The Discovery of 63 Giant Radio Galaxies in FIRST using DRAGN-hunter

A catalog of 63 giant radio galaxies (GRGs) identified in the FIRST survey using the DRAGN-hunter algorithm. Included here are the table of GRGs (in votable format; described below) and a tarball containing images for all 63 sources. These images consist of radio contours from FIRST overlaid on grz optical images from LS DR9, with the position of the identified host marked by a green circle.

Table descriptionColumns [unit]:

Name, Name of the host galaxy (1)
RAJ2000 [deg], R.A. of the host galaxy
DEJ2000 [deg], Decl. of the host galaxy
rmag [mag], r-band magnitude of the host galaxy
z, Redshift of the host galaxy
zType, Photometric or spectroscopic redshift (2)
SFIRST [mJy], Flux density in FIRST
logLFIRST [W/Hz], log10 of 1.4GHz luminosity
LAS [arcsec], Largest Angular Size
LLS [Mpc], Largest Linear Size (3)
Notes:

uncertain hosts are chosen to yield the lower of several possible redshifts; SDSS J010931.12-023723.8 is the central of three potential host galaxies at similar redshifts and blended into WISEA J010930.98-023722.0 
p = photometric redshift from 2022MNRAS.512.3662Ds = spectroscopic redshift from SDSS DR16 (2020ApJS..249....3A) 
based on H_0_=70 km/s/Mpc, Omega_m_=0.3, Omega_Lambda_=0.7