J/A+A/627/A108 Properties of COMP2CAT sources (Jimenez-Gallardo+, 2019)
COMP2CAT: hunting double-compact radio sources in the local Universe.
Jimenez-Gallardo A., Massaro F., Capetti A., Prieto M.A., Paggi A.,
Baldi R.D., Grossova R., Ostorero L., Siemiginowska A., Viada S.
<Astron. Astrophys. 627, A108 (2019)>
=2019A&A...627A.108J 2019A&A...627A.108J (SIMBAD/NED BibCode)
ADC_Keywords: Galaxy catalogs ; Galaxies, radio ; Velocity dispersion ;
Redshifts
Keywords: galaxies: active - galaxies: jets
Abstract:
We present a catalog of compact double radio galaxies (hereafter
COMP2CAT) listing 43 edge-brightened radio sources whose projected
linear size does not exceed 60 kpc, the typical size of their host
galaxies. This is the fifth in a series of radio source catalogs
recently created, namely: FRICAT, FRIICAT, FR0CAT, and WATCAT, each of
which focuses on a different class of radio galaxies. The main aim of
our analysis is to attain a better understanding of sources with
intermediate morphologies between FR IIs and FR 0s. COMP2CAT sources
were selected from an existing catalog of radio sources based on NVSS,
FIRST and SDSS observations because they have i) edge-brightened
morphologies typical of FR IIs, ii) redshifts z<0.15, and iii)
projected linear sizes smaller than 60kpc. With radio luminosities at
1.4GHz 1038<L1.4<1041erg/s, COMP2CAT sources appear as the low
radio luminosity tail of FR IIs. However, their host galaxies are
indistinguishable from those of large-scale radio sources: they are
luminous (-21>Mr>-24), red, early-type galaxies with black hole
masses in the range 107.5<MBH<109.5M☉. Moreover, all but
one of the COMP2CAT sources are optically classifiable as
low-excitation radio galaxies, in agreement with being the low radio
luminosity tail of FR Is and FR IIs. This catalog of compact double
sources, which is ∼47% complete at z<0.15, can potentially be used to
clarify the role of compact double sources in the general evolutionary
scheme of radio galaxies.
Description:
Characteristics of the 43 radio galaxies in COMP2CAT. For each galaxy,
we show equatorial coordinates, redshifts, fluxes and luminosities at
1.4GHz, flux densities at 0.15GHz, spectral indexes between 1.4GHz
and 0.15GHz, [OIII] fluxes, luminosities and equivalent widths,
r-band absolute magnitudes, u-r, w1-w2 and w2-w3 colors, concentration
indexes, Dn(4000) indexes, stellar velocity dispersions and their
errors, black hole masses, physical sizes and asymmetric indexes (as
described in the text). Luminosities, distances and sizes have been
computed adopting a flat cosmology with H0=69.6km/(s.Mpc),
OmegaM=0.286 and Omega_Lambda=0.714.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
tablec1.dat 315 43 Properties of COMP2CATsources
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Byte-by-byte Description of file: tablec1.dat
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Bytes Format Units Label Explanations
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1- 19 A19 --- SDSS Name from SDSS
21- 29 F9.5 deg RAdeg Right ascension (J2000.0)
31- 38 F8.5 deg DEdeg Declination (J2000.0)
40- 46 F7.5 --- z Redshift
48- 52 F5.1 mJy S1400 NVSS 1.4GHz flux density
54- 74 E21.16 10-7W L1400 NVSS 1.4GHz luminosity (in erg/s unit)
76- 81 F6.1 mJy S150 ?=- TGSS 0.15GHz flux density
83-101 F19.17 --- alpha ?=- Spectral index between 1.4 and 0.15GHz
103-116 F14.9 10-20W/m2 F[OIII] Flux density of [OIII]
(in 10-17erg/cm2/s)
118-139 E22.16 10-7W L[OIII] Luminosity of [OIII] luminosity
(in erg/s unit)
141-153 F13.8 0.1nm EW[OIII] Equivalent width [OIII]
155-173 F19.15 --- rMAG SDSS r-band absolute magnitude
175-183 F9.7 --- u-r SDSS u-r color index
185-197 F13.10 --- W1-W2 ?=- WISE W1-W2 color index
199-208 F10.8 --- W2-W3 ?=- WISE W2-W3 color index
210-227 F18.16 --- Cr Concentration index
229-236 F8.6 --- Dn4000 Dn(4000) index
238-245 F8.4 km/s Vdisp Stellar velocity dispersion
247-255 F9.6 km/s e_Vdisp Error of stellar velocity dispersion
257-274 F18.16 [Msun] logMbh Logarithm of black hole mass
276-293 F18.15 kpc Size Projected linear size
295-315 F21.19 --- A Assymetric index
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Acknowledgements:
Ana Jimenez-Gallardo, anaj1610(at)gmail.com
(End) Patricia Vannier [CDS] 23-Jun-2019