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  • Nuclear matter in the derivative scalar coupling model. Energy per nucleon and a finite temperature equation of state 
    Datta, B; Sahu, P. K (Elsevier Science B.V., 1993-12-02)
    We calculate an equation of state of nuclear matter based on the derivative scalar coupling model proposed by Zimanyi and Moszkowski, using improved values of the saturation density and binding energy. Comparison of this ...
  • Nuclear structure effects in parity non-conservation in heavy ions 
    Panda, P. K; Das, B. P (Indian Association for the Cultivation of Science, 2010-07)
    We calculate the binding energy, charge radii in ,129Ba-143Ba and 214Ra-228Ra using the relativistic mean field theory which includes scalar and vector mesons. We then evaluate the nuclear structure corrections to the ...
  • Nuclear-spin-dependent parity-nonconserving transitions in Ba/sup+ and Ra/sup+ 
    Geetha, K. P; Singh, A. D; Das, B. P; Unnikrishnan, C. S (The American Physical Society, 1998-07)
    An experiment to observe parity nonconservation using the \|5p/Sup66s>1/2-->\|5p/Sup65d>3/ 2 transition in Ba/Sup +has been proposed [N. Fortson, Phys. Rev. Lett., 70, 2383 (1993)]. We have carried out relativistic ...
  • Nucleus of NGC 2903 
    Prabhu, T. P (D.Reidel Publishing Co.,, 1980-04)
    The nucleus of NGC 2903 is identified on near infrared photographs. The energy distribution of this nucleus in the visual region of the spectrum is estimated from available observations. The continuum compares well with ...
  • Numerical Evaluation of Spherical Bessel and Related Functions 
    Shah, G. A (Indian Institute of Astrophysics, Bangalore, 1983)
    Techniques for calculating the spherical Bessel functions of complex argument lying in any quadrant of the z-plane and arbitary orders have been developed. The method applies to real, pure imaginary or complex arguments. ...
  • Numerical Methods for Mie Theory of Scattering by a Sphere 
    Shah, G. A (Indian Institute of Astrophysics, Bangalore, 1977)
    A new procedure for evaluating the basic quantities connected with the Mie theory of scattering by a sphere is presented. Some independent numerical techniques are developed to enable one to achieve the desired accuracy. ...
  • Numerical Methods for Solving the Polarized Line Transfer Equations with Partial Frequency Redistribution 
    Nagendra, K. N; Frisch, H; Fluri, D. M (Astronomical Society of the Pacific, 2003)
    In this paper we present brief review on Polarized Approximate Lamda Iteration (PALI) line radiative transfer method, for solving the Hanle effect line formation problem with Angle Averaged (AA) partial frequency redistribution. ...
  • Numerical methods in polarized line formation theory 
    Nagendra, K. N; Sampoorna, M (Astronomical Society of the Pacific, 2009-06)
    We review some numerical methods and provide benchmark solutions for the polarized line formation theory with partial redistribution (PRD) in the presence of magnetic fields. The transfer equation remains non-axisymmetric ...
  • Numerical Simulation of Wave Propagation in Magnetic Network 
    Vigeesh, G; Hasan, S. S; Steiner, O (Cambridge University Press, 2009-03)
    We present 2-D numerical simulations of wave propagation in the magnetic network. The network is modelled as consisting of individual magnetic flux sheets located in intergranular lanes. They have a typical horizontal size ...
  • A numerical solution of the line transfer equation in a spherically symmetric atmosphere. 
    Mohan Rao, D (Elsevier B. V, 1999-05)
    A numerical solution based on finite differences is proposed for solving the line transfer equation in a spherically symmetric atmosphere. The author discretizes the curvature term in the equation by the backward difference ...
  • Numerical solution of the radiative transfer equation in a magnetized medium 
    Nagendra, K. N; Peraiah, A (Blackwell Publishing, 1985-05)
    A numerical method of solution based on the discrete space theory of radiative transfer as applied to the transfer problems in an anisotropic medium is discussed. Two simple applications, namely the scattering in the ...
