Astronomical Applications Of New Line Lists For Cn, C2 And Their Isotopologues

Bernath, Peter F.

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https://hdl.handle.net/2142/51097 Copy

Description

Title

Astronomical Applications Of New Line Lists For Cn, C2 And Their Isotopologues

Author(s)

Bernath, Peter F.

Contributor(s)

• Ram, Ram
• Brooke, James S.A.
• Sneden, Chris

Issue Date

2014-06-17

Keyword(s)

Astronomy

Abstract

For cool stellar and substellar objects, atomic lines weaken, and detailed elemental and isotopic abundances are often derived from molecular absorption features. We have embarked on a project to provide molecular line lists by combining experimental observations for line positions with ab initio calculations for line strengths. So far we have results for MgH (A-X and B-X transitions)\footnote{E. GharibNezhad, A. Shayesteh and P. F. Bernath, Mon. Notices R. Astro. Soc. 432, 2043-2047 (2013)}\footnote{K. H. Hinkle, L. Wallace, R. S. Ram, P. F. Bernath, C. Sneden and S. Lucatello, Astrophys. J. Suppl. 207, 26 (7pp) (2013)}, C$_{2}$ (Swan system)\footnote{J. S. A. Brooke, P. F. Bernath, T. W. Schmidt and G. B. Bacskay, J. Quant. Spectrosc. Rad. Trans. 124, 11-20 (2013)}\footnote{R. S. Ram, J. S. A. Brooke, P. F. Bernath, C. Sneden and S. Lucatello, Astrophys. J. Suppl. 211, 5 (7pp) (2014)}, CN (red and violet systems)\footnote{J. S. A. Brooke, R. S. Ram, C. M. Western, G. Li, D. W. Schwenke and P. F. Bernath, Astrophys. J. Suppl. 210, 23 (15pp) (2014)}, CP (A-X transition)\footnote{R. S. Ram, J. S. A. Brooke, C.M. Western and P. F. Bernath, J. Quant. Spectrosc. Rad. Transfer (in press)}, NH (vibration-rotation bands) and OH (Meinel system)\footnote{J. S. A. Brooke et al., this meeting, P301}. This talk will briefly describe the new line lists for the Swan system (d$^{3}\Pi$-a$^{3}\Pi$) of C$_{2}$ and $^{12}$C$^{13}$C, and the red (A$^{2}\Pi$-X$^{2}\Sigma^{+}$) and violet (B$^{2}\Sigma^{+}$-X$^{2}\Sigma^{+}$) systems of CN, $^{13}$CN and C$^{15}$N. Applications to the spectra of carbon-enhanced metal-poor stars, the K-giant Arcturus, the metal-rich open cluster NGC 6791, the Sun and comets will be presented.

Publisher

International Symposium on Molecular Spectroscopy

Type of Resource

text

Language

English

Permalink

http://hdl.handle.net/2142/51097

DOI

https://doi.org/10.15278/isms.2014.TA06

Copyright and License Information

Copyright 2014 by the authors. Licensed under a Creative Commons Attribution 4.0 International License. http://creativecommons.org/licenses/by/4.0/

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