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Halo ejection in distant radio galaxies: jet feedback in massive galaxy formation

Dopita, Michael A. and Reuland, Michiel and van Breugel, Wil and de Vries, Wim and Stanford, S. A. and Röttgering, Huub and Miley, George and Venemans, Bram and Spinrad, Hy and Dawson, Steve and Dey, Arjun and Lacy, Mark and Stern, Daniel and Bunker, Andrew (2007) Halo ejection in distant radio galaxies: jet feedback in massive galaxy formation. Astrophysics and Space Science, 311 (1-3). pp. 305-309. ISSN 0004-640X. doi:10.1007/s10509-007-9538-0.

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We present results from a Keck optical and near IR spectroscopic study of the giant emission line halos of the z > 3 High Redshift Radio Galaxies (HiZRGs) 4C 41.17, 4C 60.07 and B2 0902+34. The outer regions of these halos show quiet kinematics with typical velocity dispersions of a few hundred km s^(−1) and velocity shears consistent with rotation. The inner regions contain shocked, clumpy cocoons of gas closely associated with the radio lobes with disturbed kinematics and expansion velocities and/or velocity dispersions > 1000 km s^(−1). We also find evidence for the ejection of chemically enriched material in 4C 41.17 up to a distance of ~60 kpc along the radio-axis. We infer that these HiZRGs are undergoing a final jet-induced phase of star formation with the ejection of most of their interstellar medium before evolving to become “red and dead” Elliptical galaxies.

Item Type:Article
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URLURL TypeDescription DOIArticle ReadCube access
Venemans, Bram0000-0001-9024-8322
Dey, Arjun0000-0002-4928-4003
Lacy, Mark0000-0002-3032-1783
Stern, Daniel0000-0003-2686-9241
Additional Information:© 2007 Springer. Received: 1 March 2007. Accepted: 3 June 2007. Published online: 2 August 2007. This work was performed under the auspices of the U.S. Department of Energy, National Nuclear Security Administration by the University of California, Lawrence Livermore National Laboratory under contract No. W-7405-Eng-48. M.D. acknowledges the support of the ANU and the Australian Research Council (ARC) for his ARC Australian Federation Fellowship, and also under the ARC Discovery projects DP0208445, DP0342844 and DP0664434.
Group:Infrared Processing and Analysis Center (IPAC)
Funding AgencyGrant Number
Department of Energy (DOE)W-7405-ENG-48
Australian National UniversityUNSPECIFIED
Australian Research CouncilDP0208445
Australian Research CouncilDP0342844
Australian Research CouncilDP0664434
Subject Keywords:galaxies : active; galaxies : formation; galaxies : high-redshift; galaxies : individual (4C 41.17, 4C 60.07, B2 0902+34); quasars : emission lines
Issue or Number:1-3
Record Number:CaltechAUTHORS:20100910-153534483
Persistent URL:
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:19877
Deposited By: Tony Diaz
Deposited On:15 Sep 2010 23:06
Last Modified:08 Nov 2021 23:55

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