Multiwavelength investigation of extended green object G19.88-0.53: Revealing a protocluster

Autor:	Issac, Namitha, Tej, Anandmayee, Liu, Tie, Varricatt, Watson, Vig, Sarita, H., Ishwara Chandra C., Schultheis, Mathias, Nandakumar, Govind
Rok vydání:	2020
Předmět:	Astrophysics - Solar and Stellar Astrophysics Astrophysics - Astrophysics of Galaxies
Druh dokumentu:	Working Paper
DOI:	10.1093/mnras/staa2301
Popis:	A multiwavelength analysis of star formation associated with the extended green object, G19.88-0.53 is presented in this paper. With multiple detected radio and millimetre components, G19.88-0.53 unveils as harbouring a protocluster rather than a single massive young stellar object. We detect an ionized thermal jet using the upgraded Giant Meterwave Radio Telescope, India, which is found to be associated with a massive, dense and hot ALMA 2.7 mm core driving a bipolar CO outflow. Near-infrared spectroscopy with UKIRT-UIST shows the presence of multiple shock-excited H2 lines concurrent with the nature of this region. Detailed investigation of the gas kinematics using ALMA data reveals G19.88-0.53 as an active protocluster with high-mass star forming components spanning a wide evolutionary spectrum from hot cores in accretion phase to cores driving multiple outflows to possible UCHII regions. Comment: 20 pages, 16 figures, Accepted for publication in the Main Journal of MNRAS
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2007.15186 Zobrazit plný text záznamu View this record from Arxiv