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20242026
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astro-ph.GA2026

ALMA High-resolution Observation of the HH46/47 Outflow/disk/envelope System

Heyi Zhang, Yichen Zhang, Héctor G. Arce +6

We present ( au) resolution Atacama Large Millimeter/submillimeter Array (ALMA) observations of the HH 46/47 molecular outflow and its envelope-disk s…

astro-ph.GA2026

The Keplerian disk, envelope, and streamers surrounding an early O-type protostar in the Sagittarius C cloud of the Central Molecular Zone

Jixiang Weng, Xing Lu, Yu Cheng +22

Disk-mediated accretion is central to theories of massive star formation, setting the initial conditions for their evolution. Yet observations of Keplerian disks around early O-typ…

astro-ph.GA2025

Dense Molecular Ring-like structure in gaseous CO depletion region G34.74-0.12

Shuting Lin, Siyi Feng, Fengwei Xu +14

We report the discovery of a dense molecular ring-like structure in a dense (10 cm), cold (pc-scale CO depletion at a factor of 5), and young (10 year) star-forming…

astro-ph.GA2025

The ALMA Survey of 70 m Dark High-mass Clumps in Early Stages (ASHES). XII. Unanchored Forked Stream in the Propagating Path of a Protostellar Outflow

Shuting Lin, Siyi Feng, Patricio Sanhueza +14

Outflows are key indicators of ongoing star formation. We report the discovery of an unanchored forked stream within the propagating path of an extremely young protostellar outflow…

astro-ph.GA2024

Multiple chemical tracers finally unveil the intricate NGC\,1333 IRAS\,4A outflow system. FAUST XVI

Layal Chahine, Cecilia Ceccarelli, Marta De Simone +54

The exploration of outflows in protobinary systems presents a challenging yet crucial endeavour, offering valuable insights into the dynamic interplay between protostars and their…