Hydra A at Low Radio Frequencies

Details Hydra A at Low Radio Frequencies Hydra A at Low Radio Frequencies

2003-09-23

arxiv.org/abs/astro-ph/0309647v1

Astronomy and Astrophysics

Astrophysics

11 pages, 6 figures, accepted for publication in the Astronomical Journal, January 2004

Scientific paper

10.1086/379858

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 (VLA) 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 \alpha^{330}_{74} = -0.83 and \alpha^{1415}_{330} = -0.89.

Affiliated with

Also associated with

No associations

Rating

Hydra A at Low Radio Frequencies does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Hydra A at Low Radio Frequencies, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hydra A at Low Radio Frequencies will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-509335