Hydra A: A New Picture

Details Hydra A: A New Picture Hydra A: A New Picture

Dec 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003aas...203.4704l&link_type=abstract

American Astronomical Society Meeting 203, #47.04; Bulletin of the American Astronomical Society, Vol. 35, p.1281

Astronomy and Astrophysics

Astronomy

Scientific paper

We present new, low-frequency images of the powerful FR I radio galaxy Hydra A (3C 218), which lies at the center of the poor Abell cluster A780. Images were made with the Very Large Array at frequencies of 1415, 330, and 74 MHz, with resolutions on the order of 20''. The morphology of the source is seen to be more complex and larger than previously known, and extends nearly 8'(530 kpc) in a North-South direction. The southern lobe is bent to the east and extends in that direction for nearly 3'(200 kpc). We find that the northern lobe has a flatter spectral slope than the southern lobe, consistent with the appearance of greater confinement to the south.

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