A Detailed Investigation of Certain Electronic Transitions of the BaD Molecule for Astrophysical Applications

G. Shanmugapriya; B. Karthikeyan; N. Rajamanickam; N. El-Kork

doi:10.1007/s10812-019-00795-4

A Detailed Investigation of Certain Electronic Transitions of the BaD Molecule for Astrophysical Applications

G. Shanmugapriya, B. Karthikeyan, N. Rajamanickam, N. El-Kork

Physics

Research output: Contribution to journal › Article › peer-review

Abstract

The spectroscopic and ro-vibrational constants, FCFs and r-centroids have been evaluated in the present study for A ² Π _1/2 –X ² Σ, A ² Π _3/2 –X ² Σ, B ² Σ–X ² Σ, E ² Π _1/2 –X ² Σ, E ² Π _3/2 –X ² Σ, F ² Σ–X ² Σ, and L ² Π–X ² Σ band systems of the barium deuteride (BaD) molecule by adopting a reliable numerical integration procedure. The physical and astrophysical significances of the evaluated FCFs and r-centroids are discussed for all these band systems. The effect of vibration rotation interaction (VRI) on FCFs for the bands of the chosen band systems of BaD molecule is also studied. It is found from the results that the effect of VRI on FCFs is not so significant for the rotational quantum number (J) up to J = 50. For higher values of J like J = 100, there is a slight change in the value of FCFs due to the VRI effect.

Original language	British English
Pages (from-to)	147-153
Number of pages	7
Journal	Journal of Applied Spectroscopy
Volume	86
Issue number	1
DOIs	https://doi.org/10.1007/s10812-019-00795-4
State	Published - 15 Mar 2019

Keywords

BaD molecule
Celestial environment
Franck–Condon factors
r-centroids
VRI effect

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title = "A Detailed Investigation of Certain Electronic Transitions of the BaD Molecule for Astrophysical Applications",

abstract = " The spectroscopic and ro-vibrational constants, FCFs and r-centroids have been evaluated in the present study for A 2 Π 1/2 –X 2 Σ, A 2 Π 3/2 –X 2 Σ, B 2 Σ–X 2 Σ, E 2 Π 1/2 –X 2 Σ, E 2 Π 3/2 –X 2 Σ, F 2 Σ–X 2 Σ, and L 2 Π–X 2 Σ band systems of the barium deuteride (BaD) molecule by adopting a reliable numerical integration procedure. The physical and astrophysical significances of the evaluated FCFs and r-centroids are discussed for all these band systems. The effect of vibration rotation interaction (VRI) on FCFs for the bands of the chosen band systems of BaD molecule is also studied. It is found from the results that the effect of VRI on FCFs is not so significant for the rotational quantum number (J) up to J = 50. For higher values of J like J = 100, there is a slight change in the value of FCFs due to the VRI effect.",

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author = "G. Shanmugapriya and B. Karthikeyan and N. Rajamanickam and N. El-Kork",

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AU - El-Kork, N.

PY - 2019/3/15

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N2 - The spectroscopic and ro-vibrational constants, FCFs and r-centroids have been evaluated in the present study for A 2 Π 1/2 –X 2 Σ, A 2 Π 3/2 –X 2 Σ, B 2 Σ–X 2 Σ, E 2 Π 1/2 –X 2 Σ, E 2 Π 3/2 –X 2 Σ, F 2 Σ–X 2 Σ, and L 2 Π–X 2 Σ band systems of the barium deuteride (BaD) molecule by adopting a reliable numerical integration procedure. The physical and astrophysical significances of the evaluated FCFs and r-centroids are discussed for all these band systems. The effect of vibration rotation interaction (VRI) on FCFs for the bands of the chosen band systems of BaD molecule is also studied. It is found from the results that the effect of VRI on FCFs is not so significant for the rotational quantum number (J) up to J = 50. For higher values of J like J = 100, there is a slight change in the value of FCFs due to the VRI effect.

AB - The spectroscopic and ro-vibrational constants, FCFs and r-centroids have been evaluated in the present study for A 2 Π 1/2 –X 2 Σ, A 2 Π 3/2 –X 2 Σ, B 2 Σ–X 2 Σ, E 2 Π 1/2 –X 2 Σ, E 2 Π 3/2 –X 2 Σ, F 2 Σ–X 2 Σ, and L 2 Π–X 2 Σ band systems of the barium deuteride (BaD) molecule by adopting a reliable numerical integration procedure. The physical and astrophysical significances of the evaluated FCFs and r-centroids are discussed for all these band systems. The effect of vibration rotation interaction (VRI) on FCFs for the bands of the chosen band systems of BaD molecule is also studied. It is found from the results that the effect of VRI on FCFs is not so significant for the rotational quantum number (J) up to J = 50. For higher values of J like J = 100, there is a slight change in the value of FCFs due to the VRI effect.

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A Detailed Investigation of Certain Electronic Transitions of the BaD Molecule for Astrophysical Applications

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Keywords

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