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20232026
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astro-ph.GA2026

ALOHA IRDCs Molecular Line Follow-up: I. Gas properties and kinematics

Jinjin Xie, Yaoting Yan, Zhiyuan Ren +109

Infrared Dark Clouds are ideal sites for investigating the initial conditions of massive star and cluster formation. The A Lei Of the Habitat and Assembly of Infrared Dark Clouds (…

astro-ph.GA2026

An inverted infall profile for the collapse of the massive star-forming IRDC SDC335.579-0.292

Jinjin Xie, Gary A. Fuller, Di Li +8

There is increasing evidence for global collapse of clumps over parsec-scales in massive star formation regions. Such collapse may result in characteristic molecular line emission…

astro-ph.GA2025

Transient protostellar cores in high mass star forming regions revealed by time-resolved synthetic imaging of dust emission

Camilo H. Peñaloza, Rowan J. Smith, Claudia J. Cyganowski +4

The connection between dense gas cores and their infant protostars is key to understanding how stars form in molecular clouds. In this paper we investigate the properties, persiste…

astro-ph.GA2025

The Role of Magnetic Fields in the Formation of High-Mass Star-Forming Cores

Katerina Sophia Klos, Ian A. Bonnell, Rowan J. Smith

Magnetic fields are often invoked as playing a primary role in star formation and in the formation of high-mass stars. We investigate the effect of magnetic fields on the formation…

astro-ph.GA2023

ALMA observations of the Extended Green Object G19.010.03: II. A massive protostar with typical chemical abundances surrounded by four low-mass prestellar core candidates

Gwenllian M. Williams, Claudia J. Cyganowski, Crystal L. Brogan +3

We present a study of the physical and chemical properties of the Extended Green Object (EGO) G19.010.03 using sub-arcsecond angular resolution Atacama Large Millimeter/submilli…