Feedback and brightest cluster galaxy formation

ACS observations of the radio galaxy TN J1338-1942 at z = 4.1

Andrew W. Zirm, R. A. Overzier, G. K. Miley, J. P. Blakeslee, M. Clampin, C. De Breuck, R. Demarco, H. C. Ford, G. F. Hartig, N. Homeier, G. D. Illingworth, A. R. Martel, H. J A Röttgering, B. Venemans, D. R. Ardila, F. Bartko, N. Benítez, R. J. Bouwens, L. D. Bradley, T. J. Broadhurst & 26 others R. A. Brown, C. J. Burrows, E. S. Cheno, N. J G Cross, P. D. Feldman, M. Franx, D. A. Golimowski, T. Goto, C. Gronwall, B. Holden, L. Infante, R. A. Kimble, J. E. Krist, M. P. Lesser, S. Mei, F. Menanteau, G. R. Meurer, V. Motta, M. Postman, P. Rosati, M. Sirianni, W. B. Sparks, H. D. Tran, Zlatan Tsvetanov, R. L. White, W. Zheng

Research output: Contribution to journalArticle

34 Citations (Scopus)

Abstract

We present deep optical imaging of the z = 4.1 radio galaxy TN J1338-1942, obtained using the Advanced Camera for Surveys (ACS) on board the Hubble Space Telescope, as well as ground-based near-infrared imaging data from the European Southern Observatory (ESO) Very Large Telescope (VLT). The radio galaxy is known to reside within a large galaxy overdensity (both in physical extent and density contrast). There is good evidence that this "protocluster" region is the progenitor of a present-day rich galaxy cluster. TN J1338 is the dominant galaxy in the protocluster in terms of size and luminosity (in both the optical and near-infrared) and therefore seems destined to evolve into the brightest cluster galaxy. The high spatial resolution ACS images reveal several kiloparsec-scale features within and around the radio galaxy. The continuum light is aligned with the radio axis and is resolved into two clumps in the i775 and z850 bands. These components have luminosities ∼109 L⊙ and sizes of a few kpc. The estimated nebular continuum, scattered light, synchrotron- and inverse Compton-scattering contributions to the aligned continuum light are only a few percent of the observed total, indicating that the observed flux is likely dominated by forming stars. The estimated star formation rate for the whole radio galaxy is ∼200 M⊙ yr-1. A simple model in which the jet has triggered star formation in these continuum knots is consistent with the available data. A striking, but small, linear feature is evident in the z850 aligned light and may be indicative of a large-scale shock associated with the advance of the radio jet. The rest of the aligned light also seems morphologically consistent with star formation induced by shocks associated with the radio source, as seen in other high-z radio galaxies (e.g., 4C 41.17). An unusual feature is seen in Lya emission. A wedge-shaped extension emanates from the radio galaxy perpendicularly to the radio axis. This "wedge" naturally connects to the surrounding asymmetric, large-scale (∼ 100 kpc) Lyα halo. We posit that the wedge is a starburst-driven superwind associated with the first major epoch of formation of the brightest cluster galaxy. The shock and wedge are examples of feedback processes due to both active galactic nucleus and star formation in the earliest stages of massive galaxy formation.

Original languageEnglish
Pages (from-to)68-81
Number of pages14
JournalAstrophysical Journal
Volume630
Issue number1 I
DOIs
Publication statusPublished - 1 Sep 2005
Externally publishedYes

Fingerprint

radio galaxies
galactic evolution
cameras
radio
wedges
galaxies
continuums
star formation
shock
luminosity
clumps
star formation rate
European Southern Observatory
near infrared
Hubble Space Telescope
active galactic nuclei
halos
synchrotrons
spatial resolution
time measurement

Keywords

  • Galaxies: active
  • Galaxies: halos
  • Galaxies: high-redshift
  • Galaxies: individual (TN J1338-1942)

