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We searched for the optical counterparts for each of the newly discovered XRGs and ZRGs using the Sloan Digital Sky Survey (SDSS) knowledge catalogue (Gunn et al., 2006; Alam et al., 2015). The identification of the optical/IR counterpart of the winged radio galaxy was primarily based on the position of the optical/IR source relative to the radio galaxy morphology. In columns 3 and four of Desk 1 and Table 2, the positions of newly identified XRGs and ZRGs are talked about where the position of optical host galaxies are used when available. As is the case for the inverted information used to perform fielded searches on the contents of the bibliographic entries in our database (see section 3), each property table is decomposed in two elements, an index file and a listing file. In this part, we additionally define how we separate the XRGs and ZRGs from the entire winged candidate record. Proctor (2011) introduced a list of 156 XRG candidates by automated morphology detection process. The dialogue and conclusion are offered in section 5 and part 6 respectively. Section three accommodates the result of our search that includes the properties of XRGs and ZRGs. Depending on the place of the wings, the winged radio galaxies may very well be classified into two distinct teams – X-shaped 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 is dependent upon the radio contour levels (particularly the lowest 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, offers rise to an X-formed construction and named as X-formed radio galaxies (XRGs). Out of a total of 21 sources, optical/IR counterparts are discovered for 14 sources for XRGs (66 per cent). A complete of 33 winged sources are discovered, out of which 21 are XRGs, and the remaining 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 sixty eight are XRGs and 24 are ZRGs. Instance of six XRGs and ZRGs are offered in Determine 1 and Figure 2, respectively. The fundamental parameters of newly recognized XRGs and ZRGs are mentioned in Desk 1 and Desk 2 respectively. Optical counterparts are identified for 14 XRGs (67 per cent) and 12 ZRGs (a hundred per cent).

The statistical research are executed on the relative measurement of the main and minor axes and the angle between the main 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 accordance with this model, it’s believed that the secondary lobes are the remnants which can be leftover from a speedy realignment of the central supermassive black hole-accretion disk system (Dennett-Thorpe et al., 2002). it can be mentioned that the wings are due to the relic emission of the previously lively lobes (Rottmann, 2001) whose route of emission has been changed with time. When the secondary lobes appear to return out from the central core or close to the central area, we categorize these sources as X-shaped sources. We pointed out some extensively mentioned fashions- (i) Backflow of plasma (Leahy & Williams, 1984; Capetti et al., 2001): This mannequin suggests that the formation of wings in winged radio galaxies are due to the backflow of plasma from the central hotspot and this backflow happens when jet material is imagined to be launched by the hotspots after which streaming back towards the host galaxy.

Climates with lengthy and chilly winters that get quite a lot of sunshine could get the most out of a photo voltaic air heater. Twisted nematics get their identify as a result of they’re twisted of their natural state. The actual French fry is an American invention but received its identify based mostly on the origin nation of fried potatoes. The origin of the formation of wings (secondary jets) could be very mysterious and is required a really deep study. Jy for all photos to make a uniform research. SDSS photographs are overlaid with LOTSS DR1 photographs. With the help of the Very Massive Array (VLA), Faint Pictures of Radio Sources at Twenty cm (FIRST) survey at 1.Four GHz, Cheung (2007) offered a sample of one hundred winged sources. Twin AGN (Lal & Rao, 2005, 2007): In accordance with this mannequin the formation of wings is due to two pairs of jets are believed to be ejected from two unresolved AGNs in a unique direction.