G133. 50+ 9.01: a likely cloud–cloud collision complex triggering the formation of filaments, cores, and a stellar cluster

N Issac, A Tej, T Liu, Y Wu - Monthly Notices of the Royal …, 2020 - academic.oup.com
N Issac, A Tej, T Liu, Y Wu
Monthly Notices of the Royal Astronomical Society, 2020academic.oup.com
We present compelling observational evidence of G133. 50+ 9.01 being a bona fide cloud–
cloud collision candidate with signatures of induced filament, core, and cluster formation.
The CO molecular line observations reveal that the G133. 50+ 9.01 complex is made of two
colliding molecular clouds with systemic velocities, and. The intersection of the clouds is
characterized by broad bridging features characteristic of collision. The morphology of the
shocked layer at the interaction front resembles an arc-like structure with enhanced …
Abstract
We present compelling observational evidence of G133.50+9.01 being a bona fide cloud–cloud collision candidate with signatures of induced filament, core, and cluster formation. The CO molecular line observations reveal that the G133.50+9.01 complex is made of two colliding molecular clouds with systemic velocities, and . The intersection of the clouds is characterized by broad bridging features characteristic of collision. The morphology of the shocked layer at the interaction front resembles an arc-like structure with enhanced excitation temperature and H2 column density. A complex network of filaments is detected in the Submillimeter Common-User Bolometer Array 2 850  image with 14 embedded dense cores, all well correlated spatially with the shocked layer. A stellar cluster revealed through an overdensity of identified Classes I and II young stellar objects is found located along the arc in the intersection region corroborating with a likely collision induced origin.
Oxford University Press