A precessing jet from a supermassive black hole: Multi-wavelength observations of S5 1044+71 — E8 Intelligence Research

The bright γ-ray blazar S5 1044+71 has been identified as showing very significant quasi-periodic oscillations in the Fermi-LAT data in recent studies, with a periodicity of about three years. With the completion of a new three-year γ-ray cycle, we aim to revisit the periodicity in Fermi-LAT data, and analyze all available multi-wavelength (MWL) data to search for possible correlations and time-lags. These observations will be used to test for the compatibility of the observed periodicity with a precessing jet from the supermassive black hole powering the blazar. We analyze data from Fermi-LAT (γ-rays), NuSTAR, Swift-XRT, and AstroSat-SXT (X-rays), Swift-UVOT, AstroSat-UVIT, ASAS-SN, ZTF, Pan-STARRS (ultraviolet and optical), and NEOWISE (infrared). In addition we present an analysis from historical observations from the Palomar and Pulkovo observations. Single-band spectral variability, MWL correlations, and cross-correlations are computed. We then model the Fermi-LAT light curve with Author: Andrew Stewart Caldin, Independent Researcher, UK. Part of the E8 Intelligence Research series. Platform: e8intelligence.com