7 papers
Emergence of high-mass stars in complex fiber networks (EMERGE) VI. Turbulence dissipation and the formation of dense fibers
F. Bonanomi, A. Hacar, A. Socci +1
(Abridged) The turbulent cascade naturally generates a hierarchy of filaments within molecular clouds, with fibers suggested to be the first (tran-)sonic components formed out of i…
Accelerated gas flow along Ophiuchus B44 filament: Breaking Position-Position-Velocity degeneracy
J. Alves, C. Zucker, C. Lada +15
(Abridged) Stellar feedback from massive stars in the Upper-Sco has been proposed to have reshaped the gas in the nearby Ophiuchus complex. In this framework, feedback organizes th…
Low cosmic-ray ionisation at parsec scales in G035.39-00.33
Andrea Socci, Ashley Barnes, Jaime Pineda +11
Cosmic rays (CRs) regulate the chemical evolution of the gas and its coupling to the magnetic field in the densest and coldest regions of the interstellar medium (ISM). However, th…
The evolution of velocity dispersion in the Sco-Cen OB association
Josefa E. GroÃschedl, João Alves, Sebastian Ratzenböck +4
We study how the stellar velocity dispersion within the Scorpius-Centaurus OB association (Sco-Cen) has evolved over approximately 20 million years, from its formation to the prese…
Projection effects in star-forming regions: I. Nearest-neighbour statistics and observational biases
A. T. Barnes, K. Morii, J. E. Pineda +9
Stars form as molecular clouds fragment into networks of dense cores, filaments, and subclusters. The characteristic spacing of these cores is a key observable imprint of fragmenta…
Survey of Orion Disks with ALMA (SODA) III: Disks in wide binary systems in L1641 and L1647
Giulia Ricciardi, Sierk E. van Terwisga, Veronica Roccatagliata +3
Aims. The goal of this work is to comprehensively characterize the impact of stellar multiplicity on Class II disks in the L1641 and L1647 regions of Orion A (~1-3 Myr), part of th…