WATCAT. Wide-angle tailed radio galaxies

We present a catalog of 47 wide-angle tailed radio galaxies (WATs), the WATCAT, mainly built including a radio morphological classification; WATs were selected by combining observations from the National Radio Astronomy Observatory/Very Large Array Sky Survey (NVSS), the Faint Images of the Radio Sky at Twenty-Centimeters (FIRST), and the Sloan Digital Sky Survey (SDSS). We included in the catalog only radio sources showing two-sided jets with two clear "warmspots" (i.e., jet knots as bright as 20% of the nucleus) lying on the opposite side of the radio core, and having classical extended emission resembling a plume beyond them.

The catalog is limited to redshifts z<=0.15, and lists only sources with radio emission extended beyond 30kpc from the host galaxy. We found that host galaxies of WATCAT sources are all luminous (-20.5>=M_r_>=-23.7), red early-type galaxies with black hole masses in the range 10^8^<=M_BH_<=10^9^M_{sun}_. The spectroscopic classification indicates that they are all low-excitation galaxies (LEGs).