Gravitational collapse of the OMC-1 region
- Autor(en)
- A. Hacar, J. Alves, Mario Tafalla, Javier R. Goicoechea
- Abstrakt
We have investigated the global dynamical state of the integral shaped filament in the Orion A cloud using new N2H+ (1-0) large-scale, IRAM 30m observations. Our analysis of its internal gas dynamics reveals the presence of accelerated motions towards the Orion Nebula Cluster, showing a characteristic blue-shifted profile centred at the position of the OMC-1 South region. The properties of these observed gas motions (profile, extension, and magnitude) are consistent with the expected accelerations for the gravitational collapse of the OMC-1 region and explain both the physical and kinematic structure of this cloud.
- Organisation(en)
- Institut für Astrophysik
- Externe Organisation(en)
- Leiden University, Observatorio Astronómico Nacional (OAN-IGN), Spanish National Research Council (CSIC)
- Journal
- Astronomy & Astrophysics
- Band
- 602
- Anzahl der Seiten
- 5
- ISSN
- 0004-6361
- DOI
- https://doi.org/10.1051/0004-6361/201730732
- Publikationsdatum
- 05-2017
- Peer-reviewed
- Ja
- ÖFOS 2012
- 103003 Astronomie, 103004 Astrophysik
- Schlagwörter
- ASJC Scopus Sachgebiete
- Astronomy and Astrophysics, Space and Planetary Science
- Link zum Portal
- https://ucrisportal.univie.ac.at/de/publications/0c7ac254-4ea5-4de4-9a06-32461f6e47c8