Follow-up on the Supermassive Black Hole Binary Candidate J1048+7143: Successful Prediction of the Next Gamma-ray Flare and Refined Binary Parameters in the Framework of Jet Precession Model

2023/11/07 by Emma Kun, Kun, Emma, Ilja Jaroschewski +15 · 1 citation
Mathematics · Medicine · Physics and Astronomy · #Astrophysical Phenomena and Observations #Astrophysics #Binary black hole #Binary number #FOS: Physical sciences #Galaxy #General Relativity and Quantum Cosmology (gr-qc) #High Energy Astrophysical Phenomena (astro-ph.HE) #Mathematics #Physics #Pulsars and Gravitational Waves Research #Streptococcal Infections and Treatments #Supermassive black hole

paper · pdf · doi:10.48550/arxiv.2311.03924

openalex publication_date 2023/11/07 · openalex created_date 2023/11/09 · openalex updated_date 2026/07/28

Abstract

Analyzing single-dish and VLBI radio, as well as Fermi-LAT γ-ray observations, we explained the three major flares in the γ-ray light curve of FSRQ J1048+7143 with the spin--orbit precession of the dominant mass black hole in a supermassive black hole binary system. Here, we report on the detection of a fourth γ-ray flare from J1048+7143, appearing in the time interval which was predicted in our previous work. Including this new flare, we constrained the mass ratio into a narrow range of 0.062

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