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  • Myths, Superstitions and Propaganda in Scientific Age 
    Banyal, R. K (2012-01)
    From prehistoric times, humans have evolved as pattern seeking and storytelling species. While the capacity to find patterns and infer meanings had obvious advantages for survival, the brain is not always successful in ...
  • M∙ − σ relation in spherical systems 
    Bhattacharyya, D; Mangalam, A (Indian Academy of Sciences, 2018-02)
    To investigate the M∙−σ relation, we consider realistic elliptical galaxy profiles that are taken to follow a single power-law density profile given by Ï (r)=Ï 0(r/r0)−γ or the Nuker intensity profile. We calculate ...
  • N-body problem 
    Bhatnagar, K. B; Saha, L. M (Astronomical Society of India, 1993-03)
    This is a review article on the N-body problem. The development of the qualitative methods regarding the various topics of Celestial Mechanics are presented in a systematic way starting from the early researches of the ...
  • N-Body Simulation of a Deeply Penetrating Collision Between Unequal Galaxies 
    Namboodiri, P. M. S; Sastry, K. S; Narasimhan, K. S. V. S (Kluwer Academic Publishers, 1998-09)
    We study the tidal effects of a deeply penetrating collision between two spherical galaxies, one twice massive but less dense than the other, by numerical simulations. We consider the relative motion of the galaxies to be ...
  • N-body simulations of galaxy collisions 
    Namboodiri, P. M. S; Sastry, K. S; Narasimhan, K. S. V. S (Astronomical Society of India, 2001)
    The tidal effects of close collisions between two spherical galaxies of different mass and mass distributions are studied by numerical simulations. The galaxies are represented by polytropes of indices n = 4 and n = 0 which ...
  • N. R. Pogson (1829 - 1891) 
    Indian Institute of Astrophysics (Indian Institute of Astrophysics, 2006)
  • Naini Tal-Cape survey for pulsating chemically peculiar stars - A status report 
    Seetha, S; Chaubey, U. S; Girish, V; Joshi, S; Ashoka, B. N; Gupta, S. K; Kurtz, D. W; Martinez, P; Sagar, R (Astronomical Society of India, 2001)
    The "Naini Tal-Cape survey for rapidly oscillating Ap stars", to search the northern hemi-sphere sky for pulsating stars was initiated in 1997. This is a collaboration between India and South Africa. So far about 70 stars ...
  • Nano-constraints on the spatial anisotropy of the gravitational constant 
    Unnikrishnan, C. S; Gillies, G. T (Elsevier, 1994-11)
    We present constraints from various experimental data that limit any spatial anisotropy of the gravitational constant to less than a part per 109 or even smaller. This rules out with a wide margin the recently reported ...
  • Narrow Band Photometry in Emission Lines during the Total Solar Eclipse of October 24, 1995 
    Singh, J; Cowsik, R; Venkatakrishnan, P; Srinivasan, R; Chinnappan, V; Raju, K. P; Srikanth, R (Indian Institute of Astrophysics, Bangalore, 1997)
    To investigate the spatial variation of tempereture and density within coronal strucures, narrow band photometry in three coronal emission lines was done during this eclipse. The emission lines 6374 (FeX), 7892 (Fe XI) and ...
  • Narrow band photometry of Comet Halley in the emission bands and the continuum 
    Babu, G. S. D; Nathan, J. S; Rajamohan, R; Sivaraman, K. R (Astronomical Society of Indian, 1989-09)
    IHW filter photometry of Comet Halley was carried out on seven nights during pre-perihelion period and on six nights during post-perihelion period, using the 40-cm telescope at the Vainu Bappu Observatory, Kavalur, as a ...
  • Narrow Band Photometry of Rho Puppis 
    Doss, A. T (Kodaikanal Observatory, 1969-07)
    Monochromatic flux values of the dwarf Cepheid Rho Puppis have been evaluated over the cycle from observations made in the 1967 season through four narrow band filters centred at 3858 A/sup0/ 4310 A/supo/, 4720 A/supo/ and ...
  • Narrow band photometry of selected asteroids 
    Rajamohan, R; Bhargavi, S. G (Lunar and Planetary Inst, 1992-12)
    The CCD photometry of selected asteroids was carried out to check for possible cometary activity in them. To distinguish the asteroids with possible cometary activity from those of the main belt, each object of interest ...
  • Narrow-line Seyfert 1 galaxies 
    Dewangan, G. C (Astronomical Society of India, 2001)
    Narrow-line Seyfert 1 (NLS1) galaxies form a distinct subclass of Seyfert 1 galaxies. Optical spectroscopic and X-ray spectral and timing results on NLS1 and the plausible underlying physical parameters thought to be ...
  • Narrow-line Seyfert 1 galaxies in Sloan Digital Sky Survey: a new optical spectroscopic catalogue 
    Paliya, Vaidehi S; Stalin, C. S; Dominguez, Alberto; Saikia, D. J (Oxford University Press on behalf of Royal Astronomical Society, 2024-01)
    Narrow-line Seyfert 1 (NLSy1) galaxies are an enigmatic class of active galactic nuclei (AGN) that exhibit peculiar multiwavelength properties across the electromagnetic spectrum. For example, these sources have allowed ...
  • National award for scientist 
    The Hindu (The Hindu, 2013-01-30)
  • National Large Solar Telescope of India 
    Hasan, S. S (Astronomical Society of India, 2011)
    The National Large Solar Telescope NLST will be a state-ofthe- art 2-m class telescope for carrying out high-resolution studies of the solar atmosphere. Sites in the Himalayan region at altitudes greater than 4000-m ...
  • National Workshop on Preserving our Scientific Heritage 
    Birdie, C (Indian Institute of Astrophysics, 2008-03)
  • National Workshop on Preserving our Scientific Heritage - Poster 
    IIA Archives (Indian Institute of Astrophysics, 2007-12)
  • National Workshop on Preserving our Scientific Heritage, held at Indian Institute of Astrophysics, Bangalore, January 21 – 22, 2008 – a report 
    Birdie, C; Vagiswari, A; Indira Chowdhury (Indian Natioanl Science Academy, 2008-09)
  • NATO Advanced Study Institute on Energy Sources and Emission Mechanisms of Quasars 
    Ramadurai, S (Astronomical Society of India, 1977-12)

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