Pen-Nuclear Regions of Radio Galaxies (continued)

Details Pen-Nuclear Regions of Radio Galaxies (continued) Pen-Nuclear Regions of Radio Galaxies (continued)

Jul 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992hst..prop.3667s&link_type=abstract

HST Proposal ID #3667

Physics

Hst Proposal Id #3667

Scientific paper

In our original Cycle 1 proposal, we carefully picked 3 of the nearest radio galaxies to observe with the HST PC. Recent ground-based observations have shown that these galaxies are excellent candidates to use as test cases for theories which describe the nuclear "feeding" process in active galaxies. We were rescheduled to observe only one of these objects in one color during Cycle 1. This is Pictor A (PKS 0518-24), which is THE closest BLRG known. Its proximity and very bright nuclear emission lines allow us to use the HST, in its present form, to resolve the inner 40 to 50 pc near the nucleus where the transition between the VLBI/Broad Emission Line region and the Narrow Emission Line region takes place. We are requesting time in Cycle 2 to obtain enough multi-band images of Pictor A to differentiate between peri-nuclear structures which arise from star-forming regions and those which are signatures of gravitationally-induced nuclear inflow. We plan to follow up these imaging observations with HST UV spectroscopy during Cycle 3.

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