Please use this identifier to cite or link to this item: http://nopr.niscair.res.in/handle/123456789/8739
Title: Spectroscopic studies of molecules observed in comets
Authors: Reddy, R R
Gopal, K Rama
Ahammed, Y Nazeer
Basha, D Baba
Narasimhulu, K
Reddy, L Siva Sankar
Keywords: Comets
Franck-Condon factors
r-centroids
Astronomical spectra
Potential energy curves
Issue Date: Apr-2005
Publisher: CSIR
Series/Report no.: G01J3/28
Abstract: The potential energy curves for the different electronic states of molecules like N2+, N2, OH and S2 observed in comets are constructed by using the Rydberg–Klein–Rees method as modified by Vanderslice et al. The ground state dissociation energies are determined by curve fitting technique using the five parameter Hulburt-Hirschfelder (H-H) function. The estimated dissociation energies are 8.587±0.248, 9.620±0.275, 4.308±0.118 and 4.325 ±0.115 eV for N2+, N2, OH and S2 respectively. These values are in good agreement with the literature values. The r-centroids and Franck-Condon factors (FC factors) for the band system of A–X system of N2+ and A–X and B–X system of N2 molecules have been calculated employing approximate analytical methods of Jarmain and Fraser and Nicholls and Jarmain. The absence of the bands in these systems is explained.
Description: 237-245
URI: http://hdl.handle.net/123456789/8739
ISSN: 0975-1041 (Online); 0019-5596 (Print)
Appears in Collections:IJPAP Vol.43(04) [April 2005]

Files in This Item:
File Description SizeFormat 
IJPAP 43(4) 237-245.pdf134.8 kBAdobe PDFView/Open


Items in NOPR are protected by copyright, with all rights reserved, unless otherwise indicated.