B2114+022: A distant radio source gravitationally lensed by a starburst galaxy

Augusto, P., Browne, I. W. A., Wilkinson, P. N., Jackson, N. J., Fassnacht, C. D., Muxlow, T. W. B., Hjorth, J., Jaunsen, A. O., Koopmans, L. V., Patnaik, A. R. & Taylor, G. B., 21-Sep-2001, In : Monthly Notices of the Royal Astronomical Society. 326, 3, p. 1007-1014 8 p.

Research output: Contribution to journalArticleAcademicpeer-review

  • Pedro Augusto
  • Ian W.~A. Browne
  • Peter N. Wilkinson
  • Neal J. Jackson
  • Chris D. Fassnacht
  • Tom W.~B. Muxlow
  • Jens Hjorth
  • Andreas O. Jaunsen
  • Leon V. Koopmans
  • Alok R. Patnaik
  • Greg B. Taylor
We have discovered a radio source (B2114+022) with a unique structure during the course of the JVAS gravitational lens survey. VLA, MERLIN, VLBA and MERLIN+EVN radio maps reveal four compact components, in a configuration unlike that of any known lens system, or, for that matter, any of the ∼15 000 radio sources in the JVAS and CLASS surveys. Three of the components are within 0.3 arcsec of each other while the fourth is separated from the group by 2.4 arcsec. The widest separation pair of components have similar radio structures and spectra. The other pair also have similar properties. This latter pair have spectra which peak at ∼5 GHz. Their surface brightnesses are much lower than expected for synchrotron self-absorbed components.
Original languageEnglish
Pages (from-to)1007-1014
Number of pages8
JournalMonthly Notices of the Royal Astronomical Society
Issue number3
Publication statusPublished - 21-Sep-2001
Externally publishedYes



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