Search for X/Z Shaped Radio Sources from TGSS ADR 1
  A small sub-class of radio galaxies that exhibit a pair of secondary low
surface brightness radio lobes oriented at an angle to the primary high surface
brightness lobes are known as X-shaped radio galaxies (XRGs). In cases, it is
seen that the less luminous secondary lobes emerged from the edges of the
primary high brightened lobes and thus gives a Z-symmetric morphology. These
are known as Z-shaped radio galaxies (ZRGs). From the TIFR GMRT Sky Survey at
150 MHz, we present a systematic search result for XRGs and ZRGs. We identified
a total of 92 radio sources, out of which 68 are XRGs and 24 are ZRGs. Taking
advantage of the large sample size of the newly discovered XRGs and ZRGs,
various statistical properties of these sources are studied. Out of 68 XRGs
presented in the current paper, 21 percent (14) are FR I and 41 percent (28)
are FR II radio galaxies. For 26 XRGs, the morphology is so complex that they
could not be classified.
  We have estimated radio luminosity and spectral index of newly discovered
radio galaxies and made a comparative study with previously detected XRGs and
ZRGs. For XRGs, the average value of luminosities is higher than that of ZRGs.
Optical/IR counterparts are identified for 33 out of 68 XRGs and 19 out of 24
ZRGs using different available literature.
