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Browsing by Author "Karthikeyan, B"

Browsing by Author "Karthikeyan, B"

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  • Karthikeyan, B; Balachandra Kumar, K; Rajamanickam, N; Bagare, S. P (Astronomical Society of India, 2006-06)
    Astrophysical applications are broadened by the emerging consensus on the vibration-electronic (vibronic) transition probability parameters such as Franck - Condon (FC) factors & r - centroids of some molecular species ...
  • Karthikeyan, B; Raja, V; Rajamanickam, N; Bagare, S. P (Springer, 2006-12)
    For molecular identification in astrophysical sources, an astrophysicist needs some spectroscopic parameters such as dissociation energy, vibrational or rotational temperature of the source, band or line wavelengths, ...
  • Karthikeyan, B; Shanmugapriya, G; Rajamanickam, N; Bagare, S. P (Elsevier B.V, 2020-07)
    A high-resolution sunspot umbra spectrum recorded in National Solar Observatory, Kitt Peak in the visible and infrared wave number range 13, 600 – 25, 000cm−1 was taken in the present study for identifying the rotational ...
  • Shanmugapriya, G; Karthikeyan, B; Balachandrakumar, K; Rajamanickam, N; Bagare, S. P (Springer, 2015-06)
    It is essential to know the composition of atoms or molecules present in the astrophysical objects concerned to determine the physical and chemical nature of a solar or stellar region. With the aim to identify them clearly, ...
  • 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 ...
  • 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 ...
  • Shanmugapriya, G; Karthikeyan, B; Rajamanickam, N; Bagare, S. P (Springer, 2022-09)
    A high-resolution sunspot umbra spectrum recorded in National Solar Observatory, Kitt Peak, in the visible and infrared wave number range was used to search the rotational lines of A 1Π–X 1Σ+ (0,0), (0,0), (1,0), (1,1), ...
  • Karthikeyan, B; Raja, V; Rajamanickam, N; Bagare, S. P (National Library of Serbia, 2007-12)
    In molecular astrophysics, the Franck-Condon (FC) factors and r-centroids are essential for the interpretation of spectral intensities in terms of emitting astrophysical source conditions. They have been evaluated for the ...
  • Karthikeyan, B; Rajamanickam, N; Bagare, S. P (Springer, 2010-07)
    A search has been carried out for the presence of rotational lines of two bands of the (0, 0) and (1, 1) A 1Π – X 1Σ+ system of the AlH molecule in the high resolution Fourier Transform Spectra of sunspots observed at the ...
  • Karthikeyan, B; Bagare, S. P; Rajamanickam, N; Raja, V (Elsevier, 2009-02)
    A search has been carried out for the presence of rotational lines of boron containing diatomic molecules BF, BH and BS in the high resolution Fourier Transform Spectra of sunspots observed at the National Solar Observatory ...
  • Karthikeyan, B; Rajamanickam, N; Bagare, S. P (Elsevier B.V, 2007-06)
    The vibronic (vibration-electronic) transition probability parameters such as Franck-Condon (FC) factors and r-centroids of diatomic molecular species could be useful in the identification of molecular lines and in the ...

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