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A Possible Correlation Between the Luminosities and Lifetimes of Active Galactic Nuclei

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arxiv astro-ph/0505210 v1 pith:4VOGV6O5 submitted 2005-05-10 astro-ph

classification astro-ph
keywords brightfainthalosluminositysimilarabundancesactiveargument
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We use the clustering of galaxies around distant AGN to show with ~90% confidence that fainter AGN are longer lived. Our argument is simple: since the measured galaxy-AGN cross-correlation length r_0 ~ 5h^-1 Mpc does not vary significantly over a 10 magnitude range in AGN optical luminosity, faint and bright AGN must reside in dark matter halos with similar masses. The halos that host bright and faint AGN therefore have similar intrinsic abundances, and the large observed variation in AGN number density with luminosity reflects a change in duty cycle.

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Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Clustering of high-redshift quasars with DESI DR2

    astro-ph.CO 2026-06 unverdicted novelty 7.0 of 10

    DESI DR2 quasar sample yields bias b_Q(z=2.48)=3.61 that evolves as b(z)=0.230[(1+z)^2-6.565]+2.394, consistent with constant ~10^12 M_sun halo mass and weak luminosity dependence at fixed redshift.

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