EPoS Contribution
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The Kinematics of Filaments and Their Role in High-Mass Star Formation
Cara Battersby Center for Astrophysics and Space Astronomy, University of Colorado, Boulder, USA | |
Filaments have gained a lot of attention in the last few years as their ubiquity in star-forming regions becomes universally acknowledged. Through systematic analysis of a large sample of filaments, we investigate their context, preponderance, and importance in high-mass star formation. We have selected a statistically significant, relatively unbiased sample of dense pre- to star-forming clumps and filaments. Through an analysis of their large-scale kinematics using the H2O southern Galactic Plane Survey (HOPS), we address quantitatively the prevalence of filaments in high-mass star formation and whether or not there is a global trend for converging flows along filaments. We identify a sample of "pole-on" filaments and discuss filament orientation as a function of Galactic location. We compare the large-scale filament kinematics with high-resolution ammonia data from the EVLA on a quiescent hub/filament group. | |
Collaborators: S. Longmore, ESO, Germany E. Schisano, INAF-IFSI, Italy J. Bally, CU-Boulder, USA A. Ginsburg, CU-Boulder, USA A. Walsh, JCU, Australia E. Bresert, ESO, Germany L. Testi, ESO, Germany J. Rathborne, CSIRO, Australia J. M. Jackson, BU, USA S. Molinari, INAF-IFSI, Italy |