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Browsing by Author "Sriramachandran, P"

Browsing by Author "Sriramachandran, P"

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  • Identification of CrH and CrD molecular lines in the sunspot umbral spectrum 
    Viswanathan, B; Shanmugavel, R; Bagare, S. P; Rajamanickam, N; Sriramachandran, P (Springer, 2009-07)
    High-resolution Fourier transform spectrometer sunspot umbral spectra obtained at the National Solar Observatory/Kitt Peak were used to identify molecular rotational lines arising from the infrared band systems of CrH and ...
  • Identification of SrF molecular lines in the spectrum of sunspot umbra 
    Sriramachandran, P; Shanmugavel, R; Bagare, S. P; Rajamanickam, N (Springer, 2009-09)
    A high resolution spectrum of a sunspot umbra is used for identification of rotational lines due to (0, 0) band of the A 2Π–X 2Σ+ system and (0, 0), (1, 1), and (2, 2) bands of the B 2Σ+–X 2Σ+ system of the molecule ...
  • On the effective temperature of sunspot umbrae using beryllium hydride isotopomer lines 
    Sangeetha, R; Sriramachandran, P; Bagare, S. P; Rajamanickam, N; Shanmugavel, R (Astronomical Observatory, Serbia, 2009-12)
    A search for fourteen bands of the visible and infrared systems of the beryllium hydride isotopomers, in addition to the previously identified bands A - X(0, 0; 1, 1; 2, 2) for BeH, A - X(0, 0; 1, 1; 2, 2) for BeD and A - ...
  • Presence of LaO, Presence of LaO, ScO and VO molecular lines in sunspot umbral spectra 
    Sriramachandran, P; Bagare, S. P; Rajamanickam, N; Balachandra Kumar, K (Springer, 2008-11)
    High-resolution Fourier Transform Spectrometer sunspot umbral spectra of the National Solar Observatory/National Optical Astronomy Observatory at Kitt Peak were used to detect rotational lines from 19 electronic transition ...
  • Transition probability parameters for the band systems G, H and I-B of astrophysical molecule PO 
    Rajamanickam, N; Balachandra Kumar, K; Shanmugavel, R; Sriramachandran, P; Nagarajan, K; Bagare, S. P (Springer, 2003-06)
    The transition probability parameters, Franck - Condon factors and r-centroids, have been evaluated by the more reliable numerical integration procedure for the bands of G, H and I-B systems of astrophysical molecule PO, ...

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