Search: onr:"swepub:oai:research.chalmers.se:dbe3562c-ffa1-4c1d-99b8-2191bad8a658" >
Discovery of methan...
Discovery of methanimine (CH 2 NH) megamasers toward compact obscured galaxy nuclei
-
- Gorski, Mark, 1989 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
-
- Aalto, Susanne, 1964 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
-
- Mangum, J. G. (author)
- National Radio Astronomy Observatory
-
show more...
-
- Momjian, E. (author)
- National Radio Astronomy Observatory Socorro
-
- Black, John H, 1949 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
-
- Falstad, Niklas, 1987 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
-
- Gullberg, Bitten, 1988 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
-
- König, Sabine, 1983 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
-
- Onishi, Kyoko, 1989 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
-
- Sato, Mamiko, 1982 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
-
Stanley, F. (author)
-
show less...
-
(creator_code:org_t)
- 2021-10-19
- 2021
- English.
-
In: Astronomy and Astrophysics. - : EDP Sciences. - 0004-6361 .- 1432-0746. ; 654
- Related links:
-
http://arxiv.org/pdf...
-
show more...
-
https://research.cha...
-
https://doi.org/10.1...
-
show less...
Abstract
Subject headings
Close
- We present the first search for the 5.29 GHz methanimine (CH2NH) 110 - 111 transition toward a sample of galaxy nuclei. We target seven galaxies that host compact obscured nuclei (CONs) with the Karl G. Jansky Very Large Array. These galaxies are characterized by Compton-thick cores. CH2NH emission is detected toward six CONs. The brightness temperatures measured toward Arp 220 indicate maser emission. Isotropic luminosities of the CH2NH transition, from all sources where it is detected, exceed 1 Lpdbl and thus may be considered megamasers. We also detect formaldehyde (H2CO) emission toward three CONs. The isotropic CH2NH luminosities are weakly correlated with the infrared luminosity of the host galaxy and strongly correlated with OH megamaser luminosities from the same galaxies. Non-local thermodynamic equilibrium radiative transfer models suggest that the maser is pumped by the intense millimeter-to-submillimeter Our study suggests that CH2NH megamasers are linked to the nuclear processes within 100 pc of the Compton-thick nucleus within CONs.
Subject headings
- NATURVETENSKAP -- Fysik -- Subatomär fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Subatomic Physics (hsv//eng)
- 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)
Keyword
- Radio lines: galaxies
- Galaxies: nuclei
- Galaxies: ISM
- Masers
Publication and Content Type
- art (subject category)
- ref (subject category)
Find in a library
To the university's database
- By the author/editor
-
Gorski, Mark, 19 ...
-
Aalto, Susanne, ...
-
Mangum, J. G.
-
Momjian, E.
-
Black, John H, 1 ...
-
Falstad, Niklas, ...
-
show more...
-
Gullberg, Bitten ...
-
König, Sabine, 1 ...
-
Onishi, Kyoko, 1 ...
-
Sato, Mamiko, 19 ...
-
Stanley, F.
-
show less...
- About the subject
-
- NATURAL SCIENCES
-
NATURAL SCIENCES
-
and Physical Science ...
-
and Subatomic Physic ...
-
- NATURAL SCIENCES
-
NATURAL SCIENCES
-
and Physical Science ...
-
and Astronomy Astrop ...
-
- NATURAL SCIENCES
-
NATURAL SCIENCES
-
and Physical Science ...
-
and Atom and Molecul ...
- Articles in the publication
-
Astronomy and As ...
- By the university
-
Chalmers University of Technology