NOAO >   Observing Info >   Approved Programs >   2010A-0157

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Proposal Information for 2010A-0157


PI: Andy Young, University of Bristol, andy.young@bristol.ac.uk
Address: H.H. Wills Physics Laboratory, Tyndall Avenue, Bristol BS8 1TL, UK

CoI: Diana Worrall, University of Bristol
CoI: Bob Fosbury, ST-ECF/ESO
CoI: Raffaella Morganti, Netherlands Institute for Radio Astronomy
CoI: Clive Tadhunter, University of Sheffield

Title: The Jet-Cloud Interaction of PKS B2152-699

Abstract: As part of our approved joint \emphChandra/Gemini proposal (11700377), we propose Integral Field Unit (IFU) spectroscopy of the jet- cloud interaction region in the powerful radio galaxy PKS B2152-699, using the integral field mode of the GMOS instrument on Gemini South. The relativistic jet originating in the nucleus of PKS B2152-699 runs into a cloud of dense gas approximately 10\arcsec northeast of the nucleus, which deflects the jet and produces radio, optical and X-ray emission. The optical spectrum of the jet-cloud interaction region shows emission lines from an unusually broad range of ionization states, produced by a combination of collisionaly-ionized and photo-ionized plasmas. Spatially resolved IFU spectroscopy will map the ionization structure and dynamics throughout the jet-cloud interaction region, and hence the mechanism(s) by which the jet deposits energy into this region. Hubble Space Telescope images of the jet-cloud interaction show discrete sources and filamentary structure with a spatial scale well matched to the IFU field of view (~ 3\farcs5 \times 5\arcsec). The IFU spectroscopy will be combined with existing radio data and approved \emphChandra X-ray observations to estimate both the time-averaged and instantaneous jet power, to determine how the jet-cloud interaction region is being ionized, and to understand how jets deposit energy into their environment.


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