LBA observations of the "baby quasar" F00183-7112
Abstract
The Ultraluminous Infrared Galaxy (ULIRG) IRAS F00183-711 is dominated by vigorous star formation at optical wavelengths, which is confirmed by our CO detection with ATCA, and which we have imaged using Cycle 0 ALMA observations. On the other hand, it has a radio-loud AGN embedded in its core. We have imaged this radio source with the Australian LBA, and show that it consists of two jets just 7 pc across, which are presumably boring their way out through the dust and gas surrounding them, and will eventually break out, quenching the star formation and signalling the appearance of a radio-loud quasar or radio galaxy. IRAS F00183-711 therefore appears to have been caught in the fleeting transition from “cold-mode” accretion to “hot-mode” accretion, showing a radio-loud AGN ramping up its activity while the host is still undergoing a vigorous starburst. The ``standard model'' suggests that this activity was triggered by a merger, and in the VLBI image we see a suggestion of a double core to the VLBI jet. This VLBI image was made with twelve-year-old old S2 data, and had several data problems. Here we propose to re-image it with the current VLBI system to obtain a more reliable and higher dynamic range image, with the specific goals of (a) examining the evidence for two AGN cores, and (b) looking for evidence of interaction between the jets and the interstellar medium.
- Publication:
-
ATNF Proposal
- Pub Date:
- October 2013
- Bibcode:
- 2013atnf.prop.5882N
- Keywords:
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- active galactic nuclei: quasars;
- LBA