Astronomical Society of Indian, 1986-12)
  • Energy resolution of the TACTIC imaging element 
    Sathyabama, N; Dhar, V. K; Koul, M. K; Bhat, C. L (Astronomical Society of India, 2001)
    We explore here the possibility of using artificial neural network (ANN) for characterization of atmospheric Cerenkov events (progenitor type and energy) detected by the imaging gamma-ray telescope array, TACTIC.
  • Energy Sensitive Search for Pulsed Photons from Crab Pulsar using the TACTIC Imaging Element 
    Rannot, R. C; Yadav, K. K; Dhar, V. K; Tickoo, A. K; Bhatt, N; Bhattacharyya, S; Chandra, P; Goyal, H. C; Kaul, C. L; Kaul, R. K; Kothari, M; Kotwal, S; Koul, R; Sahayanathan, S; Sapru, M. L; Sharma, M; Venugopal, K; Bhat, C. L (Astronomical Society of India, 2003)
    The Imaging Element (IE) of the 4-element TACTIC array of atmospheric Cherenkov telescopes is in operation at Mt. Abu Rajasthan, in Western India. We have successfully detected a steady signal from the Crab Nebula at a ...
  • Energy transport in intense flux tubes on the sun. I - Equilibrium atmosphere 
    Hasan, S. S (The American Astronomical Society, 1988-09)
    Model calculations are performed to determine self-consistently the equilibrium atmosphere in an intense flux tube. The generalization of the Eddington approximation to three dimensions is used to develop a zeroth-order ...
  • Energy transport to the solar corona by magnetic kink waves 
    Choudhuri, A. R; Dikpati, M; Banerjee, D (American Astronomical Society, 1993-08-20)
    We show that the magnetic kink waves generated by the motions of photospheric footpoints of the coronal flux tubes can supply adequate energy for heating the quiet corona, provided there are occasional rapid motions of ...
  • The Engelbert experience: pathways from the past 
    Vishveshwara, C. V (Springer, 1999)
  • The Enhanced Coronal Green Line Intensity and the Magnetic Field Gradients 
    Ramesh, K. B; Nagabhushana, B. S; Varghese, B. A (Indian Academy of Sciences, 2000-12)
  • Enhanced He{I} Absorption at the Feet of Solar X-Ray Loops 
    Venkatakrishnan, P; Sakurai, T; Suematsu, Y; Ichimoto, K (Astronomical Society of Japan, 1996)
    A comparison of He{I} spectroheliograms and Yohkoh soft X-ray images of active regions indicates that He{I} absorption is enhanced at the feet of hot X-ray loops. It is suggested that the conduction of heat from the loops ...
  • Enhanced luminosity of young stellar objects in cometary globules 
    Maheswar, G; Bhatt, H. C (Springer, 2008-06)
    In this study we investigated the effects of external trigger on the characteristics of young stellar objects (YSOs) associated with cometary globules (CGs). We made optical spectroscopy of stars associated with star-forming ...
  • Enhanced role of electron correlation in the hyperfine interactions in D5/22 states in alkaline-earth-metal ions 
    Sahoo, B. K; Sur, C; Beier, T; Das, B. P; Chaudhuri, R. K; Mukherjee, D (The American Physical Society, 2007-04)
    The low-lying n(=3,4,5)d 2D5/2 states of alkaline-earth-metal ions are of vital importance in a number of different physical applications. The hyperfine structure constants of these states are characterized by unusually ...
  • Enhanced spectral absorption in a-silicon photovoltaic cell by inserting c-silicon quantum wells 
    Sircar, R; Tripathi, B; Saxena, A. K; Dibya, P; Srivastava, J. T; Gupta, S (Department of Applied Optics and photonics, University of Calcutta, 2009)
    Quantum well photovoltaic cells (QWPVCs) arc heterostructure devices intended to achieve higher efficiencies than conventional cells. Generally this concept is used in well defined III-V material systems. This paper ...
  • Enhanced star formation in the cometary globules of the GUM nebula 
    Bhatt, H. C (Royal Astronomical Society, 1993-06-01)
    Evidence for an enhanced rate of star formation in the cometary globules of the Gum nebula is presented. The IRAS Point Source Catalog has been searched for sources with spectral energy distributions characteristic of young ...
  • Enhancement factors of parity- and time-reversal-violating effects for monofluorides 
    Sunaga, A; Prasannaa, V. S; Abe, M; Hada, M; Das, B. P (The American Physical Society, 2018-10)
    Heavy polar diatomic molecules are currently one of the leading candidates for probing physics beyond the standard model via studies of time-reversal (T) and parity (P) violations. In this paper, we analyze the ...

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