ALMA observations of the Orion Integral Filament: evidence for fibers in a massive cloud
- Author(s)
- Alvaro Hacar, Mario Tafalla, Jan Forbrich, Josefa Grossschedl
- Abstract
The connection between low- and high-mass filaments is a matter of strong debate. In order to bridge these two filamentary regimes, we have investigated the internal structure of the Integral Filament in Orion using ALMA observations of the N2H+ (1-0) emission line in Band 3 in combination with previous single-dish data. Our ALMA mosaics, the largest of its kind carried out so-far in local clouds, reveal the presence of multiple sonic-like fibers inside this massive filament. In combination with the identification of fibers in regions such as Taurus, Musca, and Perseus, the first unambiguous detection of fibers in Orion highlights the importance of these gas substructures as the fundamental building blocks of both low- and high-mass filaments.
- Organisation(s)
- Department of Astrophysics
- External organisation(s)
- Leiden University, Observatorio Astronómico Nacional (OAN-IGN), University of Hertfordshire
- Journal
- Proceedings of the International Astronomical Union
- Volume
- 345
- Pages
- 51-55
- No. of pages
- 5
- ISSN
- 1743-9213
- DOI
- https://doi.org/10.1017/S1743921319002102
- Publication date
- 2020
- Peer reviewed
- Yes
- Austrian Fields of Science 2012
- 103004 Astrophysics
- Keywords
- ASJC Scopus subject areas
- Public Health, Environmental and Occupational Health, Astronomy and Astrophysics, Nutrition and Dietetics, Medicine (miscellaneous), Space and Planetary Science
- Portal url
- https://ucrisportal.univie.ac.at/en/publications/186bdb5b-239c-4666-9972-bd071025679a