{ "id": "1703.03427", "version": "v1", "published": "2017-03-09T19:11:13.000Z", "updated": "2017-03-09T19:11:13.000Z", "title": "FRII{\\sl{CAT}}: A FIRST catalog of FR~II radio galaxies", "authors": [ "A. Capetti", "F. Massaro", "R. Baldi" ], "comment": "21 pages, 6 Figures, ! Table, 1 Appendix, Accepted for publication on A&A (pre-proof version)", "doi": "10.1051/0004-6361/201630247", "categories": [ "astro-ph.HE", "astro-ph.GA" ], "abstract": "We built a catalog of 122 FR~II radio galaxies, called FRII{\\sl{CAT}}, selected from a published sample obtained by combining observations from the NVSS, FIRST, and SDSS surveys. The catalog includes sources with redshift $\\leq 0.15$, an edge-brightened radio morphology, and those with at least one of the emission peaks located at radius $r$ larger than 30 kpc from the center of the host. The radio luminosity at 1.4 GHz of the \\FRII\\ sources covers the range $L_{1.4} \\sim 10^{39.5} - 10^{42.5}$ $\\ergs$. The \\FRII\\ catalog has 90\\% of low and 10\\% of high excitation galaxies (LEGs and HEGs), respectively. The properties of these two classes are significantly different. The FRII{\\sl{CAT}} LEGs are mostly luminous ($-20 \\gtrsim M_r \\gtrsim -24$), red early-type galaxies with black hole masses in the range $10^8 \\lesssim M_{\\rm BH} \\lesssim 10^9 M_\\odot$; they are essentially indistinguishable from the FR~Is belonging to the FRI{\\sl{CAT}}. The HEG FR~IIs are associated with optically bluer and mid-IR redder hosts than the LEG FR~IIs and to galaxies and black holes that are smaller, on average, by a factor $\\sim$2. FR~IIs have a factor $\\sim$ 3 higher average radio luminosity than FR~Is. Nonetheless, most ($\\sim 90$ \\%) of the selected FR~IIs have a radio power that is lower, by as much as a factor of $\\sim$100, than the transition value between FR~Is and FR~IIs found in the 3C sample. The correspondence between the morphological classification of FR~I and FR~II and the separation in radio power disappears when including sources selected at low radio flux thresholds, which is in line with previous results. In conclusion, a radio source produced by a low power jet can be edge brightened or edge darkened, and the outcome is not related to differences in the optical properties of the host galaxy.", "revisions": [ { "version": "v1", "updated": "2017-03-09T19:11:13.000Z" } ], "analyses": { "keywords": [ "radio galaxies", "first catalog", "low radio flux thresholds", "higher average radio luminosity", "black hole" ], "tags": [ "journal article" ], "note": { "typesetting": "TeX", "pages": 21, "language": "en", "license": "arXiv", "status": "editable" } } }