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

Cite this

Zirm, A. W., Overzier, R. A., Miley, G. K., Blakeslee, J. P., Clampin, M., De Breuck, C., ... Zheng, W. (2005). Feedback and brightest cluster galaxy formation: ACS observations of the radio galaxy TN J1338-1942 at z = 4.1. Astrophysical Journal, 630(1 I), 68-81. https://doi.org/10.1086/431921

Feedback and brightest cluster galaxy formation : ACS observations of the radio galaxy TN J1338-1942 at z = 4.1. / Zirm, Andrew W.; Overzier, R. A.; Miley, G. K.; Blakeslee, J. P.; Clampin, M.; De Breuck, C.; Demarco, R.; Ford, H. C.; Hartig, G. F.; Homeier, N.; Illingworth, G. D.; Martel, A. R.; Röttgering, H. J A; Venemans, B.; Ardila, D. R.; Bartko, F.; Benítez, N.; Bouwens, R. J.; Bradley, L. D.; Broadhurst, T. J.; Brown, R. A.; Burrows, C. J.; Cheno, E. S.; Cross, N. J G; Feldman, P. D.; Franx, M.; Golimowski, D. A.; Goto, T.; Gronwall, C.; Holden, B.; Infante, L.; Kimble, R. A.; Krist, J. E.; Lesser, M. P.; Mei, S.; Menanteau, F.; Meurer, G. R.; Motta, V.; Postman, M.; Rosati, P.; Sirianni, M.; Sparks, W. B.; Tran, H. D.; Tsvetanov, Zlatan; White, R. L.; Zheng, W.

In: Astrophysical Journal, Vol. 630, No. 1 I, 01.09.2005, p. 68-81.

Research output: Contribution to journalArticle

Zirm, AW, Overzier, RA, Miley, GK, Blakeslee, JP, Clampin, M, De Breuck, C, Demarco, R, Ford, HC, Hartig, GF, Homeier, N, Illingworth, GD, Martel, AR, Röttgering, HJA, Venemans, B, Ardila, DR, Bartko, F, Benítez, N, Bouwens, RJ, Bradley, LD, Broadhurst, TJ, Brown, RA, Burrows, CJ, Cheno, ES, Cross, NJG, Feldman, PD, Franx, M, Golimowski, DA, Goto, T, Gronwall, C, Holden, B, Infante, L, Kimble, RA, Krist, JE, Lesser, MP, Mei, S, Menanteau, F, Meurer, GR, Motta, V, Postman, M, Rosati, P, Sirianni, M, Sparks, WB, Tran, HD, Tsvetanov, Z, White, RL & Zheng, W 2005, 'Feedback and brightest cluster galaxy formation: ACS observations of the radio galaxy TN J1338-1942 at z = 4.1', Astrophysical Journal, vol. 630, no. 1 I, pp. 68-81. https://doi.org/10.1086/431921
Zirm, Andrew W. ; Overzier, R. A. ; Miley, G. K. ; Blakeslee, J. P. ; Clampin, M. ; De Breuck, C. ; Demarco, R. ; Ford, H. C. ; Hartig, G. F. ; Homeier, N. ; Illingworth, G. D. ; Martel, A. R. ; Röttgering, H. J A ; Venemans, B. ; Ardila, D. R. ; Bartko, F. ; Benítez, N. ; Bouwens, R. J. ; Bradley, L. D. ; Broadhurst, T. J. ; Brown, R. A. ; Burrows, C. J. ; Cheno, E. S. ; Cross, N. J G ; Feldman, P. D. ; Franx, M. ; Golimowski, D. A. ; Goto, T. ; Gronwall, C. ; Holden, B. ; Infante, L. ; Kimble, R. A. ; Krist, J. E. ; Lesser, M. P. ; Mei, S. ; Menanteau, F. ; Meurer, G. R. ; Motta, V. ; Postman, M. ; Rosati, P. ; Sirianni, M. ; Sparks, W. B. ; Tran, H. D. ; Tsvetanov, Zlatan ; White, R. L. ; Zheng, W. / Feedback and brightest cluster galaxy formation : ACS observations of the radio galaxy TN J1338-1942 at z = 4.1. In: Astrophysical Journal. 2005 ; Vol. 630, No. 1 I. pp. 68-81.
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abstract = "We present deep optical imaging of the z = 4.1 radio galaxy TN J1338-1942, obtained using the Advanced Camera for Surveys (ACS) on board the Hubble Space Telescope, as well as ground-based near-infrared imaging data from the European Southern Observatory (ESO) Very Large Telescope (VLT). The radio galaxy is known to reside within a large galaxy overdensity (both in physical extent and density contrast). There is good evidence that this {"}protocluster{"} region is the progenitor of a present-day rich galaxy cluster. TN J1338 is the dominant galaxy in the protocluster in terms of size and luminosity (in both the optical and near-infrared) and therefore seems destined to evolve into the brightest cluster galaxy. The high spatial resolution ACS images reveal several kiloparsec-scale features within and around the radio galaxy. The continuum light is aligned with the radio axis and is resolved into two clumps in the i775 and z850 bands. These components have luminosities ∼109 L⊙ and sizes of a few kpc. The estimated nebular continuum, scattered light, synchrotron- and inverse Compton-scattering contributions to the aligned continuum light are only a few percent of the observed total, indicating that the observed flux is likely dominated by forming stars. The estimated star formation rate for the whole radio galaxy is ∼200 M⊙ yr-1. A simple model in which the jet has triggered star formation in these continuum knots is consistent with the available data. A striking, but small, linear feature is evident in the z850 aligned light and may be indicative of a large-scale shock associated with the advance of the radio jet. The rest of the aligned light also seems morphologically consistent with star formation induced by shocks associated with the radio source, as seen in other high-z radio galaxies (e.g., 4C 41.17). An unusual feature is seen in Lya emission. A wedge-shaped extension emanates from the radio galaxy perpendicularly to the radio axis. This {"}wedge{"} naturally connects to the surrounding asymmetric, large-scale (∼ 100 kpc) Lyα halo. We posit that the wedge is a starburst-driven superwind associated with the first major epoch of formation of the brightest cluster galaxy. The shock and wedge are examples of feedback processes due to both active galactic nucleus and star formation in the earliest stages of massive galaxy formation.",
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TY - JOUR

