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.
@article{arxiv.2211.14063,
title = {H$^{13}$CN-HN$^{13}$C intensity ratio as a temperature indicator of interstellar clouds},
author = {A. G. Pazukhin and I. I. Zinchenko and E. A. Trofimova and C. Henkel},
journal= {arXiv preprint arXiv:2211.14063},
year = {2023}
}
Comments
16 pages, 7 figures, 2 tables, Accepted for publication in Astronomy Reports (2022)