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  • EUV Models of the Chromosphere-Corona Transition Region 
    Raghavan, N (Astronomical Society of India, 1977-12)
  • Evaluation of analytic molecular orbital derivatives and gradients using the effective valence shell Hamiltonian method 
    Chaudhuri, R. K; Stevens, J. E; Freed, K. F (American Institute of Physics, 1998-12)
    Expressions for the analytic energy gradients and the nonadiabatic derivative couplings are derived for the effective valence shell Hamiltonian theory (a variant of degenerate/quasidegenerate many-body perturbation theory) ...
  • Evaluation of astrophysically useful parameters for HD molecule 
    Karthikeyan, B; Rajamanickam, N; Bagare, S. P (Elsevier, 2006-10)
    The spectrum of HD molecule is the testing ground of both refined calculations and experimental techniques and its excited states are of considerable relevance to chemistry and astrophysics. In this study, the Franck Condon ...
  • Evaluation of Astrophysically Useful Parameters for LaO Molecule 
    Sri Ramachandran, P; Shanmugavel, R; Rajamanickam, N; Bagare, S. P (Editura Academiei Romane, 2008)
  • Evaluation of Astrophysically Useful Parameters for Strontium Monohydride and Deuteride 
    Sri Ramachandran, P; Rajamanickam, N; Bagare, S. P (Astronomical Observatory, Serbia, 2006-06)
    The Franck-Condon factors and r-centroids which are very closely related to transition probabilities, have been evaluated by the more reliable numerical integration procedure for the band systems B^{2}sum - X^{2}sum, ...
  • Evaluation of fractional clear sky over potential astronomical sites 
    Shantikumar, N. S; Song, H.- J; Mugil, S. K; Dumka, U. C; Larson, E. J. L; Brijesh Kumar; Sagar, R (Oxford University Press on behalf of Royal Astronomical Society, 2021-11)
    The estimation of the night-time cloud fraction (CF) is found to be one of the key parameters for evaluating the number of useful nights at an astronomical site. This work evaluates useful astronomical night-time observation ...
  • Evaluation of Lijiang Gaomeigu site for astrophysical observation 
    Tan, H; Cen, X; Qian, T; Wang, J (Astronomical Society of India, 2002-12)
    The work on the site testing at the Gaomeigu village Lijiang country in the northwest of Yunnan province, was started in 1994 after the completion of the investigation on optical astronomical observatory site survey over ...
  • An Evaluation of Possible Mechanisms for Anomalous Resistivity in the Solar Corona 
    Singh, K. A. P; Subramanian, P (Springer Netherlands, 2007-07)
    A wide variety of transient events in the solar corona seem to require explanations that invoke fast reconnection. Theoretical models explaining fast reconnection often rely on enhanced resistivity. We start with data ...
  • Evaluation of the effective temperature of sunspots using molecular parameters of AlF 
    Balachandra Kumar, K; Raja, V; Karthikeyan, B; Bagare, S. P; Rajamanickam, N (Hindawi Publishing Corporation, 2015-07-07)
    The physical conditions of celestial objects can be analyzed using the spectrum of atoms or molecules present in the object. The present work focuses on the spectroscopic analysis of astrophysically significant molecule ...
  • Evaluation of the performance of centroiding algorithms with varying spot size: case of WFS calibration for the TMT NFIRAOS 
    Vyas, A; Ellerbroek, B. L; Roopashree, M. B; Andersen, D. R; Prasad, B. R (Optical Society of America, 2011-07)
    In this AO system, a low-bandwidth truth wavefront sensor detects biases in the laser-guide-star-based wavefront measurement, arising from uncertainties in the sodium layer profile. Here, the performance of centroiding ...
  • The Evershed Effect and Line Asymmetry in Sunspot Penumbrae 
    Bhatnagar, A (Kodaikanal Observatory, 1966-11)
  • The Evershed effect as we understand it today 
    Rajaguru, S. P (Indian Academy of Sciences, 2009-11)
    Following a description of the Evershed effect as observed by John Evershed in 1909 at the Kodaikanal Solar Observatory, we discuss the evolution of our scientific understanding that accompanied the development of the ...
  • The Evershed Effect in Sunspots 
    Bhatnagar, A (Indian Institute of Astrophysics, Kodaikanal Observatory, Kodaikanal, 1964-07)
  • Evershed flow velocities during 100 years 
    Hiremath, K. M (Springer, 2010)
    An extensive literature survey indicates that the peak velocities of the Evershed flows in sunspots at the photospheric level are independent of the strength of the solar activity cycle. This result is discussed in the ...
  • Evershed velocities in bipolar sunspots 
    Sundararaman, K; Aleem, P. S. M; Thiagarajan, R (Astronomical Society of India, 1999)
    Spectra taken at the solar telescope-spectrograph, Kodaikanal, are analysed to find the sight-line velocity values in the regions between the opposite polarity sunspots. Velocities in opposite directions in the range 1 - ...
  • Evidence for Low-power Radio Jet–ISM Interaction at 10 pc in the Dwarf AGN Host NGC 4395 
    Nandi, Payel; Stalin, C. S; Saikia, D. J; Riffel, Rogemar A; Manna, Arijit; Pal, Sabyasachi; Dors, O. L; Wylezalek, Dominika; Paliya, Vaidehi S; Saikia, Payaswini; Dabhade, Pratik; Patig, Markus-Kissler; Sagar, R (American Astronomical Society, 2023-12-20)
    Black-hole-driven outflows in galaxies hosting active galactic nuclei (AGN) may interact with their interstellar medium (ISM) affecting star formation (SF). Such feedback processes, reminiscent of those seen in ...
  • Evidence for nonthermal radiation from the nuclei of Seyfert galaxies 
    Deshpande, M. R; Joshi, U. C (Astronomical Society of India, 1993)
    We report the detection of nonthermal radiation from the nuclei of four Seyfert galaxies through polarization studies. Our investigations on four galaxies (NGC 3081, NGC 4388, NGC 3227 and NGC 2992) show evidence of ...
  • Evidence for OI 630.0 nm dayglow variations over low latitudes during onset of a substorm 
    Chakrabarty, D; Sekar, R; Sastri, J. H; Pathan, B. M; Reeves, G. D; Yumoto, K; Kikuchi, T (American Geophysical Union, 2010-10)
    Observations of OI 630.0 nm dayglow intensity from Mt. Abu (magnetic latitude (MLAT): 16.2°N; magnetic longitude (MLONG): 148°E) at two different directions corresponding to two different magnetic latitudes (MLATZenith: ...
  • Evidence for return meridional flows in the convection zone 
    Sivaraman, K. R; Sivaraman, H; Gupta, S. S; Howard, R. F (Springer, 2010)
    We report velocities of meridional motions derived from the latitude drifts of spot groups measured on photographic images of the Sun in the Kodaikanal observatory archives. They serve to measure different meridional flows ...
  • Evidence for the quantum birth of our Universe 
    Unnikrishnan, C. S; Gillies, G. T; Ritter, R. C (Indian Academy of Sciences, 2002-08)
    We present evidence for a nonsingular origin of the Universe with initial conditions determined by quantum physics and relativistic gravity. In particular, we establish that the present temperature of the microwave background ...

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