IIA Institutional Repository

Browsing by Subject "Infrared Spectra"

Browsing by Subject "Infrared Spectra"

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  • K emission line widths in the sun and the stars 
    Bappu, M. K. V; Sivaraman, K. R (Royal Astronomical Society, 1977-02)
    K-emission line widths measured with a micrometer on integrated spectra of the sun have a mean value of 38.2 km/s. A definition is proposed whereby the width is a measure in km/s at the inverse-e value of the difference ...
  • Luminosity enhancement of distant radio galaxies and varying G Hoyle-Narlikar cosmology 
    Das, P. K; Sivaram, C (Kluwer Academic Publishers, 1988-04)
    The time evolution of galactic luminosity in the framework of the Hoyle-Narlikar (1964, 1974) (HN) cosmology with a variable gravitational constant G is investigated. The luminosity evolution with redshift is studied for ...
  • On the infrared bands of a A10 related to Mira phenomena 
    Murty, P. S (D. Reidel Publishing Company, 1978-04)
    The calculated band positions and intensity factors for the bands of the infrared A-X transition of A10 suggest that an investigation for the infrared bands in the 1 to 5 micron region of the spectra of Mira stars and M ...
  • The predicted infrared spectrum of ZrO and its possible presence in S stars 
    Murty, P. S (D. Reidel Publishing Company, 1980-04)
    The unidentified absorption feature at 9730 ± 5 A observed in the spectra of pure S stars is provisionally identified with the predicted 9732 A (0, 0) band of the e `IT-c `z\ transition of ZrO molecule. Relative band ...
  • SAO 75669: A late type giant behind the molecular cloud MBM 12 
    Bhatt, H. C; Sagar, R; Subramaniam, A; Gorti, U; Chandrasekhar, T; Ashok, N. M; Ragland, S (European Southern Observatory, 1994-09)
    Photometric and spectroscopic observations of the star SAO 75669 in the region of the high galactic latitude molecular cloud MBM 12 are presented. The optical, near-infrared and far-infrared IRAS photometric magnitudes ...
  • Time variability of the He I 10830 A line profile 
    Singh, J; Jain, S. K; Venkatakrishnan, P (Springer, 1994-03)
    We have studied the time-dependent behavior of the He I 10830 A line. These studies show that (1) the fluctuations of the line width are uncorrelated with the equivalent-width fluctuations and (2) the autocorrelation curves ...

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