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

doi:10.1007/s10509-007-9538-0

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

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

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.

Original language	English
Pages (from-to)	305-309
Number of pages	5
Journal	Astrophysics and Space Science
Volume	311
Issue number	1-3
DOIs	https://doi.org/10.1007/s10509-007-9538-0
Publication status	Published - Oct 2007

Access to Document

10.1007/s10509-007-9538-0

Cite this

@article{5c5526ad4c88473db61c3fc860461eee,

title = "Halo ejection in distant radio galaxies: Jet feedback in massive galaxy formation",

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: active, Galaxies: formation, Galaxies: high-redshift, Galaxies: individual (4C 41.17, 4C 60.07, B2 0902+34), Quasars: emission lines",

author = "Dopita, {Michael A.} and Michiel Reuland and {Van Breugel}, Wil and {De Vries}, Wim and Stanford, {S. A.} and Huub R{\"o}ttgering and George Miley and Bram Venemans and Hy Spinrad and Steve Dawson and Arjun Dey and Mark Lacy and Daniel Stern and Andrew Bunker",

year = "2007",

month = oct,

doi = "10.1007/s10509-007-9538-0",

language = "English",

volume = "311",

pages = "305--309",

journal = "Astrophysics and Space Science",

issn = "0004-640X",

publisher = "Springer Netherlands",

number = "1-3",

}

TY - JOUR

T1 - Halo ejection in distant radio galaxies

T2 - Jet feedback in massive galaxy formation

AU - Dopita, Michael A.

AU - Reuland, Michiel

AU - Van Breugel, Wil

AU - De Vries, Wim

AU - Stanford, S. A.

AU - Röttgering, Huub

AU - Miley, George

AU - Venemans, Bram

AU - Spinrad, Hy

AU - Dawson, Steve

AU - Dey, Arjun

AU - Lacy, Mark

AU - Stern, Daniel

AU - Bunker, Andrew

PY - 2007/10

Y1 - 2007/10

N2 - 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.

AB - 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.

KW - Galaxies: active

KW - Galaxies: formation

KW - Galaxies: high-redshift

KW - Galaxies: individual (4C 41.17, 4C 60.07, B2 0902+34)

KW - Quasars: emission lines

UR - http://www.scopus.com/inward/record.url?scp=35248876181&partnerID=8YFLogxK

U2 - 10.1007/s10509-007-9538-0

DO - 10.1007/s10509-007-9538-0

M3 - Article

SN - 0004-640X

VL - 311

SP - 305

EP - 309

JO - Astrophysics and Space Science

JF - Astrophysics and Space Science

IS - 1-3

ER -

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

Abstract

Access to Document

Other files and links

Fingerprint

Cite this