scholarly journals Evaluation of the Effective Temperature of Sunspots Using Molecular Parameters of AlF

2015 ◽  
Vol 2015 ◽  
pp. 1-7 ◽  
Author(s):  
K. Balachandrakumar ◽  
V. Raja ◽  
B. Karthikeyan ◽  
S. P. Bagare ◽  
N. Rajamanickam
Keyword(s):  
Potential Energy ◽  
Numerical Integration ◽  
Effective Temperature ◽  
Spectroscopic Analysis ◽  
Vibrational Temperature ◽  
Potential Energy Curves ◽  
Physical Conditions ◽  
Franck Condon ◽  
Suitable Potential ◽  
Numerical Integration Procedure

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 AlF. The evaluation of Franck-Condon (FC) factors andr-centroids is done by a numerical integration procedure using the suitable potential energy curves forC1Σ+-A1Σ+,b3Σ+-a3Πr,c3Σ-a3Πr, andf3Π-a3Πrband systems of AlF molecule. The intensity of various bands is discussed with the help of derived FC factors. The band degradation and the nature of potential energy curves are studied usingr-centroid values. The vibrational temperature of sunspot is estimated to be around 1220 ± 130 K which falls in the reported temperature range of cold sunspots.

scholarly journals Molecular parameters for the gas phase molecules SbO and SbP

2008 ◽  
Vol 73 (1) ◽  
pp. 65-71
Author(s):  
Sri Ramachandran ◽  
V. Raja ◽  
N. Rajamanickam
Keyword(s):  
Numerical Integration ◽  
Gas Phase ◽  
Transition Probabilities ◽  
Vibrational Transition ◽  
Molecular Parameters ◽  
Gas Phase Molecules ◽  
Condon Factors ◽  
Franck Condon ◽  
Suitable Potential ◽  
Numerical Integration Procedure

Franck-Condon factors and r-centroids, which are very closely related to relative vibrational transition probabilities, were evaluated by the numerical integration procedure for the bands of the A2?3/2 - X2?3/2, C2? - X2?3/2 and D2? - X2? systems of the isotopic SbO molecule and for the B1? - X1?+ system of the isotopic SbP molecule, using a suitable potential.

Franck-Condon Factors and R-Centroids for the Band System a1Π-X1Σ+ of the InH Molecule

1993 ◽  
Vol 58 (7) ◽  
pp. 1491-1494 ◽  
Author(s):  
Narayanan Rajamanickam ◽  
Thangamariappan Murali ◽  
Thangasamy Sakthivel ◽  
Manuel Fernandez Gomez ◽  
Juan Jesus Lopez Gonzalez
Keyword(s):  
Numerical Integration ◽  
Transition Probabilities ◽  
Band System ◽  
Vibrational Transition ◽  
Integration Procedure ◽  
Condon Factors ◽  
Franck Condon ◽  
Suitable Potential ◽  
Numerical Integration Procedure

The Franck-Condon factors (vibrational transition probabilities) and r-centroids have been evaluated by a numerical integration procedure for the bands of the a3Π1-X1Σ+ system of the InH molecule using a suitable potential.

Possible schemes of photoassociation processes in the KLi molecule with newly calculated potential energy curves

Open Physics ◽  
2013 ◽  
Vol 11 (9) ◽  
Author(s):  
Łukasz Miądowicz ◽  
Patryk Jasik ◽  
Józef Sienkiewicz
Keyword(s):  
Potential Energy ◽  
Electronic State ◽  
Dipole Moments ◽  
Potential Energy Curves ◽  
Ground Electronic State ◽  
Transition Dipole ◽  
Transition Dipole Moments ◽  
Condon Factors ◽  
Franck Condon ◽  
Calculated Potential Energy

AbstractWe present four promising schemes for photoassociative formation of KLi molecule in its ground electronic state. Analysis is based on newly calculated adiabatic potentials supported by transition dipole moments and Franck-Condon factors.

scholarly journals Dissociation Energies, r-Centroids and Franck-Condon Factors of H2 and N2+ Astrophysical Important Molecules

2021 ◽  
Vol 8 (S1-Feb) ◽  
pp. 111-125
Author(s):  
Lingaraju K ◽  
Narasimhulu G ◽  
Bala Krishnaiah ◽  
Rama Gopal Mohan K ◽  
Ramesha M S
Keyword(s):  
Potential Energy ◽  
Ground State ◽  
Analytical Method ◽  
Potential Energy Curves ◽  
Dissociation Energies ◽  
Approximate Analytical Method ◽  
Condon Factors ◽  
Franck Condon ◽  
Good Agreement

The potential energy curves for the ground state of diatomic H2 and N2+ molecules are constructed techniques using the five-parameter H-H function. The estimated dissociation energies are 4.61 ± 0.1 eV and 8.70 ± 0.20 eV for H2 and N2+ respectively. The estimated D0 values are in good agreement with literature values. The r-Centroids and Franck-Condon factors for the bands of C1∏u → X1Σ+g of H2 and A2∏u1 → 4Σu+ X of N2+ molecules have been determined. The Franck-Condon factors are evaluated by the approximate analytical method of Jarmain and Fraser. The absence of the bands in these systems is explained.

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