Expansion Of The Hitemp Database

Hargreaves, Robert J.

Permalink

https://hdl.handle.net/2142/111207 Copy

Description

Title

Expansion Of The Hitemp Database

Author(s)

Hargreaves, Robert J.

Contributor(s)

• Rothman, Laurence S.
• Gordon, Iouli E.
• Conway, Eamon K

Issue Date

2021-06-23

Keyword(s)

Linelists

Abstract

The high-temperature molecular spectroscopic database, HITEMP [1], aims to provide line lists for use in the modeling of high-temperature environments. Usage can range from the sensing of specific transitions in combustion processes to simulating the broadband opacities of exoplanet atmospheres. One challenge has been to balance the substantial quantity of transitions necessary for high-temperature applications, while remaining practical for use in line-by-line radiative transfer calculations. For methane [2], a method was devised to compress the very weak intensities of the underlying \emph{ab initio} transitions into ``effective'' lines, which can be used in regular radiative transfer calculations.\newline \newline The HITEMP database currently constitutes line lists for eight molecules (H$_2$O, CO$_2$, N$_2$O, CO, CH$_4$, NO, NO$_2$, OH) and this talk will summarize the recent updates and additions to the HITEMP2010 data [2,3,4], including the new line list for water vapor [5]. A brief discussion of the remaining updates and proposed additions will also be included.\newline \newline [1] L.S. Rothman, et al. (2010), \emph{JQSRT} \textbf{111}, 2139-2150\newline [2] R.J. Hargreaves, et al. (2020), \emph{ApJS} \textbf{247}, A55\newline [3] R.J. Hargreaves, et al. (2019), \emph{JQSRT} \textbf{232}, 35-53\newline [4] G. Li, et al. (2015), \emph{ApJS} \textbf{216}, A15\newline [5] E.K. Conway, et al. (2021), \emph{JQSRT}, in prep\newline

Publisher

International Symposium on Molecular Spectroscopy

Type of Resource

Text

Language

eng

Permalink

http://hdl.handle.net/2142/111207

DOI

10.15278/isms.2021.WF02

Owning Collections