Astrophysics and Space Science

, Volume 311, Issue 1, pp 305–309

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

  • Michael A. Dopita
  • Michiel Reuland
  • Wil van Breugel
  • Wim de Vries
  • S. A. Stanford
  • Huub Röttgering
  • George Miley
  • Bram Venemans
  • Hy Spinrad
  • Steve Dawson
  • Arjun Dey
  • Mark Lacy
  • Daniel Stern
  • Andrew Bunker
Original Article

DOI: 10.1007/s10509-007-9538-0

Cite this article as:
Dopita, M.A., Reuland, M., van Breugel, W. et al. Astrophys Space Sci (2007) 311: 305. doi:10.1007/s10509-007-9538-0

Abstract

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.

Keywords

Galaxies: activeGalaxies: formationGalaxies: high-redshiftGalaxies: individual (4C 41.17, 4C 60.07, B2 0902+34)Quasars: emission lines

Copyright information

© Springer Science+Business Media B.V. 2007

Authors and Affiliations

  • Michael A. Dopita
    • 1
  • Michiel Reuland
    • 9
    • 2
    • 10
  • Wil van Breugel
    • 2
    • 5
  • Wim de Vries
    • 2
  • S. A. Stanford
    • 2
    • 10
  • Huub Röttgering
    • 3
  • George Miley
    • 3
  • Bram Venemans
    • 3
  • Hy Spinrad
    • 4
  • Steve Dawson
    • 4
  • Arjun Dey
    • 5
  • Mark Lacy
    • 6
  • Daniel Stern
    • 7
  • Andrew Bunker
    • 8
  1. 1.Research School of Astronomy and AstrophysicsANUWeston CreekAustralia
  2. 2.Institute of Geophysics and Planetary PhysicsLLNLLivermoreUSA
  3. 3.Sterrewacht LeidenLeidenNetherlands
  4. 4.Department of AstronomyUniversity California at BerkeleyBerkeleyUSA
  5. 5.University California at MercedMercedUSA
  6. 6.SIRTF Science Center, CaltechPasadenaUSA
  7. 7.JPLCalifornia Institute of TechnologyPasadenaUSA
  8. 8.IOACambridge UniversityCambridgeUK
  9. 9.Sterrewacht LeidenLeidenNetherlands
  10. 10.Physics Dept.University California at DavisDavisUSA