T1 - Feedback and brightest cluster galaxy formation

T2 - ACS observations of the radio galaxy TN J1338-1942 at z = 4.1

AU - Zirm, Andrew W.

AU - Overzier, R. A.

AU - Miley, G. K.

AU - Blakeslee, J. P.

AU - Clampin, M.

AU - De Breuck, C.

AU - Demarco, R.

AU - Ford, H. C.

AU - Hartig, G. F.

AU - Homeier, N.

AU - Illingworth, G. D.

AU - Martel, A. R.

AU - Röttgering, H. J A

AU - Venemans, B.

AU - Ardila, D. R.

AU - Bartko, F.

AU - Benítez, N.

AU - Bouwens, R. J.

AU - Bradley, L. D.

AU - Broadhurst, T. J.

AU - Brown, R. A.

AU - Burrows, C. J.

AU - Cheno, E. S.

AU - Cross, N. J G

AU - Feldman, P. D.

AU - Franx, M.

AU - Golimowski, D. A.

AU - Goto, T.

AU - Gronwall, C.

AU - Holden, B.

AU - Infante, L.

AU - Kimble, R. A.

AU - Krist, J. E.

AU - Lesser, M. P.

AU - Mei, S.

AU - Menanteau, F.

AU - Meurer, G. R.

AU - Motta, V.

AU - Postman, M.

AU - Rosati, P.

AU - Sirianni, M.

AU - Sparks, W. B.

AU - Tran, H. D.

AU - Tsvetanov, Zlatan

AU - White, R. L.

AU - Zheng, W.

