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WISDOM project - VI...
WISDOM project - VIII. Multiscale feedback cycles in the brightest cluster galaxy NGC 0708
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- North, (författare)
- Cardiff University
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- Davis, Timothy A. (författare)
- Cardiff University
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- Bureau, Martin (författare)
- University Of Oxford,Yonsei University
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- Gaspari, Massimo (författare)
- Istituto nazionale di astrofisica (INAF),Princeton University
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- Cappellari, Michele (författare)
- University Of Oxford
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- Iguchi, Satoru (författare)
- The Graduate University for Advanced Studies (SOKENDAI),National Institutes of Natural Sciences (NINS)
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- Liu, Lijie (författare)
- University Of Oxford
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- Onishi, Kyoko, 1989 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology,Ehime University
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Sarzi, Marc (författare)
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- Smith, Mark D. (författare)
- University Of Oxford
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- Williams, Thomas G. (författare)
- Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)
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(creator_code:org_t)
- 2021-03-18
- 2021
- Engelska.
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Ingår i: Monthly Notices of the Royal Astronomical Society. - : Oxford University Press (OUP). - 0035-8711 .- 1365-2966. ; 503:4, s. 5179-5192
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Abstract
Ämnesord
Stäng
- We present high-resolution (synthesized beam size 0 ''.088 x 0 ''.083 or 25 x 23 pc(2)) Atacama Large Millimetre/submillimetre Array (CO)-C-12(2-1) line and 236 GHz continuum observations, as well as 5 GHz enhanced Multi-Element Radio Linked Interferometer Network (e-MERLIN) continuum observations, of NGC 0708; the brightest galaxy in the low-mass galaxy cluster Abell 262. The line observations reveal a turbulent, rotating disc of molecular gas in the core of the galaxy, and a high-velocity, blueshifted feature approximate to 0.'' 4(approximate to 113pc) from its centre. The submillimetre continuum emission peaks at the nucleus, but extends towards this anomalous CO emission feature. No corresponding elongation is found on the same spatial scales at 5 GHz with e-MERLIN. We discuss potential causes for the anomalous blueshifted emission detected in this source, and conclude that it is most likely to be a low-mass in-falling filament of material condensing from the hot intracluster medium via chaotic cold accretion, but it is also possible that it is a jet-driven molecular outflow. We estimate the physical properties this structure has in these two scenarios, and show that either explanation is viable. We suggest future observations with integral field spectrographs will be able to determine the true cause of this anomalous emission, and provide further evidence for interaction between quenched cooling flows and mechanical feedback on both small and large scales in this source.
Ämnesord
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Meteorologi och atmosfärforskning (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Meteorology and Atmospheric Sciences (hsv//eng)
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
- NATURVETENSKAP -- Fysik -- Fusion, plasma och rymdfysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Fusion, Plasma and Space Physics (hsv//eng)
Nyckelord
- ISM: jets and outflows
- galaxies: active
- galaxies: clusters: intracluster medium
- galaxies: individual: NGC 0708
- galaxies: elliptical and lenticular, cD
- galaxies: kinematics and dynamics
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
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North,
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Davis, Timothy A ...
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Bureau, Martin
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Gaspari, Massimo
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Cappellari, Mich ...
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Iguchi, Satoru
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visa fler...
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Liu, Lijie
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Onishi, Kyoko, 1 ...
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Sarzi, Marc
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Smith, Mark D.
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Williams, Thomas ...
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visa färre...
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