HUBBLE-SPACE-TELESCOPE OBSERVATIONS OF OBSCURATION RINGS IN HERCULES-A - IMPLICATIONS FOR ENERGY-TRANSPORT IN POWERFUL RADIO GALAXIES

Authors
BAUM SA ODEA CP DEKOFF S SPARKS W HAYES JJE LIVIO M GOLOMBEK D
Citation
Sa. Baum et al., HUBBLE-SPACE-TELESCOPE OBSERVATIONS OF OBSCURATION RINGS IN HERCULES-A - IMPLICATIONS FOR ENERGY-TRANSPORT IN POWERFUL RADIO GALAXIES, The Astrophysical journal, 465(1), 1996, pp. 5
Citations number
17
Categorie Soggetti
Astronomy & Astrophysics
Journal title
The Astrophysical journal → ACNP
ISSN journal
0004637X
Volume
465
Issue
1
Year of publication
1996
Part
2
Database
ISI
SICI code
0004-637X(1996)465:1<5:HOOORI>2.0.ZU;2-5
Abstract
We have used the Hubble Space Telescope to obtain snapshot images of H ercules A, the host galaxy to the powerful radio source 3C 348, throug h a broadband red filter. We report the discovery of interlocking, kil oparsec-scale rings of obscuration aligned near the radio axis and sli ghtly offset from the galaxy's nucleus. We discuss possible models for these rings and their implications for models of energy transport in extragalactic radio jets.