VLA observations of the radio galaxy Hydra A (3C 218)
Journal Article
·
· Astrophysical Journal; (USA)
- California Univ., Los Angeles (USA) National Radio Astronomy Observatory, Socorro, NM (USA) Nobeyama Radio Observatory, Minamimaki (Japan) Utsunomiya Univ. (Japan)
An extensive series of observations of the radio galaxy Hydra A using the VLA is reported. The radio emission consists of two components: (1) a pair of well-collimated, curved jets with S-symmetry, each of which makes a turn through about 40 deg between the core and the lobe, and (2) diffuse radio lobes, also rotation-symmetric, although straighter, which extend north out to 5 arcmin (420 kpc) and south out to 3 arcmin (250 kpc). Rotation measures (RMs) ranging from -1000 to +3300 rad/sq m are found in the northern lobe with gradients in the RM of up to 1000 rad/sq m/arcsec. In the southern lobe the RM gradients are probably in excess of + or - 3750 rad/sq m, the maximum value that can be unambiguously determined here. 48 refs.
- OSTI ID:
- 6405809
- Journal Information:
- Astrophysical Journal; (USA), Journal Name: Astrophysical Journal; (USA) Vol. 360; ISSN ASJOA; ISSN 0004-637X
- Country of Publication:
- United States
- Language:
- English
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