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

# Detection of interstellar cyanamide (NH${}_{2}$CN) 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 (NH${}_{2}$CN) is known as one of the rare interstellar molecule which has played a major role in the formation of urea (NH${}_{2}$CONH${}_{2}$). In this article, we presented the detection of the emission lines of cyanamide (NH${}_{2}$CN) towards the hot molecular core G10.47+0.03 between the frequency range 158.49$-$160.11 GHz using the Atacama Large Millimeter/submillimeter Array (ALMA) interferometric radio telescope. The estimated column density of the emission lines of NH${}_{2}$CN using the rotational diagram model was $N$(NH${}_{2}$CN) = (6.60$±$0.1)$×$10${}^{15}$ cm${}^{-2}$ with rotational temperature (${T}_{rot}$) = 201.2$±$3.3 K. The fractional abundance of NH${}_{2}$CN with respect to H${}_{2}$ towards G10.47+0.03 was $f$(NH${}_{2}$CN) = 5.076$×$10${}^{-8}$. Additionally, we estimated the NH${}_{2}$CN/NH${}_{2}$CHO abundance ratio towards the G10.47+0.03 was 0.170, which was nearly similar with NH${}_{2}$CN/NH${}_{2}$CHO abundance ratio towards IRAS 16293$-$2422 B and Sgr B2 (M). We found that the observed abundance of NH${}_{2}$CN with respect to H${}_{2}$ 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 NH${}_{2}$CN.

## Preprint

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

Subject: Astrophysics - Astrophysics of Galaxies