Star Formation Rates and Ridge Structures in High-Mass Star-Forming Regions
Language
en
Communication dans un congrès
This item was published in
Astrophysics and Space Science Proceedings, 2014ASSP...36..385N - The Labyrinth of Star Formation, held in Greece, june 2012, Astrophysics and Space Science Proceedings, Volume 36. ISBN 978-3-319-03040-1. Springer International Publishing Switzerland, p. 385, 2014, 2014ASSP...36..385N - The Labyrinth of Star Formation, held in Greece, june 2012, Astrophysics and Space Science Proceedings, Volume 36. ISBN 978-3-319-03040-1. Springer International Publishing Switzerland, p. 385, 2014, 2014ASSP...36..385N - The Labyrinth of Star Formation, held in Chania - Greece, june 2012, Astrophysics and Space Science Proceedings, Volume 36. ISBN 978-3-319-03040-1. Springer International Publishing Switzerland, p. 385, 2014, 2012, Chania. 2014, vol. 36, p. 385
Springer
English Abstract
Molecular cloud complexes are structures of molecular gas with sizes up to 50-200 pc. The multi-wavelength data of Herschel allow us to construct column density maps. From these maps, we discover prominent filamentary ...Read more >
Molecular cloud complexes are structures of molecular gas with sizes up to 50-200 pc. The multi-wavelength data of Herschel allow us to construct column density maps. From these maps, we discover prominent filamentary structures (N H 2 > 1 0 23 _{H2} > 1{0}^{23} cm-2), which we call "ridges". We use the number of burgeoning YSOs detected in submm wavelengths with Herschel to measure the star formation activity in molecular cloud complexes and show a definite increase of star formation with the mass surface density as measured from Herschel column density images. The star formation rates (SFRs) measured for the molecular clouds W43 & G0035.39-00.33 are higher than the classical ones, such that we term these regions as "ministarbursts" - miniature models of starburst galaxies. The ridge structures show the strong, low-velocity, extended shock which may emerge from the swept-up gas caused by converging flows.Read less <
English Keywords
Physics
Origin
Hal imported