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Nitric oxide and other molecules: molecular modeling and low-frequency exploration using the Murchison Widefield Array

Citation

Tremblay, CD and Gray, MD and Hurley-Walker, N and Green, JA and Dawson, JR and Dickey, JM and Jones, PA and Tingay, SJ and Wong, OI, Nitric oxide and other molecules: molecular modeling and low-frequency exploration using the Murchison Widefield Array, Astrophysical Journal, 905, (1) pp. 1-8. ISSN 0004-637X (2020) [Refereed Article]

DOI: doi:10.3847/1538-4357/abc33a

Abstract

We present new molecular modeling for (NO)-N-14 and (NO)-N-15 and a deep, blind molecular line survey at low radio frequencies (99-129 MHz). This survey is the third in a series completed with the Murchison Widefield Array (MWA), but in comparison with the previous surveys, uses 4 times more data (17 hr versus 4 hr) and is 3 times better in angular resolution (1 ' versus 3 '). The new molecular modeling for nitric oxide and its main isotopologue has seven transitions within the MWA frequency band (although we also present the higher-frequency transitions). Although we did not detect any new molecular lines at a limit of 0.21 Jy beam(-1), this work is an important step in understanding the data processing challenges for the future Square Kilometre Array and places solid limits on what is expected in the future of low-frequency surveys. The modeling can be utilized for future searches of nitric oxide.

Item Details

Item Type:Refereed Article
Keywords:Astrochemistry, molecular spectroscopy, radio astronomy, surveys, interstellar medium, interstellar molecules
Research Division:Physical Sciences
Research Group:Astronomical sciences
Research Field:Galactic astronomy
Objective Division:Expanding Knowledge
Objective Group:Expanding knowledge
Objective Field:Expanding knowledge in the physical sciences
UTAS Author:Dawson, JR (Dr Joanne Dawson)
UTAS Author:Dickey, JM (Professor John Dickey)
ID Code:152804
Year Published:2020
Web of Science® Times Cited:2
Deposited By:Mathematics
Deposited On:2022-08-24
Last Modified:2022-08-24
Downloads:0

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