2004AJ....127...48L


Query : 2004AJ....127...48L

2004AJ....127...48L - Astron. J., 127, 48-52 (2004/January-0)

Hydra A at low radio frequencies.

LANE W.M., CLARKE T.E., TAYLOR G.B., PERLEY R.A. and KASSIM N.E.

Abstract (from CDS):

We present new, low-frequency images of the powerful FR I radio galaxy Hydra A (3C 218). 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 even 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). In addition, 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. We measure overall spectral indices α33074=-0.83 and α1415330=-0.89.

Abstract Copyright:

Journal keyword(s): Galaxies: Active - Galaxies: Clusters: Individual: Name: Abell 780 - Galaxies: Individual: Alphanumeric: 3C 218 - Galaxies: Jets - radio continuum: galaxies

Simbad objects: 7

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Number of rows : 7
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024
#notes
1 3C 84 Sy2 03 19 48.1599902040 +41 30 42.108850836   13.10 12.48 11.09   ~ 4007 3
2 ICRF J054236.1+495107 Sy1 05 42 36.13789710 +49 51 07.2337139   18.45 17.80 17.210   ~ 1493 1
3 NAME Hya A LIN 09 18 05.66848602 -12 05 43.8060823   14.38 14.8     ~ 1011 1
4 ACO 780 ClG 09 18 30 -12 15.7           ~ 453 0
5 M 87 AGN 12 30 49.42338414 +12 23 28.0436859 10.16 9.59 8.63   7.49 ~ 7190 3
6 3C 286 Sy1 13 31 08.2883506368 +30 30 32.960091564   17.51 17.25     ~ 4341 2
7 NAME Cyg A Sy2 19 59 28.35656837 +40 44 02.0972325   16.22 15.10     ~ 2367 2

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