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Spins of SMBHs in distant low luminosity AGNs

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arxiv 2506.22207 v1 pith:RNZ7WNGQ submitted 2025-06-27 astro-ph.HE astro-ph.GA

Spins of SMBHs in distant low luminosity AGNs

classification astro-ph.HE astro-ph.GA
keywords spinestimatedagnsmassobjectsvaluesdistantluminosity
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We estimated radiative efficiency, spin and SMBH mass values for sample of 33 distant low luminosity AGNs. The distribution of the estimated spin values (majority of objects have a spin greater than 0.8) is fairly typical for many types of AGNs. The dependence of the estimated spin values on the estimated SMBH masses shows strong correlation between them, which suggests a rapid increase in spin with mass, i.e. that the main mechanism of mass growth in this case is disk accretion. We did not find any significant qualitative differences in the spin characteristics between our objects and objects of other types considered in the paper.

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Cited by 1 Pith paper

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  1. Estimation of black hole spins in low-mass AGNs and comparison with other types of AGNs

    astro-ph.HE 2026-06 unverdicted novelty 3.0

    Spins of low-mass AGN black holes decrease with mass, supporting mergers or chaotic accretion as growth mechanisms and suggesting an evolutionary sequence where spins first decrease then slowly increase.