J/ApJ/723/1119 Optical properties of radio galaxies at z<0.3 (Lin+, 2010)
On the populations of radio galaxies with extended morphology at z < 0.3.
Lin Y.-T., Shen Y., Strauss M.A., Richards G.T., Lunnan R.
<Astrophys. J., 723, 1119-1138 (2010)>
=2010ApJ...723.1119L 2010ApJ...723.1119L
ADC_Keywords: Galaxies, radio ; Morphology ; Photometry, SDSS ;
Active gal. nuclei ; Radio continuum
Keywords: galaxies: active - galaxies: elliptical and lenticular, cD -
radio continuum: galaxies
Abstract:
Extended extragalactic radio sources have traditionally been
classified into Fanaroff & Riley (FR) I and II types, based on the
ratio rs of the separation S between the brightest regions on either
sides of the host galaxy and the total size T of the radio source
(rs∼S/T). In this paper, we examine the distribution of various
physical properties as a function of rs of 1040 luminous (L≳L*)
extended radio galaxies (RGs) at z<0.3 selected with well-defined
criteria from the SDSS (Strauss et al. 2002AJ....124.1810S 2002AJ....124.1810S), NVSS
(Condon et al. 1998, Cat. VIII/65), and FIRST (Becker et al. 1995+,
Cat. VIII/71) surveys. About 2/3 of the RGs are lobe dominated (LD)
and 1/3 have prominent jets. If we follow the original definition of
the FR types, i.e., a division based solely on rs, FRI and FRII RGs
overlap in their host galaxy properties.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table4.dat 103 1040 Basic properties of radio galaxies
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See also:
II/306 : The SDSS Photometric Catalog, Release 8 (Adelman-McCarthy+, 2011)
III/255 : Spectroscopy of SDSS Data Release (SDSS-DR6) (ARC, 2007)
VIII/71 : The FIRST Survey Catalog, Version 03Apr11 (Becker+ 2003)
VIII/65 : 1.4GHz NRAO VLA Sky Survey (NVSS) (Condon+ 1998)
J/MNRAS/415/1013 : FR II radio galaxies in SDSS (Koziel-Wierzbowska+, 2011)
J/MNRAS/404/1719 : Combined NVSS-FIRST galaxies (CoNFIG) sample II (Gendre+,
2010)
J/ApJ/699/L43 : FIRST-NVSS-SDSS AGN sample catalog (Smolcic+, 2009)
J/ApJS/179/306 : Radio galaxy morphologies (Russell+, 2008)
J/MNRAS/390/819 : CoNFIG sample (Gendre+, 2008)
http://www.mpa-garching.mpg.de/SDSS/DR7/ : MPA-JHU DR7 spectrum measurements
http://sdss.physics.nyu.edu/vagc/ : NYU Value-Added Galaxy Catalog
http://www.sdss.org/ : SDSS home page
Byte-by-byte Description of file: table4.dat
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Bytes Format Units Label Explanations
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1- 18 A18 --- ObjId SDSS identification number
20- 26 I7 --- VAGC NYU VAGC DR6 object number
28 A1 --- Class [a-e] Class (1)
30- 39 F10.6 deg RAdeg Right Ascension in decimal degrees (J2000)
41- 50 F10.6 deg DEdeg Declination in decimal degrees (J2000)
52- 57 F6.4 --- z SDSS redshift
59- 63 F5.2 [W/Hz] logP1.4 Log of the 1.4GHz power
65- 71 F7.3 mag r0.1Mag Absolute SDSS r band magnitude (2)
73- 75 I3 km/s sigma Stellar velocity dispersion (3)
77- 80 F4.1 kpc Reff Effective radius
82- 85 I4 kpc T Total physical size
87- 90 F4.2 --- rs Ratio of separation and total size (4)
92- 98 F7.3 10+6Lsun LOIII ? The [OIII](5007Å) line luminosity
100-103 F4.1 --- Sig0.5 Excess number of neighbors within 0.5Mpc
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Note (1): Classification, as in table 1 (with S = the angular separation between
the highest surface brightness (HSB) spots on either sides of the
galaxy), as follows:
a = HSB spots: opposite sides of RG; Central source: not HSB; S: distance
between two HSB spots; Number: 667 = Fraction: 64.1%
b = HSB spot: center; Central source: extended, ≥0.1ftot; S: size of the
HSB spot; Number: 289 = fraction: 27.7%
c = HSB spot: center; Central source: extended, <0.1ftot; S: Distance
between secondary HSB spots; Number: 38 = Fraction: 3.6%
d = HSB spot: center; Central source: compact, ≥0.3ftot; S: Distance
between secondary HSB spots; Number: 9 = Fraction: 0.9%
e = HSB spot: center; Central source: compact, <0.3ftot; S: Distance between
secondary HSB spots; Number: 37 = Fraction: 3.6%
See section 3 for further details.
Note (2): Where the r band has been shifted blueward by a factor of 1.1
in wavelength.
Note (3): A zero sigma value indicates that SDSS didn't measure the redshift
for the object, and we used the redshift from the nearest neighbor
with a spectrum.
Note (4): The separation between the brightest regions on either sides of the
host galaxy and the total size of the radio source (rs=S/T).
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History:
From electronic version of the journal
(End) Greg Schwarz [AAS], Emmanuelle Perret [CDS] 25-Jul-2012