TY - JOUR
T1 - Multiwavelength investigation of extended green object G19.88-0.53
T2 - Revealing a protocluster
AU - Issac, Namitha
AU - Tej, Anandmayee
AU - Liu, Tie
AU - Varricatt, Watson
AU - Vig, Sarita
AU - Ishwara Chandra, C. H.
AU - Schultheis, Mathias
AU - Nandakumar, Govind
N1 - Publisher Copyright:
© 2020 The Author(s).
PY - 2020/10/1
Y1 - 2020/10/1
N2 - 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 UCH ii regions.
AB - 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 UCH ii regions.
KW - ISM: individual objects (G19.88-0.53)
KW - ISM: jets and outflows
KW - infrared: ISM
KW - infrared: stars
KW - stars: formation
UR - http://www.scopus.com/inward/record.url?scp=85097401767&partnerID=8YFLogxK
U2 - 10.1093/mnras/staa2301
DO - 10.1093/mnras/staa2301
M3 - Article
SN - 0035-8711
VL - 497
SP - 5454
EP - 5472
JO - Monthly Notices of the Royal Astronomical Society
JF - Monthly Notices of the Royal Astronomical Society
IS - 4
ER -