TY - JOUR
T1 - ALMA Survey of Orion Planck Galactic Cold Clumps (ALMASOP)
T2 - Nested Morphological and Kinematic Structures of Outflows Revealed in SiO and CO Emission
AU - Liu, Chun Fan
AU - Shang, Hsien
AU - Johnstone, Doug
AU - Ai, Tsung Han
AU - Lee, Tsz Ming
AU - Krasnopolsky, Ruben
AU - Hirano, Naomi
AU - Dutta, Somnath
AU - Hsu, Shih Ying
AU - López-Vázquez, Jesús Alejandro
AU - Liu, Sheng Yuan
AU - Liu, Tie
AU - Tatematsu, Ken’ichi
AU - Zhang, Qizhou
AU - Rawlings, Mark G.
AU - Eden, David
AU - Ren, Zhiyuan
AU - Sanhueza, Patricio
AU - Kwon, Woojin
AU - Lee, Chang Won
AU - Kuan, Yi Jehng
AU - Bandopadhyay, Somdeb
AU - Vaisala, Miikka S.
AU - Lee, Chin Fei
AU - Das, Indrani
N1 - Publisher Copyright:
© 2025. The Author(s). Published by the American Astronomical Society.
PY - 2025/1/1
Y1 - 2025/1/1
N2 - The Atacama Large Millimeter/submillimeter Array Survey of Orion Planck Galactic Cold Clumps (ALMASOP) reveals complex nested morphological and kinematic features of molecular outflows through the CO (J = 2−1) and SiO (J = 5−4) emission. We characterize the jet and outflow kinematics of the ALMASOP sample in four representative sources (HOPS 10, 315, 358, and G203.21-11.20W2) through channel maps and position-velocity diagrams (PVDs) parallel and transverse to the outflow axes. The combined CO and SiO emission exhibits the coexistence of the conventional extremely high-velocity jets and shell-like low-velocity cavity walls and new features. More complex, nested bubble-like and filamentary structures in the images and channel maps, triangle-shaped regions near the base of the parallel PVDs, and regions composed of rhombus/oval shapes in the transverse PVDs are also evident. Such features find natural explanations within the bubble structure of the unified model of jet, wind, and ambient medium. The reverse shock cavity is revealed on the PVD base regions, and other features naturally arise within the dynamic postshock region of magnetic interaction. The finer nested shells observed within the compressed wind region reveal previously unnoticed shocked emission between the jet and the conventional large cavity walls. These pseudopulse-produced filamentary features connect to the jetlike knotty blobs, creating an impression of episodicity in mass ejection. SiO emission is enhanced downstream of the reverse shock boundary, with jetlike excitation conditions. Combined, these observed features reveal the extended structures induced by the magnetic interplay between a jet-bearing magnetized wide-angle wind and its ambient magnetized surrounding medium.
AB - The Atacama Large Millimeter/submillimeter Array Survey of Orion Planck Galactic Cold Clumps (ALMASOP) reveals complex nested morphological and kinematic features of molecular outflows through the CO (J = 2−1) and SiO (J = 5−4) emission. We characterize the jet and outflow kinematics of the ALMASOP sample in four representative sources (HOPS 10, 315, 358, and G203.21-11.20W2) through channel maps and position-velocity diagrams (PVDs) parallel and transverse to the outflow axes. The combined CO and SiO emission exhibits the coexistence of the conventional extremely high-velocity jets and shell-like low-velocity cavity walls and new features. More complex, nested bubble-like and filamentary structures in the images and channel maps, triangle-shaped regions near the base of the parallel PVDs, and regions composed of rhombus/oval shapes in the transverse PVDs are also evident. Such features find natural explanations within the bubble structure of the unified model of jet, wind, and ambient medium. The reverse shock cavity is revealed on the PVD base regions, and other features naturally arise within the dynamic postshock region of magnetic interaction. The finer nested shells observed within the compressed wind region reveal previously unnoticed shocked emission between the jet and the conventional large cavity walls. These pseudopulse-produced filamentary features connect to the jetlike knotty blobs, creating an impression of episodicity in mass ejection. SiO emission is enhanced downstream of the reverse shock boundary, with jetlike excitation conditions. Combined, these observed features reveal the extended structures induced by the magnetic interplay between a jet-bearing magnetized wide-angle wind and its ambient magnetized surrounding medium.
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U2 - 10.3847/1538-4357/ad9275
DO - 10.3847/1538-4357/ad9275
M3 - Article
AN - SCOPUS:85216117083
SN - 0004-637X
VL - 979
JO - Astrophysical Journal
JF - Astrophysical Journal
IS - 1
M1 - 17
ER -