WFPC2 LRF Imaging of Emission Line Nebulae in 3CR radio galaxies

Show simple item record Privon, G. O'Dea, Christopher Baum, Stefi Axon, David Kharb, P. Buchanan, Catherine Sparks, William Chiaberge, Marco 2008-10-06T19:29:07Z 2008-10-06T19:29:07Z 2008-04-01
dc.identifier.citation Astrophysical Journal Supplement Series 175 (2008) 423-461 en_US
dc.description Also archived in: arXiv:0710.3105 v1 16 Oct 2007 en_US
dc.description.abstract We present HST/WFPC2 Linear Ramp Filter images of high surface brightness emission lines (either [OII], [OIII], or H +[NII]) in 80 3CR radio sources. We overlay the emission line images on high resolution VLA radio images (eight of which are new reductions of archival data) in order to examine the spatial relationship between the optical and radio emission. We confirm that the radio and optical emission line structures are consistent with weak alignment at low redshift (z < 0.6) except in the Compact Steep Spectrum (CSS) radio galaxies where both the radio source and the emission line nebulae are on galactic scales and strong alignment is seen at all redshifts. There are weak trends for the aligned emission line nebulae to be more luminous, and for the emission line nebula size to increase with redshift and/or radio power. The combination of these results suggests that there is a limited but real capacity for the radio source to influence the properties of the emission line nebulae at these low redshifts (z < 0.6). Our results are consistent with previous suggestions that both mechanical and radiant energy are responsible for generating alignment between the radio source and emission line gas. en_US
dc.language.iso en_US en_US
dc.publisher University of Chicago Press: Astrophysical Journal Supplement Series en_US
dc.relation RIT Scholars content from RIT Digital Media Library has moved from to RIT Scholar Works, please update your feeds & links!
dc.relation.ispartofseries vol. 175 en_US
dc.relation.ispartofseries no. 2 en_US
dc.relation.ispartofseries pps. 423-461 en_US
dc.title WFPC2 LRF Imaging of Emission Line Nebulae in 3CR radio galaxies en_US
dc.type Article en_US

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