Hybrid Morphology Radio Sources from the MeerKAT Absorption Line Survey (MALS): Radio, Mid-infrared and Environmental Characteristics
Souvik Manik, Shobha Kumari, Netai Bhukta, Sabyasachi Pal, Sushanta K. Mondal
arXiv:2506.20211v2 Announce Type: replace
Abstract: Hybrid morphology radio sources (HyMoRSs) are a rare subclass of radio galaxies that display a Fanaroff-Riley type I (FR I) morphology on one side of the central supermassive black hole (SMBH) and a type II (FR II) morphology on the other. In this study, we report the discovery of thirty-six new HyMoRSs, marking the largest collection of such sources in the southern sky to date, using data obtained from the MeerKAT absorption line survey (MALS). The identified HyMoRSs exhibit moderate radio luminosities in the range 9.9 $times 10^{23}$ to 5.7 $times 10^{25}~mathrm{W.Hz^{-1}}$, with a median value of 4.4 $times 10^{24}~mathrm{W.Hz^{-1}}$ at 1.4 GHz, and are located within the redshift range 0.04$
Abstract: Hybrid morphology radio sources (HyMoRSs) are a rare subclass of radio galaxies that display a Fanaroff-Riley type I (FR I) morphology on one side of the central supermassive black hole (SMBH) and a type II (FR II) morphology on the other. In this study, we report the discovery of thirty-six new HyMoRSs, marking the largest collection of such sources in the southern sky to date, using data obtained from the MeerKAT absorption line survey (MALS). The identified HyMoRSs exhibit moderate radio luminosities in the range 9.9 $times 10^{23}$ to 5.7 $times 10^{25}~mathrm{W.Hz^{-1}}$, with a median value of 4.4 $times 10^{24}~mathrm{W.Hz^{-1}}$ at 1.4 GHz, and are located within the redshift range 0.04$
2025-10-30
