AYTY: A NEW LINE-LIST FOR HOT FORMALDEHYDE

Al-Refaie, Ahmed Faris

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https://hdl.handle.net/2142/79200 Copy

Description

Title

AYTY: A NEW LINE-LIST FOR HOT FORMALDEHYDE

Author(s)

Al-Refaie, Ahmed Faris

Contributor(s)

• Yachmenev, Andrey
• Tennyson, Jonathan
• Yurchenko, Sergei N.

Issue Date

22-Jun-15

Keyword(s)

Linelists

Abstract

begin{abstract} The ExoMol [1] project aims at providing spectroscopic data for key molecules that can be used to characterize the atmospheres of exoplanets and cool stars. Formaldehyde (H$_{2}$CO) is of growing importance in studying and modelling terrestrial atmospheric chemistry and dynamics. It also has relevance in astrophysical phenomena that include interstellar medium abundance, proto-planetary and cometary ice chemistry and masers from extra-galactic sources. However there gaps in currently available absolute intensities and a lack of higher rotational excitations that makes it unfeasible to accurately model high temperature systems such as hot Jupiters. Here we present textbf{AYTY} [2], a new line list for formaldehyde applicable to temperatures up to 1500 $K$. AYTY contains almost 10 million states reaching rotational excitations up to $J=70$ and over 10 billion transitions at up to 10 000 cm$^{-1}$. The line list was computed using the variational ro-vibrational solver TROVE with a refined textit{ab-initio} potential energy surface and dipole moment surface. end{abstract} begin{thebibliography}{1} bibitem{jt528} J.~Tennyson and S.~N. Yurchenko. newblock {em MNRAS}, 425:21--33, 2012. bibitem{jt597} A.~F. Al-Refaie, S.~N. Yurchenko, A.~Yachmenev, and J.~Tennyson. newblock {em MNRAS}, 2015. end{thebibliography}

Publisher

International Symposium on Molecular Spectroscopy

Type of Resource

text

Language

English

Permalink

http://hdl.handle.net/2142/79200

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