The LBDS Hercules sample of mJy radio sources at 1.4 GHz - I. Multicolour photometry

I. Waddington, Rogier Windhorst, J. S. Dunlop, D. C. Koo, J. A. Peacock

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

The results are presented of an extensive programme of optical and infrared imaging of radio sources in a complete subsample of the Leiden-Berkeley Deep Survey. The LBDS Hercules sample consists of 72 sources observed at 1.4 GHz, with flux densities S1.4 ≥ 1.0 mJy, in a 1.2 deg2 region of Hercules. This sample is almost completely identified in the g, r, i and K bands, with some additional data available at J and H. The magnitude distributions peak at r ≃ 22 mag, K ≃ 16 mag and extend down to r ≃ 26 mag, K ≃ 21 mag. The K-band magnitude distributions for the radio galaxies and quasars are compared with those of other radio surveys. At S1.4 GHZ ≲ 1 Jy, the K-band distribution does not change significantly with radio flux density. The sources span a broad range of colours, with several being extremely red (r - K ≳ 6). Though small, this is the most optically complete sample of mJy radio sources available at 1.4 GHz, and is ideally suited for studying the evolution of the radio luminosity function out to high redshifts.

Original languageEnglish (US)
Pages (from-to)801-824
Number of pages24
JournalMonthly Notices of the Royal Astronomical Society
Volume317
Issue number4
StatePublished - Oct 1 2000

Fingerprint

extremely high frequencies
photometry
radio
flux density
radio galaxies
quasars
luminosity
color
distribution

Keywords

  • Galaxies: active
  • Galaxies: photometry
  • Quasars: general
  • Radio continuum: galaxies

ASJC Scopus subject areas

  • Space and Planetary Science

Cite this

The LBDS Hercules sample of mJy radio sources at 1.4 GHz - I. Multicolour photometry. / Waddington, I.; Windhorst, Rogier; Dunlop, J. S.; Koo, D. C.; Peacock, J. A.

In: Monthly Notices of the Royal Astronomical Society, Vol. 317, No. 4, 01.10.2000, p. 801-824.

Research output: Contribution to journalArticle

Waddington, I. ; Windhorst, Rogier ; Dunlop, J. S. ; Koo, D. C. ; Peacock, J. A. / The LBDS Hercules sample of mJy radio sources at 1.4 GHz - I. Multicolour photometry. In: Monthly Notices of the Royal Astronomical Society. 2000 ; Vol. 317, No. 4. pp. 801-824.
@article{698469dbb9024c03a1293cbb93d3881e,
title = "The LBDS Hercules sample of mJy radio sources at 1.4 GHz - I. Multicolour photometry",
abstract = "The results are presented of an extensive programme of optical and infrared imaging of radio sources in a complete subsample of the Leiden-Berkeley Deep Survey. The LBDS Hercules sample consists of 72 sources observed at 1.4 GHz, with flux densities S1.4 ≥ 1.0 mJy, in a 1.2 deg2 region of Hercules. This sample is almost completely identified in the g, r, i and K bands, with some additional data available at J and H. The magnitude distributions peak at r ≃ 22 mag, K ≃ 16 mag and extend down to r ≃ 26 mag, K ≃ 21 mag. The K-band magnitude distributions for the radio galaxies and quasars are compared with those of other radio surveys. At S1.4 GHZ ≲ 1 Jy, the K-band distribution does not change significantly with radio flux density. The sources span a broad range of colours, with several being extremely red (r - K ≳ 6). Though small, this is the most optically complete sample of mJy radio sources available at 1.4 GHz, and is ideally suited for studying the evolution of the radio luminosity function out to high redshifts.",
keywords = "Galaxies: active, Galaxies: photometry, Quasars: general, Radio continuum: galaxies",
author = "I. Waddington and Rogier Windhorst and Dunlop, {J. S.} and Koo, {D. C.} and Peacock, {J. A.}",
year = "2000",
month = "10",
day = "1",
language = "English (US)",
volume = "317",
pages = "801--824",
journal = "Monthly Notices of the Royal Astronomical Society",
issn = "0035-8711",
publisher = "Oxford University Press",
number = "4",

}

TY - JOUR

T1 - The LBDS Hercules sample of mJy radio sources at 1.4 GHz - I. Multicolour photometry

AU - Waddington, I.

AU - Windhorst, Rogier

AU - Dunlop, J. S.

AU - Koo, D. C.

AU - Peacock, J. A.

PY - 2000/10/1

Y1 - 2000/10/1

N2 - The results are presented of an extensive programme of optical and infrared imaging of radio sources in a complete subsample of the Leiden-Berkeley Deep Survey. The LBDS Hercules sample consists of 72 sources observed at 1.4 GHz, with flux densities S1.4 ≥ 1.0 mJy, in a 1.2 deg2 region of Hercules. This sample is almost completely identified in the g, r, i and K bands, with some additional data available at J and H. The magnitude distributions peak at r ≃ 22 mag, K ≃ 16 mag and extend down to r ≃ 26 mag, K ≃ 21 mag. The K-band magnitude distributions for the radio galaxies and quasars are compared with those of other radio surveys. At S1.4 GHZ ≲ 1 Jy, the K-band distribution does not change significantly with radio flux density. The sources span a broad range of colours, with several being extremely red (r - K ≳ 6). Though small, this is the most optically complete sample of mJy radio sources available at 1.4 GHz, and is ideally suited for studying the evolution of the radio luminosity function out to high redshifts.

AB - The results are presented of an extensive programme of optical and infrared imaging of radio sources in a complete subsample of the Leiden-Berkeley Deep Survey. The LBDS Hercules sample consists of 72 sources observed at 1.4 GHz, with flux densities S1.4 ≥ 1.0 mJy, in a 1.2 deg2 region of Hercules. This sample is almost completely identified in the g, r, i and K bands, with some additional data available at J and H. The magnitude distributions peak at r ≃ 22 mag, K ≃ 16 mag and extend down to r ≃ 26 mag, K ≃ 21 mag. The K-band magnitude distributions for the radio galaxies and quasars are compared with those of other radio surveys. At S1.4 GHZ ≲ 1 Jy, the K-band distribution does not change significantly with radio flux density. The sources span a broad range of colours, with several being extremely red (r - K ≳ 6). Though small, this is the most optically complete sample of mJy radio sources available at 1.4 GHz, and is ideally suited for studying the evolution of the radio luminosity function out to high redshifts.

KW - Galaxies: active

KW - Galaxies: photometry

KW - Quasars: general

KW - Radio continuum: galaxies

UR - http://www.scopus.com/inward/record.url?scp=0013302050&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0013302050&partnerID=8YFLogxK

M3 - Article

VL - 317

SP - 801

EP - 824

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

SN - 0035-8711

IS - 4

ER -