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http://hdl.handle.net/20.500.12386/28624
Title: | Testing the blast-wave AGN feedback scenario in MCG-03-58-007 | Authors: | Sirressi, M. CICONE, CLAUDIA SEVERGNINI, Paola BRAITO, Valentina Dotti, M. DELLA CECA, Roberto Reeves, J. N. Matzeu, G. A. Vignali, C. Ballo, L. |
Issue Date: | 2019 | Journal: | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | Number: | 489 | Issue: | 2 | First Page: | 1927 | Abstract: | We report the first Atacama large millimeter/submillimeter array observations of MCG-03-58-007, a local (z = 0.03236 ± 0.00002, this work) AGN (L_{AGN }∼ 10^{45} erg s^{-1}), hosting a powerful X-ray ultrafast (v = 0.1c) outflow (UFO). The CO(1-0) line emission is observed across ∼18 kpc scales with a resolution of ∼ 1 kpc. About 78 per cent of the CO(1-0) luminosity traces a galaxy-size rotating disc. However, after subtracting the emission due to such rotating disc, we detect with a S/N = 20 a residual emission in the central ∼4 kpc. Such residuals may trace a low velocity (v<SUB>LOS</SUB> = 170 km s<SUP>-1</SUP>) outflow. We compare the momentum rate (\dot{P}) and kinetic power (\dot{E}) of such putative molecular outflow with that of the X-ray UFO and find \dot{P}_{ mol}/\dot{P}_{ UFO}∼ 0.4 and \dot{E}_{ mol}/\dot{E}_{ UFO}∼ 4× 10^{-3}. This result is at odds with the energy-conserving scenario suggested by the large momentum boosts measured in some other molecular outflows. An alternative interpretation of the residual CO emission would be a compact rotating structure, distinct from the main disc, which would be a factor of ∼10-100 more extended and massive than typical circumnuclear discs revealed in Seyferts. In conclusion, in both scenarios, our results rule out the hypothesis of a momentum-boosted molecular outflow in this AGN, despite the presence of a powerful X-ray UFO. | URI: | http://hdl.handle.net/20.500.12386/28624 | URL: | https://academic.oup.com/mnras/article/489/2/1927/5549530 | ISSN: | 0035-8711 | DOI: | 10.1093/mnras/stz2249 | Bibcode ADS: | 2019MNRAS.489.1927S | Fulltext: | open |
Appears in Collections: | 1.01 Articoli in rivista |
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File | Description | Size | Format | |
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Sirressi_2019.pdf | Article | 5.28 MB | Adobe PDF | View/Open |
stz2249.pdf | PDF editoriale | 4.42 MB | Adobe PDF | View/Open |
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