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Browsing by Author "Rajamanickam, N"

Browsing by Author "Rajamanickam, N"

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  • Identification of AlF Molecular Lines in Sunspot Umbral Spectra 
    Bagare, S. P; Balachandra Kumar, K; Rajamanickam, N (Springer, 2006-03)
    High resolution FTS sunspot umbral spectra from NSO/Kitt Peak were used to detect rotational lines due to 11 electronic transitions of the molecule AlF, in the wavelength region 4400 9000 Å. The presence of lines due to ...
  • Identification of beryllium hydride isotopomer lines in sunspot umbral spectra 
    Shanmugavel, R; Bagare, S. P; Rajamanickam, N; Balachandra Kumar, K (Astronomical Observatory, Serbia, 2008-06)
    A high resolution spectrum of FTS sunspot umbra of NSO/Kitt Peak was used to conduct a search for the molecular absorption lines due to BeH, BeD and BeT isotopomers. Analysis led to estimates of identification of the ...
  • 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 ...
  • Investigation of the rotational lines of A–X and C–A band systems of aluminium deuteride molecule using sunspot umbral spectra 
    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), ...
  • Molecular parameters for D, E, F, and G-A band systems of the astrophysically significant molecule AlF 
    Kumar, K. B; Bagare, S. P; Rajamanickam, N (Springer, 2004-01)
    Franck-Condon factors andr-centroids, which are a measure oftransition probabilities, have been evaluated by a numerical integration procedure for the bands of D1Δ,E1Π, F1Π and G1Σ+ A1Π systems of AlFmolecule.The species ...
  • 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 - ...
  • On the Franck-Condon factors and R-centroids of the astrophysically interesting molecule CS 
    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 ...
  • On the rotational temperature of AlH in Sunspots 
    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 ...
  • On the search for BF, BH and BS molecular lines in sunspot spectra 
    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 ...
  • 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 ...
  • Some useful data for the astrophysical molecules AlS and BS 
    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 ...
  • Transition probabilities and dissociation energy of astrophysical molecule CoH 
    Prithivikumaran, N; Fernandez Gomez, M; Lopez Gonzalez, J. J; Bagare, S. P; Rajamanickam, N (Springer, 2002)
    The Franck-Condon (FC) factors (transition probabilities) and r-centroids have been evaluated by the reliable numerical integration procedure for the bands of the A^3 φ_4 --> X^3 φ_4 system of astrophysical molecule CoH, ...
  • Transition probability parameters for certain band systems of astrophysical molecule GeO 
    Rajamanickam, N; Shanmugavel, R; Prithivikumaran, N; Palaniselvam, T; Bagare, S. P (Elsevier Science B.V., 2003-05)
    The transition probability parameters, Franck-Condon factors and /r-centroids, have been evaluated using the most reliable numerical integration procedure for the bands of E1Σ+, F1Σ+, /GΣ, HΠ, JΣ-X1Σ+ systems of astrophysical ...
  • Transition Probability Parameters for Certain Band Systems of the Astrophysical Molecule PO 
    Balachandra Kumar, K; Raja, V; Nagarajan, K; Bagare, S. P; Rajamanickam, N (Institute of Theoretical Physics and Astronomy of Vilnius University, 2002)
    The transition probability parameters, Franck-Condon factors and r-centroids have been evaluated by a new more reliable numerical integration procedure for the bands of the PO molecule in the ultraviolet region (1800--2900 ...
  • 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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