ROTATIONAL SPECTROSCOPY OF VIBRATIONALLY EXCITED N2H+ and N2D+ UP TO 2 THZ

Yu, Shanshan

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https://hdl.handle.net/2142/79155 Copy

Description

Title

ROTATIONAL SPECTROSCOPY OF VIBRATIONALLY EXCITED N2H+ and N2D+ UP TO 2 THZ

Author(s)

Yu, Shanshan

Contributor(s)

• Amano, Takayoshi
• Elliott, Ben
• Daly, Adam M.
• Crawford, Timothy J.
• Drouin, Brian
• Pearson, John

Issue Date

25-Jun-15

Keyword(s)

Astronomy

Abstract

Terahertz absorption spectroscopy was employed to extend the measurements on the pure rotational transitions of N$_2$H$^+$, N$_2$D$^+$ and their $^{15}$N-containing isotopologues in the ground state and first excited vibrational states for the three fundamental vibrational modes. In total 88 new pure rotational transitions were observed in the range of 0.7--2.0~THz. The observed transition frequencies were fit to experimental accuracy, and the improved molecular parameters were obtained. The new measurements and predictions will support the analysis of high-resolution astronomical observations made with facilities such as SOFIA and ALMA where laboratory rest frequencies with uncertainties of 1 MHz or smaller are required for proper analysis of velocity resolved astrophysical components.

Publisher

International Symposium on Molecular Spectroscopy

Type of Resource

text

Language

English

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http://hdl.handle.net/2142/79155

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