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Radio continuum and...
Radio continuum and X-ray emission from the most extreme far-IR-excess galaxy NGC 1377: An extremely obscured AGN revealed
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- Costagliola, Francesco, 1981 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Herrero-Illana, R. (författare)
- Instituto de Astrofisica de Andalucía (IAA),Institute of Astrophysics of Andalusia (IAA)
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- Lohfink, A. (författare)
- University Of Cambridge
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- Pérez-Torres, M.A. (författare)
- Universidad de Zaragoza,University of Zaragoza,Instituto de Astrofisica de Andalucía (IAA),Institute of Astrophysics of Andalusia (IAA)
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- Aalto, Susanne, 1964 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Muller, Sebastien, 1976 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Alberdi, Antxon (författare)
- Instituto de Astrofisica de Andalucía (IAA),Institute of Astrophysics of Andalusia (IAA)
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(creator_code:org_t)
- 2016-10-20
- 2016
- Engelska.
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Ingår i: Astronomy and Astrophysics. - : EDP Sciences. - 0004-6361 .- 1432-0746. ; 594, s. A114-
- Relaterad länk:
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http://publications.... (primary) (free)
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https://www.aanda.or...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Context. Galaxies which strongly deviate from the radio-far infrared (FIR) correlation are of great importance for studies of galaxy evolution as they may be tracing early, short-lived stages of starbursts and active galactic nuclei (AGNs). The most extreme FIR-excess galaxy NGC 1377 has long been interpreted as a young dusty starburst, but millimeter observations of CO lines revealed a powerful collimated molecular outflow which cannot be explained by star formation alone. Aims. This paper aims to determine the nature of the energy source in the nucleus of NGC 1377 and to study the driving mechanism of the collimated CO outflow. Methods. We present new radio observations of NGC 1377 at 1.5 and 10 GHz obtained with the Jansky Very Large Array (JVLA) and Chandra X-ray observations. The observations are compared to synthetic starburst models to constrain the properties of the central energy source. Results. We obtained the first detection of the cm radio continuum and X-ray emission in NGC 1377. We found that the radio emission is distributed in two components, one on the nucleus and another offset by 4?5 to the south-west. We confirm the extreme FIR-excess of the galaxy, with a qFIR ? 4.2, which deviates by more than 7? from the radio-FIR correlation. Soft X-ray emission is detected on the off-nucleus component. From the radio emission we estimated for a young (
Ämnesord
- NATURVETENSKAP -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)
Nyckelord
- Galaxies: starburst
- Radio continuum: galaxies
- Galaxies: jets
- X-rays: galaxies
- Galaxies: individual: NGC 1377
- Galaxies: active
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
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