- Press Release
- February 2, 2023
H13CN-HN13C Intensity Ratio As A Temperature Indicator Of Interstellar Clouds
With the 30-m IRAM radio telescope, we observed several massive star forming regions at wavelengths of 3-4 and 2 mm.
The temperature of the gas in the sources was estimated from the lines of CH3CCH and from the transitions of the NH3 molecule obtained during observations at the 100-m radio telescope in Effelsberg. As a result, a correlation between the integrated intensity ratios of the J=1−0 transitions of H13CN and HN13C and the kinetic temperature has been obtained.
The obtained results allow us to propose the use of the intensity ratio H13CN-HN13C as a possible temperature indicator of interstellar clouds. We also compared the obtained estimates of the kinetic temperature with the dust temperature Tdust. As a result, no significant correlation was found.
A. G. Pazukhin, I. I. Zinchenko, E. A. Trofimova, C. Henkel
Comments: 16 pages, 7 figures, 2 tables, Accepted for publication in Astronomy Reports (2022)
Subjects: Astrophysics of Galaxies (astro-ph.GA)
Cite as: arXiv:2211.14063 [astro-ph.GA] (or arXiv:2211.14063v1 [astro-ph.GA] for this version)
From: Andrey Pazukhin
[v1] Fri, 25 Nov 2022 12:38:17 UTC (795 KB)