Radio-loud high-redshift protogalaxy candidates in botes

Steve Croft, Wil Van Breugel, Michael J I Brown, Wim De Vries, Arjun Dey, Peter Eisenhardt, Buell Tomasson Jannuzi, Huub Röttgering, S. A. Stanford, Daniel Stern, S. P. Willner

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

We used the Near Infrared Camera on Keck I to obtain Ks -band images of four candidate high-redshift radio galaxies selected using optical and radio data in the NOAO Deep Wide-Field Survey in Boötes. Our targets have 1.4 GHz radio flux densities greater than 1 mJy, but are undetected in the optical to ≳24 Vega mag. Spectral energy distribution fitting suggests that three of these objects are at z > 3, with radio luminosities near the FR-I/FR-II break. The other has photometric redshift z phot = 1.2, but may in fact be at higher redshift. Two of the four objects exhibit diffuse morphologies in Ks -band, suggesting that they are still in the process of forming.

Original languageEnglish (US)
Pages (from-to)1793-1802
Number of pages10
JournalAstronomical Journal
Volume135
Issue number5
DOIs
StatePublished - May 1 2008
Externally publishedYes

Fingerprint

protogalaxies
radio
radio galaxies
spectral energy distribution
flux density
cameras
luminosity
field survey
near infrared
energy

Keywords

  • Galaxies: active
  • Galaxies: high-redshift
  • Galaxies: starburst
  • Infrared: galaxies

ASJC Scopus subject areas

  • Space and Planetary Science
  • Astronomy and Astrophysics

Cite this

Croft, S., Van Breugel, W., Brown, M. J. I., De Vries, W., Dey, A., Eisenhardt, P., ... Willner, S. P. (2008). Radio-loud high-redshift protogalaxy candidates in botes. Astronomical Journal, 135(5), 1793-1802. https://doi.org/10.1088/0004-6256/135/5/1793

Radio-loud high-redshift protogalaxy candidates in botes. / Croft, Steve; Van Breugel, Wil; Brown, Michael J I; De Vries, Wim; Dey, Arjun; Eisenhardt, Peter; Jannuzi, Buell Tomasson; Röttgering, Huub; Stanford, S. A.; Stern, Daniel; Willner, S. P.

In: Astronomical Journal, Vol. 135, No. 5, 01.05.2008, p. 1793-1802.

Research output: Contribution to journalArticle

Croft, S, Van Breugel, W, Brown, MJI, De Vries, W, Dey, A, Eisenhardt, P, Jannuzi, BT, Röttgering, H, Stanford, SA, Stern, D & Willner, SP 2008, 'Radio-loud high-redshift protogalaxy candidates in botes', Astronomical Journal, vol. 135, no. 5, pp. 1793-1802. https://doi.org/10.1088/0004-6256/135/5/1793
Croft S, Van Breugel W, Brown MJI, De Vries W, Dey A, Eisenhardt P et al. Radio-loud high-redshift protogalaxy candidates in botes. Astronomical Journal. 2008 May 1;135(5):1793-1802. https://doi.org/10.1088/0004-6256/135/5/1793
Croft, Steve ; Van Breugel, Wil ; Brown, Michael J I ; De Vries, Wim ; Dey, Arjun ; Eisenhardt, Peter ; Jannuzi, Buell Tomasson ; Röttgering, Huub ; Stanford, S. A. ; Stern, Daniel ; Willner, S. P. / Radio-loud high-redshift protogalaxy candidates in botes. In: Astronomical Journal. 2008 ; Vol. 135, No. 5. pp. 1793-1802.
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