Search: onr:"swepub:oai:research.chalmers.se:06d3e421-f5f5-421d-94b5-50a990bffafa" >
Fast, Collimated Ou...
Fast, Collimated Outflow in the Western Nucleus of Arp 220
-
- Barcos-Munoz, Loreto (author)
- Atacama Large Millimeter-submillimeter Array (ALMA),National Radio Astronomy Observatory
-
- Aalto, Susanne, 1964 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
-
- Thompson, Todd A. (author)
- Ohio State University
-
show more...
-
- Sakamoto, K. (author)
- Academia Sinica Taiwan
-
- Martín, Sergio (author)
- Atacama Large Millimeter-submillimeter Array (ALMA),European Southern Observatory Santiago
-
- Leroy, Adam K. (author)
- Ohio State University
-
- Privon, G. (author)
- University of Florida,Pontificia Universidad Catolica de Chile
-
- Evans, A. S. (author)
- National Radio Astronomy Observatory,University of Virginia
-
- Kepley, Amanda (author)
- National Radio Astronomy Observatory
-
show less...
-
(creator_code:org_t)
- 2018-02-02
- 2018
- English.
-
In: Astrophysical Journal Letters. - : American Astronomical Society. - 2041-8213 .- 2041-8205. ; 853:2
- Related links:
-
http://arxiv.org/pdf...
-
show more...
-
https://doi.org/10.3...
-
https://research.cha...
-
show less...
Abstract
Subject headings
Close
- We present the first spatially and spectrally resolved image of the molecular outflow in the western nucleus of Arp 220. The outflow, seen in HCN (1-0) by the Atacama Large millimeter/sub-millimeter Array, is compact and collimated, with an extension ≲120 pc. Bipolar morphology emerges along the minor axis of the disk, with redshifted and blueshifted components reaching a maximum inclination-corrected velocity of km s -1 . The outflow is also seen in CO and continuum emission, the latter implying that it carries significant dust. We estimate a total mass in the outflow of , a dynamical time of ∼10 5 yr, and mass outflow rates of yr -1 and yr -1 for the northern and southern lobes, respectively. Possible driving mechanisms include supernovae energy and momentum transfer, radiation pressure feedback, and a central AGN. The latter could explain the collimated morphology of the HCN outflow; however, we need more complex theoretical models, including contributions from supernovae and AGN, to pinpoint the driving mechanism of this outflow.
Subject headings
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
- NATURVETENSKAP -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)
- NATURVETENSKAP -- Kemi -- Teoretisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Theoretical Chemistry (hsv//eng)
Keyword
- galaxies: starburst
- galaxies: active
- galaxies: interactions
- galaxies: individual (Arp220)
Publication and Content Type
- art (subject category)
- ref (subject category)
Find in a library
To the university's database
- By the author/editor
-
Barcos-Munoz, Lo ...
-
Aalto, Susanne, ...
-
Thompson, Todd A ...
-
Sakamoto, K.
-
Martín, Sergio
-
Leroy, Adam K.
-
show more...
-
Privon, G.
-
Evans, A. S.
-
Kepley, Amanda
-
show less...
- About the subject
-
- NATURAL SCIENCES
-
NATURAL SCIENCES
-
and Physical Science ...
-
and Astronomy Astrop ...
-
- NATURAL SCIENCES
-
NATURAL SCIENCES
-
and Physical Science ...
-
and Atom and Molecul ...
-
- NATURAL SCIENCES
-
NATURAL SCIENCES
-
and Chemical Science ...
-
and Theoretical Chem ...
- Articles in the publication
-
Astrophysical Jo ...
- By the university
-
Chalmers University of Technology