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  • Integrated photometric characteristics of galactic open star clusters 
    Lata, S; Pandey, A. K; Sagar, R; Mohan, V (E D P Sciences, 2002-06)
    Integrated UBVRI photometric parameters of 140 galactic open clusters have been computed. Integrated I(V-R)0 and I(V-I)0 colours as well as integrated parameters for 71 star clusters have been obtained for the first time. ...
  • Integrated photometric parameters of open and globuler clusters 
    Sagar, R; Joshi, U. C; Sinvhal, S. D (Astronomical Society of India, 1983-03)
    In this work we have discussed UBV parameters of 142 galactic clustes and 32 globular clusters. Comparison of the integrated parameters of galactic clusters with the theoretical ones confirms the validity of the basic ...
  • Intense beam of light 
    Sivaram, C (Deccan Herald, 2010-05-11)
  • Intense Diffuse Far-Ultraviolet Emission from the Orion Nebula 
    Murthy, J; Sahnow, D. J; Henry, R. C (American Astronomical Society, 2005-01)
    We present spectra of the diffuse far-UV (900-1200 Å) emission from a region near the Orion Nebula: the first high-resolution spectra of the diffuse background radiation. These observations were made using serendipitous ...
  • Intense maganetic fields in the atmosphere of the sun 
    Hasan, S. S (Anita Publications, 2005)
  • Intensified CCD Camera Based Remote Guiding Unit for VBT and Observation of Speckles with ICCD 
    Chinnappan, V; Saha, S. K; Faseehana (Indian Institute of Astrophysics, Bangalore, 1991)
    For successful observations in any telescope, guiding becomes important. On 2.34 m Telescope at Vainu Bappu Observatory, Kavalur, a remote guiding system is assembled using Intensified CCD camera and a PC based image ...
  • Intensities of CII and CO lines and emissions from interstellar dust 
    Qaiyum, A (Astronomical Society of India, 2004-12)
    A comparative study of Weingartner and Draine (2001) (hereinafter referred as WD) and Bakes and Tielens (1994) (hereinafter referred as BT) models of photoelectric heating effiencies of gas shows that for neutral medium ...
  • Intensity and velocity oscillations in a flaring active region 
    Millar, David C. L; Fletcher, Lyndsay; Joshi, Jayant (Oxford University Press on behalf of Royal Astronomical Society, 2024-01)
    Chromospheric oscillations can give us insight into the physical environment in the solar atmosphere, both in quiet Sun and flaring conditions. Many authors have reported increases in the prevalence of 3-minute oscillations ...
  • Intensity Changes in Sunspots and Starspots 
    Venkatakrishnan, P (Astronomical Society of India, 1978-12)
  • Intensity distribution and contrast of the solar EUV network 
    Raju, K. P (Springer, 2010-03)
    Intensity distributions of the EUV network and the cell interior in the solar atmosphere have been obtained in fourteen emission lines from Solar and Heliospheric Observatory (SOHO)/Coronal Diagnostic Spectrometer (CDS) ...
  • Intensity distribution in the A2P-X2S+ system of yttrium monoxide 
    Bagare, S. P; Murthy, N. S (Indian Academy of Sciences, 1982-11)
    The integrated intensities of a few bands in the vibrational structure of the astrophysically significant ‘orange’ system of the molecule yttrium monoxide, have been measured experimentally by the technique of photographic ...
  • Intensity Fluctuation in the Solar Chromosphere 
    Sivaraman, K. R; Venkitachalam, P. P (Indian Institute of Astrophysics, Bangalore, 1977)
    High resoulution spectrograms of the Balmer lines obtained at five positions from the centres to the limb have been used to study the r. m. s. intensity fluctuations and their dependence on the heliocentric angle. The ...
  • Intensity fluctuation of shadow bands during total solar eclipse of October 24, 1995 
    Shelke, R. N; Ingole, V. T (Indian Institute of Astrophysics, 1997)
    Intensity fluctuations of shadow bands during total solar eclipse of October 24, 1995 were recorded on magnetic tape using cross - shaped array of sixteen photo detectors at Nim Ka Thana. The plane of the array was placed ...
  • Intensity Fluctuations in the H-alpha line caused by Chromospheric mottling 
    Bappu, M. K. V (IETE, 1964)
    Spectra of the H-alpha line obtained with high dispersion and high spatial resolution are used to study some of the characteristics of chromospheric mottling on the solar disk. The fluctuations in intensity, indicated by ...
  • Intensity oscillation in the corona as observed during the Total Solar Eclipse of 29 March 2006 
    Singh, J; Hasan, S. S; Gupta, G. R; Banerjee, D; Muneer, S; Raju, K. P; Bagare, S. P; Srinivasan, R (Springer, 2009-11)
    We obtained the images of the eastern part of the solar corona in the Fe xiv 530.3 nm (green) and Fe x 637.4 nm (red) coronal emission lines during the total solar eclipse of 29 March 2006 at Manavgat, Antalya, Turkey. ...
  • Intensity oscillations and heating of the coronal X-ray bright points from Hinode/XRT 
    Kariyappa, R; Varghese, B. A (EDP Sciences, 2008-07)
    Aims. Our aim is to investigate the intensity oscillations in coronal X-ray Bright Points (XBPs). Methods. We analysed a 7 h long time sequence of the soft X-ray images obtained on April 14, 2007 with a 2 min cadence using ...
  • Intensity oscillations in chromospheric bright points and network elements 
    Kariyappa, R (Springer, 1994-09)
    From a 35-min time series of photographic spectra in the Ca II H-line obtained at the Vacuum Tower Telescope (VTT) of the Sacramento Peak Observatory under high spatial, spectral, and temporal resolution, we have derived ...
  • Intensity profile of light scattered from a rough surface 
    Chatterjee, S; Vani, V. C; Banyal, R. K (Optical Society of America, 2013-08-20)
    We present in this paper, approximate analytical expressions for the intensity of light scattered by a rough surface, whose elevation ξ x; y in the z-direction is a zero mean stationary Gaussian random variable. With ...
  • Intensity variation in sunspots 
    Ananthakrishnan, R (Nature Publishing Group, 1951-08)
    The most conspicuous and readily observed feature of a normal sunspot is a dark central umbra surrounded by a less dark penumbral fringe which, under good seeing conditions, appears to be composed of converging filaments ...
  • Intensity Variation of Photons During the Solar Eclipse 
    Chandole, S. V; Shah, S. S (Tata Institute of Fundamental Research, Bombay, 1980-06)
    The study was aimed to determine the variation of intensity of photons from the Sun during solar eclipse at Aurangabad (altitude 586 meters, latitude 19 degree 5' and longitude 95 degree 24'). It was carried out with the ...

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