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A Giant radio source identified with a Markarian Galaxy
H.J.A. Rottgering,
Y. Tang,
M.A.R. Bremer,
A.G. de Bruyn,
G.K. Miley,
M.N. Bremer
Submitted 1994 15 September
1 Leiden Observatory, PO Box 9513, 2300 RA, Leiden, The Netherlands
2 Mullard Radio Astronomy Observatory, Cavendish Laboratory, Madingley Road, Cambridge, CB3
0HE
3 Institute of Astronomy, Madingley Road, Cambridge, CB3 OHA
4 Radio Sterrenwacht, Dwingeloo, Postbus 2, 7990 AA Dwingeloo, The Netherlands
5 Stichting Ruimte Onderzoek Nederland, Sorbonnelaan 2, 3584 CA Utrecht, The Netherlands
6 Kapteyn Astronomical Institute, Postbus 800, 9700 AV Groningen, The Netherlands
Abstract:
An FRII radio source with an angular extension of 18.4 arcminutes has been
discovered in the Westerbork Northern Sky Survey that is being carried out
at 325 MHz. This source is identified with Mrk 1498 at z = 0.056
indicating that its projected extension is 1.6 Mpc. The optical
spectrum of Mrk 1498 has the typical emission lines of a narrow line
radio galaxy: H_ is the only permitted line that has a faint
broad component. The discovery shows that the good sensitivity of WENSS
at low frequencies to low surface brightness features at scales of a
few minutes, is uniquely suited to provide well defined and relatively
large samples of giant radio galaxies. The future definition of such
samples will be important for our understanding of giant radio galaxies.
M.Bremer@sron.nl
Thu Apr 4 14:36:13 MET DST 1996