PREPRINT
F3DA37B2-5BEF-47A9-83C8-77069DBE0C1D

Detection of interstellar cyanamide (NH2CN) towards the hot molecular core G10.47+0.03

Arijit Manna, Sabyasachi Pal
arXiv:2207.04877

Submitted on 8 July 2022

Abstract

In the interstellar medium, the amide-type molecules play an important role in the formation of the prebiotic molecules in the hot molecular cores or high-mass star formation regions. The complex amide-related molecule cyanamide (NH2CN) is known as one of the rare interstellar molecule which has played a major role in the formation of urea (NH2CONH2). In this article, we presented the detection of the emission lines of cyanamide (NH2CN) towards the hot molecular core G10.47+0.03 between the frequency range 158.49160.11 GHz using the Atacama Large Millimeter/submillimeter Array (ALMA) interferometric radio telescope. The estimated column density of the emission lines of NH2CN using the rotational diagram model was N(NH2CN) = (6.60±0.1)×1015 cm2 with rotational temperature (Trot) = 201.2±3.3 K. The fractional abundance of NH2CN with respect to H2 towards G10.47+0.03 was f(NH2CN) = 5.076×108. Additionally, we estimated the NH2CN/NH2CHO abundance ratio towards the G10.47+0.03 was 0.170, which was nearly similar with NH2CN/NH2CHO abundance ratio towards IRAS 162932422 B and Sgr B2 (M). We found that the observed abundance of NH2CN with respect to H2 towards G10.47+0.03 fairly agrees with the theoretical value predicted by Garrod (2013). We also discussed the possible formation and destruction pathways of NH2CN.

Preprint

Comment: 10 pages, 4 figures, Accepted for publication in Journal of Astrophysics and Astronomy

Subject: Astrophysics - Astrophysics of Galaxies

URL: https://arxiv.org/abs/2207.04877