What will the next generation radio telescope detect at 1.4 GHZ?

A. Hopkins, Rogier Windhorst, L. Cram, R. Ekers

Research output: Contribution to journalArticle

27 Citations (Scopus)

Abstract

An international project is underway to design and build a radio telescope with an effective collecting area two orders of magnitude greater than the largest existing instruments. One of the many scientific goals of this instrument will be the investigation of the extragalactic radio source population at flux densities two to three orders of magnitude fainter than the limits of existing observations. We present simulations of the radio sky at 1.4 GHz down to a flux density limit of 0.1 μJy using extrapolations of known radio luminosity functions for two different population scenarios. The resulting simulations confirm that a resolution of 0″.1 is necessary to avoid formal confusion, but source blending may still dominate if the intrinsic size of such faint sources is larger than a few kiloparsecs.

Original languageEnglish (US)
Pages (from-to)419-437
Number of pages19
JournalExperimental Astronomy
Volume10
Issue number4
StatePublished - 2000

Fingerprint

radio telescopes
flux density
radio
extragalactic radio sources
confusion
sky
extrapolation
simulation
luminosity

Keywords

  • Galaxies: Evolution
  • Galaxies: General
  • Galaxies: Luminosity function

ASJC Scopus subject areas

  • Space and Planetary Science
  • Astronomy and Astrophysics

Cite this

What will the next generation radio telescope detect at 1.4 GHZ? / Hopkins, A.; Windhorst, Rogier; Cram, L.; Ekers, R.

In: Experimental Astronomy, Vol. 10, No. 4, 2000, p. 419-437.

Research output: Contribution to journalArticle

Hopkins, A, Windhorst, R, Cram, L & Ekers, R 2000, 'What will the next generation radio telescope detect at 1.4 GHZ?', Experimental Astronomy, vol. 10, no. 4, pp. 419-437.
Hopkins, A. ; Windhorst, Rogier ; Cram, L. ; Ekers, R. / What will the next generation radio telescope detect at 1.4 GHZ?. In: Experimental Astronomy. 2000 ; Vol. 10, No. 4. pp. 419-437.
@article{829bdf4d8ad1426bb46728f2fd7d4fd9,
title = "What will the next generation radio telescope detect at 1.4 GHZ?",
abstract = "An international project is underway to design and build a radio telescope with an effective collecting area two orders of magnitude greater than the largest existing instruments. One of the many scientific goals of this instrument will be the investigation of the extragalactic radio source population at flux densities two to three orders of magnitude fainter than the limits of existing observations. We present simulations of the radio sky at 1.4 GHz down to a flux density limit of 0.1 μJy using extrapolations of known radio luminosity functions for two different population scenarios. The resulting simulations confirm that a resolution of 0″.1 is necessary to avoid formal confusion, but source blending may still dominate if the intrinsic size of such faint sources is larger than a few kiloparsecs.",
keywords = "Galaxies: Evolution, Galaxies: General, Galaxies: Luminosity function",
author = "A. Hopkins and Rogier Windhorst and L. Cram and R. Ekers",
year = "2000",
language = "English (US)",
volume = "10",
pages = "419--437",
journal = "Experimental Astronomy",
issn = "0922-6435",
publisher = "Springer Netherlands",
number = "4",

}

TY - JOUR

T1 - What will the next generation radio telescope detect at 1.4 GHZ?

AU - Hopkins, A.

AU - Windhorst, Rogier

AU - Cram, L.

AU - Ekers, R.

PY - 2000

Y1 - 2000

N2 - An international project is underway to design and build a radio telescope with an effective collecting area two orders of magnitude greater than the largest existing instruments. One of the many scientific goals of this instrument will be the investigation of the extragalactic radio source population at flux densities two to three orders of magnitude fainter than the limits of existing observations. We present simulations of the radio sky at 1.4 GHz down to a flux density limit of 0.1 μJy using extrapolations of known radio luminosity functions for two different population scenarios. The resulting simulations confirm that a resolution of 0″.1 is necessary to avoid formal confusion, but source blending may still dominate if the intrinsic size of such faint sources is larger than a few kiloparsecs.

AB - An international project is underway to design and build a radio telescope with an effective collecting area two orders of magnitude greater than the largest existing instruments. One of the many scientific goals of this instrument will be the investigation of the extragalactic radio source population at flux densities two to three orders of magnitude fainter than the limits of existing observations. We present simulations of the radio sky at 1.4 GHz down to a flux density limit of 0.1 μJy using extrapolations of known radio luminosity functions for two different population scenarios. The resulting simulations confirm that a resolution of 0″.1 is necessary to avoid formal confusion, but source blending may still dominate if the intrinsic size of such faint sources is larger than a few kiloparsecs.

KW - Galaxies: Evolution

KW - Galaxies: General

KW - Galaxies: Luminosity function

UR - http://www.scopus.com/inward/record.url?scp=0034360127&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0034360127&partnerID=8YFLogxK

M3 - Article

VL - 10

SP - 419

EP - 437

JO - Experimental Astronomy

JF - Experimental Astronomy

SN - 0922-6435

IS - 4

ER -