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astro-ph.GA2025

The Green Bank Ammonia Survey: Data Release 2

Jaime E. Pineda, Rachel K. Friesen, Erik Rosolowsky +22

We present an overview of the final data release (DR2) from the Green Bank Ammonia Survey (GAS). GAS is a Large Program at the Green Bank Telescope to map all Gould Belt star-formi…

astro-ph.GA2025

The JCMT Gould Belt Survey: First results from the Corona Australis molecular cloud and evidence of variable dust emissivity indices in the Coronet region

Kate Pattle, David Bresnahan, Derek Ward-Thompson +47

We present 450m and 850m James Clerk Maxwell Telescope (JCMT) observations of the Corona Australis (CrA) molecular cloud taken as part of the JCMT Gould Belt Legacy Survey…

astro-ph.GA2024

Filament Accretion and Fragmentation in the Perseus Molecular Cloud

Michael Chun-Yuan Chen, James Di Francesco, Rachel K. Friesen +6

Observations suggest that filaments in molecular clouds can grow by mass accretion while forming cores via fragmentation. Here we present one of the first large sample studies of f…

astro-ph.GA2024

Probing the Physics of Star-Formation (ProPStar) III. No evidence for dissipation of turbulence down to 20 mpc (4 000 au) scale

Jaime E. Pineda, Juan D. Soler, Stella Offner +14

Context. Turbulence is a key component of molecular cloud structure. It is usually described by a cascade of energy down to the dissipation scale. The power spectrum for subsonic i…

astro-ph.GA2024

Relative Alignments Between Magnetic Fields, Velocity Gradients, and Dust Emission Gradients in NGC 1333

Michael Chun-Yuan Chen, Laura M. Fissel, Sarah I. Sadavoy +23

Magnetic fields play an important role in shaping and regulating star formation in molecular clouds. Here, we present one of the first studies examining the relative orientations b…