Core Concepts
The blazar PKS J2134-0153 exhibits possible periodic flux variations in its infrared and optical emissions, consistent with previously observed radio periodicity, suggesting a potential supermassive black hole binary (SMBHB) system.
Stats
The observed-frame period of the radio emission is 1760 ± 33 days.
The infrared periodicity is detected at 1.6(±0.4) × 103 days.
The optical periodicity is found to be 1.8(±1) × 103 days.
The optical emission lags behind the radio emission by (3.0 ± 2.3) × 102 days.
The infrared emission lags behind the radio emission by (3.3 ± 2.3) × 102 days.
The luminosity distance of PKS J2134-0153 is calculated based on its redshift (z = 1.285) and a ΛCDM cosmological model with Ωm = 0.27, ΩΛ = 0.73, and H0 = 70 km s-1 Mpc-1.
The rest-frame infrared luminosity at 1.5 μm is estimated to be 3.1 × 1046 erg s-1.
The rest-frame optical luminosities are estimated to be 1.4 × 1046 erg s-1 at 2087 Å, 1.7 × 1046 erg s-1 at 2727 Å, and 1.8 × 1046 erg s-1 at 3000 Å.
The bolometric luminosity of the AGN disk is estimated to be 9.0 × 1046 erg s-1.