PY - 2005/9/1

Y1 - 2005/9/1

N2 - We present deep optical imaging of the z = 4.1 radio galaxy TN J1338-1942, obtained using the Advanced Camera for Surveys (ACS) on board the Hubble Space Telescope, as well as ground-based near-infrared imaging data from the European Southern Observatory (ESO) Very Large Telescope (VLT). The radio galaxy is known to reside within a large galaxy overdensity (both in physical extent and density contrast). There is good evidence that this "protocluster" region is the progenitor of a present-day rich galaxy cluster. TN J1338 is the dominant galaxy in the protocluster in terms of size and luminosity (in both the optical and near-infrared) and therefore seems destined to evolve into the brightest cluster galaxy. The high spatial resolution ACS images reveal several kiloparsec-scale features within and around the radio galaxy. The continuum light is aligned with the radio axis and is resolved into two clumps in the i775 and z850 bands. These components have luminosities ∼109 L⊙ and sizes of a few kpc. The estimated nebular continuum, scattered light, synchrotron- and inverse Compton-scattering contributions to the aligned continuum light are only a few percent of the observed total, indicating that the observed flux is likely dominated by forming stars. The estimated star formation rate for the whole radio galaxy is ∼200 M⊙ yr-1. A simple model in which the jet has triggered star formation in these continuum knots is consistent with the available data. A striking, but small, linear feature is evident in the z850 aligned light and may be indicative of a large-scale shock associated with the advance of the radio jet. The rest of the aligned light also seems morphologically consistent with star formation induced by shocks associated with the radio source, as seen in other high-z radio galaxies (e.g., 4C 41.17). An unusual feature is seen in Lya emission. A wedge-shaped extension emanates from the radio galaxy perpendicularly to the radio axis. This "wedge" naturally connects to the surrounding asymmetric, large-scale (∼ 100 kpc) Lyα halo. We posit that the wedge is a starburst-driven superwind associated with the first major epoch of formation of the brightest cluster galaxy. The shock and wedge are examples of feedback processes due to both active galactic nucleus and star formation in the earliest stages of massive galaxy formation.

AB - We present deep optical imaging of the z = 4.1 radio galaxy TN J1338-1942, obtained using the Advanced Camera for Surveys (ACS) on board the Hubble Space Telescope, as well as ground-based near-infrared imaging data from the European Southern Observatory (ESO) Very Large Telescope (VLT). The radio galaxy is known to reside within a large galaxy overdensity (both in physical extent and density contrast). There is good evidence that this "protocluster" region is the progenitor of a present-day rich galaxy cluster. TN J1338 is the dominant galaxy in the protocluster in terms of size and luminosity (in both the optical and near-infrared) and therefore seems destined to evolve into the brightest cluster galaxy. The high spatial resolution ACS images reveal several kiloparsec-scale features within and around the radio galaxy. The continuum light is aligned with the radio axis and is resolved into two clumps in the i775 and z850 bands. These components have luminosities ∼109 L⊙ and sizes of a few kpc. The estimated nebular continuum, scattered light, synchrotron- and inverse Compton-scattering contributions to the aligned continuum light are only a few percent of the observed total, indicating that the observed flux is likely dominated by forming stars. The estimated star formation rate for the whole radio galaxy is ∼200 M⊙ yr-1. A simple model in which the jet has triggered star formation in these continuum knots is consistent with the available data. A striking, but small, linear feature is evident in the z850 aligned light and may be indicative of a large-scale shock associated with the advance of the radio jet. The rest of the aligned light also seems morphologically consistent with star formation induced by shocks associated with the radio source, as seen in other high-z radio galaxies (e.g., 4C 41.17). An unusual feature is seen in Lya emission. A wedge-shaped extension emanates from the radio galaxy perpendicularly to the radio axis. This "wedge" naturally connects to the surrounding asymmetric, large-scale (∼ 100 kpc) Lyα halo. We posit that the wedge is a starburst-driven superwind associated with the first major epoch of formation of the brightest cluster galaxy. The shock and wedge are examples of feedback processes due to both active galactic nucleus and star formation in the earliest stages of massive galaxy formation.

KW - Galaxies: active

KW - Galaxies: halos

KW - Galaxies: high-redshift

KW - Galaxies: individual (TN J1338-1942)

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