  • Numerical Solutions of Polarized Line Transfer Equations 
    Nagendra, K. N (Astronomical Society of the Pacific, 2003)
    Recent developments in the NLTE polarized line formation theory in Astrophysics is discussed. Attention is focussed on pure theoretical aspects of the problem. A conventional method of solving the line transfer equation ...
  • A Numerical Survey of Neutron Star Crustal Density Profiles 
    Datta, B; Thampan, A. V; Bhattacharya, D (Indian Academy of Sciences, 1995-12)
    An accurate numerical survey of the density profiles corresponding to the crusts of neutron stars for representative equation of state models is presented. This will find application in calculations of thermal and magnetic ...
  • NuSTAR and Swift observations of the extragalactic black hole X-ray binaries 
    Jana, Arghajit; Naik, Sachindra; Chatterjee, Debjit; Jaisawal, Gaurava K. (Oxford University Press on behalf of Royal Astronomical Society, 2021-11)
    We present the results obtained from detailed spectral and timing studies of extragalactic black hole X-ray binaries LMC X–1 and LMC X–3, using simultaneous observations with Nuclear Spectroscopic Telescope Array (NuSTAR) ...
  • NuSTAR spectral analysis of three Seyfert galaxies: NGC 3227, NGC 5548, and MR 2251−178 
    Pal, Indrani; Stalin, C. S; Mallick, L; Priyanka Rani (EDP Sciences, 2022-06)
    Context. The observed nuclear X-ray emission in the radio-quiet category of active galactic nuclei (AGN) is believed to be from a compact region, the corona, which is situated in the vicinity of central supermassive black ...
  • NuSTAR, Swift, and GROND observations of the flaring MeV blazar PMN J0641-0320 
    Ajello, M; Ghisellini, G; Paliya, Vaidehi S; Kocevski, D; Tagliaferri, G; Madejski, G; Rau, A; Schady, P; Greiner, J; Massaro, F; Balokovic, M; Buhler, R; Giomi, M; Marcotulli, L; D'Ammando, F; Stern, D; Boggs, S. E; Christensen, F. E; Craig, W. W; Hailey, C. J; Harrison, F. A; Zhang, W. W (IOP Publishing, 2016-07-20)
    MeV blazars are a sub-population of the blazar family, exhibiting larger-than-average jet powers, accretion luminosities, and black hole masses. Because of their extremely hard X-ray continua, these objects are best studied ...
  • O VI absorption in the milky way along the large magellanic cloud lines of sight 
    Sarma, R; Pathak, A; Pradhan, A. C; Murthy, J; Sarma, J. K (Elsevier B.V, 2014-03-15)
    We have used Far Ultraviolet Spectroscopic Explorer (FUSE) observations of the Large Magellanic Cloud (LMC) to determine the O vi column densities in the Milky Way (MW) towards 6 LMC lines of sight. The mean column density ...
  • O VI Asymmetry and an Accelerated Outflow in an Obscured Seyfert: FUSE and HST STIS Spectroscopy of Mrk 533 
    Shastri, P; Murthy, J; Whittle, Mark; Wills, B. J (The American Astronomical Society, 2006-07-20)
    We present far-ultraviolet spectra of the Seyfert 2 galaxy Mrk 533 obtained with FUSE. These spectra show narrow asymmetrical O VI λλ1032,1038 emission lines with stronger wings shortward of the peak wavelength, but the ...
  • [O/Fe] Estimates for Carbon-enhanced Metal-poor Stars from Near-infrared Spectroscopy 
    Kennedy, C. R; Sivarani, T; Beers, T. C; Lee, Y. S; Placco, V. M; Rossi, S; Christlieb, N; Herwig, F; Plez, B (IOP Publishing, 2011-03)
    We report on oxygen abundances determined from medium-resolution near-infrared spectroscopy for a sample of 57 carbon-enhanced metal-poor (CEMP) stars selected from the Hamburg/ESO Survey. The majority of our program stars ...
  • Obituaries: M.K. Vainu Bappu 
    Bhattacharyya, J. C (Royal Astronomical Society, 1983-03)

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