The very low-brightness relic radio galaxy 1401-33

Details The very low-brightness relic radio galaxy 1401-33 The very low-brightness relic radio galaxy 1401-33

Jun 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987mnras.226..979g&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 226, June 15, 1987, p. 979-988.

Astronomy and Astrophysics

Astronomy

15

Astronomical Maps, Brightness Distribution, Elliptical Galaxies, Galactic Evolution, Radio Galaxies, Astronomical Spectroscopy, Very Large Array (Vla)

Scientific paper

The very unusual steep-spectrum low-brightness radio source 1401-33 has been imaged using the Very Large Array at 1.49 GHz and the Molonglo Observatory Synthesis Telescope 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.

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