2023/02/17 by E. Nihal Ercan, Ercan, E. N., Çalışkan, E. Aktekin +4
Physics and Astronomy · Engineering · #Astrophysical Phenomena and Observations #Pulsars and Gravitational Waves Research #Mechanics and Biomechanics Studies
paper · pdf · doi:10.48550/arxiv.2302.08994
We report the observation of a possible optical counterpart to the recently discovered X-ray source NuSTAR J053449+2126.0 (J0534 in short). We observed the source location using the 1.5-m Telescope (RTT150) to search for an optical counterpart, and detected a possible optical counterpart and analysed its spectrum using the B, V, R, and I images of J0534, and found that the possible optical counterpart of J0534 is likely to be a long-known optical source, namely PSO J083.7063+21.4333. However, this source has been misclassified as a star rather than being an extragalactic source. We determined the source distance accurately for the first time based on our spectral analysis. J0534 could be a high-redshift (z≃2.2) member of an Active Galactic Nucleus (AGN) sub-group identified as quasars. Our analysis favours an accreting black hole of mass ∼ 7× 108 M\odot as a power supply for the quasar. Further observations in optical and other wavelengths are needed to confirm its precise nature.