The very low-brightness relic radio galaxy 1401-33
Open Access
- 1 June 1987
- journal article
- Published by Oxford University Press (OUP) in Monthly Notices of the Royal Astronomical Society
- Vol. 226 (4) , 979-988
- https://doi.org/10.1093/mnras/226.4.979
Abstract
The very unusual steep-spectrum low-brightness radio source 1401–33 has been imaged using the Very Large Array (VLA) at 1.49 GHz and the Molonglo Observatory Synthesis Telescope (MOST) at 0.843 GHz. The source has an angular size of 20×9 arcmin2 (240 × 110 kpc) and the spectral index lies in the range from – 1.2 to – 2.4. A compact radio source is associated with the 11.6-mag elliptical galaxy NGC 5419; it has been mapped at 14.92, 4.86 and 1.49 GHz with beams down to 0.6 arcsec and has no obvious connections with the extended source. The latter is most likely a relic radio galaxy, perhaps of the head-tail type, which is confined in the poor cluster around NGC 5419.Keywords
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