We searched for the optical counterparts for each of the newly discovered XRGs and ZRGs using the Sloan Digital Sky Survey (SDSS) data catalogue (Gunn et al., 2006; Alam et al., 2015). The identification of the optical/IR counterpart of the winged radio galaxy was based on the position of the optical/IR source relative to the radio galaxy morphology. In columns three and 4 of Table 1 and Desk 2, the positions of newly recognized XRGs and ZRGs are mentioned where the position of optical host galaxies are used when available. As is the case for the inverted files used to carry out fielded searches on the contents of the bibliographic entries in our database (see section 3), each property desk is decomposed in two components, an index file and an inventory file. On this part, we also define how we separate the XRGs and ZRGs from the full winged candidate record. Proctor (2011) offered an inventory of 156 XRG candidates by automated morphology detection course of. The dialogue and conclusion are presented in part 5 and section 6 respectively. Part three accommodates the results of our search that features the properties of XRGs and ZRGs. Relying on the place of the wings, the winged radio galaxies may very well be categorized into two distinct groups – X-formed radio galaxies (XRGs) and Z-formed radio galaxies (ZRGs).

3C 272.1 is the primary recognized winged source that has Z-formed morphology (Riley, 1972). Ekers et al. The morphology of sources relies on the radio contour ranges (especially the bottom contour) and the signal to noise. 0.5), which is typical of lobe dominated radio galaxies. In some instances, it originated from near the central core of the galaxy and aligns with the first jets, provides rise to an X-shaped construction and named as X-formed radio galaxies (XRGs). Out of a total of 21 sources, optical/IR counterparts are found for 14 sources for XRGs (66 per cent). A complete of 33 winged sources are found, out of which 21 are XRGs, and the remainder 12 are ZRGs. Using The TIFR GMRT Sky Survey (TGSS) at one hundred fifty MHz, Bhukta, Pal & Mondal (2020) detected ninety two winged sources out of which 68 are XRGs and 24 are ZRGs. Instance of six XRGs and ZRGs are presented in Determine 1 and Determine 2, respectively. The essential parameters of newly identified XRGs and ZRGs are talked about in Desk 1 and Desk 2 respectively. Optical counterparts are recognized for 14 XRGs (67 per cent) and 12 ZRGs (100 per cent).

The statistical studies are carried out on the relative size of the key and minor axes and the angle between the most important axis and minor axis for XRGs. This alteration within the spin axis may be the rationale for producing the secondary lobes for the radio galaxy (Gopal-Krishna, Biermann & Witta, 2003; Zier, 2005). (iii) Precession of jets (Rottmann, 2001; Dennett-Thorpe et al., 2002): In response to this model, it is believed that the secondary lobes are the remnants which might be leftover from a fast realignment of the central supermassive black gap-accretion disk system (Dennett-Thorpe et al., 2002). it can also be said that the wings are because of the relic emission of the beforehand energetic lobes (Rottmann, 2001) whose path of emission has been modified with time. When the secondary lobes appear to return out from the central core or close to the central region, we categorize these sources as X-shaped sources. We identified some widely mentioned fashions- (i) Backflow of plasma (Leahy & Williams, 1984; Capetti et al., 2001): This mannequin means that the formation of wings in winged radio galaxies are because of the backflow of plasma from the central hotspot and this backflow happens when jet material is purported to be released by the hotspots after which streaming back in direction of the host galaxy.

Climates with lengthy and chilly winters that get a variety of sunshine could get essentially the most out of a photo voltaic air heater. Twisted nematics get their name as a result of they are twisted in their pure state. The precise French fry is an American invention however acquired its title based mostly on the origin country of fried potatoes. The origin of the formation of wings (secondary jets) could be very mysterious and is required a very deep research. Jy for all pictures to make a uniform research. SDSS pictures are overlaid with LOTSS DR1 photos. With the help of the Very Massive Array (VLA), Faint Photos of Radio Sources at Twenty cm (FIRST) survey at 1.4 GHz, Cheung (2007) introduced a sample of a hundred winged sources. Twin AGN (Lal & Rao, 2005, 2007): According to this model the formation of wings is due to two pairs of jets are believed to be ejected from two unresolved AGNs in a special direction.