Anisotropy and obscuration in the near-nuclear regions of powerful radio galaxies

Details Anisotropy and obscuration in the near-nuclear regions of powerful radio galaxies Anisotropy and obscuration in the near-nuclear regions of powerful radio galaxies

Jul 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004hst..prop10410t&link_type=abstract

HST Proposal ID #10410

Computer Science

Hst Proposal Id #10410 Agn/Quasars

Scientific paper

Despite the success of the orientation-based unified schemes for powerful radio sources, we are still far from understanding the distribution of obscuring material in the near-nuclear regions of such sources, and how this distribution evolves with radio power. Following on from our highly successful Cycle 7 pilot observations of Cygnus A, we propose a near-IR polarimetric survey of a complete sample of powerful radio galaxies in order map the near-nuclear illumination cones, and investigate the distribution of obscuring material on a 0.1 to 1kpc scale. In particular, the observations will allow us to test the "receding torus model'' which predicts that the opening angles of the illumination cones are smaller in low redshift/low power radio galaxies than in their high redshift/high power counterparts.We will also investigate whether AGN- and jet-driven outflows have a substantial effect on distribution of obscuring material by "hollowing out'' the quasar illumination cones in the more powerful sources. Finally, by using our polarization maps to search for signs of intrinsic anisotropy in the near-IR continuum within the cones, we will investigate the geometry of the near-IR continuum emitting regions close to the quasar nuclei. These observations are not only crucial for our understanding of radio source unification, but also provide key information about the effects of AGN-induced outflows on the ISM of the host galaxies.

Affiliated with

Also associated with

No associations

Rating

Anisotropy and obscuration in the near-nuclear regions of powerful radio galaxies 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 Anisotropy and obscuration in the near-nuclear regions of powerful radio galaxies, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Anisotropy and obscuration in the near-nuclear regions of powerful radio galaxies will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1011426