SOARing into a triple-peaked puzzle: A peculiar OI?11297 profile in a NLSy1

We report the detection of a remarkably asymmetric profile in the broad OI ?11297 emission line of the NLSy1 galaxy 2MASX J05014863–2253232, based on near-infrared spectroscopy with the TripleSpec-4 instrument on the SOAR telescope from 2022 to 2024.The profile exhibits three distinct peaks, with the blue and red components resembling double-peaked emissions often linked to disk-like structures in evolved AGNs. This challenges the coplanar cloud model of the broad-line region (BLR) in NLSy1 galaxies, suggesting that the BLR may exhibit complex kinematics, potentially shaped by non-standard geometry or dynamic processes. The three-peak structure was observed consistently across epochs, with slight temporal variability in the blue and red components. This case underscores the diagnostic power of SOAR spectroscopy for AGN monitoring and motivates future efforts to explore the unusual BLR structure in NLSy1 galaxies.