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تسجيل مستخدم جديدSearch for hybrid morphology radio galaxies from FIRST survey at 1400 MHz
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Hybrid Morphology Radio Sources (HyMoRS) are a very rare and newly discovered subclass of radio galaxies that have mixed FR morphology i.e., these galaxies have FR-I structure on one side of the core and FR-II structure on the other side of the core. We systematically searched for HyMoRS using VLA Faint Images of the Radio Sky at Twenty-cm (FIRST) survey at 1400 MHz and identified forty-five confirmed HyMoRS and five candidates HyMoRS. Our finding significantly increased the known sample size of HyMoRS. HyMoRS may play an essential role in understanding the interaction of jets with the interstellar medium and a very debated topic of the FR dichotomy. We identified optical/IR counterparts for thirty-nine sources in our catalogue. In our sample of sources, five sources had Quasar-like behavior. We had estimated the spectral index and radio luminosity of HyMoR sources in our catalogue, when possible. We found that the source J1336+2329 ($log L=26.93$ W Hz$^{-1}$sr$^{-1}$) was the most luminous and the source J1204+3801, a Quasar, was the farthest HyMoRS (with redshift $z$=1.28) in our sample. With the help of a large sample size of the newly discovered sources, various statistical properties were studied.
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