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Hubble space telescope near-infrared snapshot survey of 3CR radio source counterparts. II. An atlas and inventory of the host galaxies, mergers, and companions

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posted on 2023-06-08, 04:56 authored by David J E Floyd, David Axon, Stefi Baum, Alessandro Capetti, Marco Chiaberge, Duccio Macchetto, Juan Madrid, George Miley, Christopher P O'Dea, Eric Perlman, Alice Quillen, William Sparks, Grant Tremblay
We present the second part of an H-band (1.6 mu m) "atlas'' of z < 0.3 3CR radio galaxies, using the Hubble Space Telescope Near Infrared Camera and Multi-Object Spectrometer (HST NICMOS2). We present new imaging for 21 recently acquired sources and host galaxy modeling for the full sample of 101 (including 11 archival)-an 87% completion rate. Two different modeling techniques are applied, following those adopted by the galaxy morphology and the quasar host galaxy communities. Results are compared and found to be in excellent agreement, although the former breaks down in the case of sources with strong active galactic nuclei (AGNs). Companion sources are tabulated, and the presence of mergers, tidal features, dust disks, and jets are cataloged. The tables form a catalog for those interested in the structural and morphological dust-free host galaxy properties of the 3CR sample, and for comparison with morphological studies of quiescent galaxies and quasar host galaxies. Host galaxy masses are estimated and found to typically lie at around 2 x 10(11) M-circle dot. In general, the population is found to be consistent with the local population of quiescent elliptical galaxies, but with a longer tail to low Sersic index, mainly consisting of low-redshift (z < 0: 1) and low-radio-power (FR I) sources. A few unusually disky FR II host galaxies are picked out for further discussion. Nearby external sources are identified in the majority of our images, many of which we argue are likely to be companion galaxies or merger remnants. The reduced NICMOS data are now publicly available from our Web site.

History

Publication status

  • Published

File Version

  • Published version

Journal

Astrophysical Journal Supplement Series

ISSN

0067-0049

Publisher

Institute of Physics

Issue

1

Volume

177

Page range

148-173

Department affiliated with

  • Physics and Astronomy Publications

Full text available

  • Yes

Peer reviewed?

  • Yes

Legacy Posted Date

2012-02-06

First Open Access (FOA) Date

2016-03-22

First Compliant Deposit (FCD) Date

2017-03-14

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