COSMOS 3 GHz AGN Catalog Definitions
Overview
The VLA-COSMOS 3 GHz AGN catalog includes classification and selected physical properties
for the 3 GHz radio sample with optical/NIR counterparts (7 903
sources in total). For more information see Delvecchio et al. (2017).
| Name |
Intype |
Units |
Description |
| ID_VLA3 |
int |
|
Identification number of the radio source |
| ra |
double |
deg |
Right Ascension (J2000) |
| dec |
double |
deg |
Declination (J2000) |
| Z_BEST |
float |
|
Best redshift available |
| Z_TYPE |
char |
|
Origin of the redshift: "spec" where available, "phot" otherwise |
| FLUX_INT_3GHz |
double |
microJy |
3 GHz integrated radio flux density |
| Lradio_10cm |
double |
log W/Hz |
3 GHz rest-frame radio luminosity |
| Lradio_21cm |
double |
log W/Hz |
1.4 GHz rest-frame radio luminosity |
| L_TIR_SF |
double |
log L_sun |
Infrared luminosity (8-1000 micron rest-frame) from star formation.
If the source is classified
as HLAGN, this value represents the fraction of the
total infrared luminosity arising from star formation, while
it corresponds to the total IR luminosity otherwise. |
| flag_herschel3 |
char |
|
Flag for Herschel detection at ≥ 3 sigma in at least one band |
| Mstar |
double |
log M_sun |
Stellar mass derived from SED-fitting decomposition.
The value is drawn from the fit with AGN if the
source is classified as HLAGN, and from the fit without AGN
otherwise. Calculated with a Chabrier (2003) IMF. |
| SFR_IR |
double |
M_sun/yr |
Star formation rate obtained from the total
infrared luminosity listed in column (9), by assuming the
Kennicutt (1998) conversion factor, and scaled to a Chabrier
(2003) IMF. |
| NUV_R |
double |
mag |
NUV-r rest-frame color (AB mag) obtained from the best-
fitting galaxy template |
| XRAY_AGN |
int |
|
X-ray AGN: 1 if true, 0 otherwise |
| MIR_AGN |
int |
|
MIR AGN: 1 if true, 0 otherwise |
| SED_AGN |
int |
|
SED AGN: 1 if true, 0 otherwise |
| Radio_excess |
int |
|
Radio excess: 1 if true, 0 otherwise |
| Class |
char |
|
Class: moderate to high radiative luminosity AGN
(HLAGN), low to moderate radiative luminosity AGN
(MLAGN), or neither of the two (empty space). A source
is classified as HLAGN if (14)=1 or (15)=1 or (16)=1, while
it is classified as MLAGN if (14,15,16)=(0,0,0) and (17)=1. |