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http://hdl.handle.net/20.500.12386/29221
Titolo: | The X-Ray Halo Scaling Relations of Supermassive Black Holes | Autori: | GASPARI, MASSIMO Eckert, D. ETTORI, STEFANO TOZZI, Paolo Bassini, L. RASIA, ELENA Brighenti, F. Sun, M. BORGANI, STEFANO Johnson, S. D. Tremblay, G. R. Stone, J. M. Temi, P. Yang, H.-Y. K. Tombesi, Francesco CAPPI, MASSIMO |
Data pubblicazione: | 2019 | Rivista: | THE ASTROPHYSICAL JOURNAL | Numero: | 884 | Fascicolo: | 2 | Da pagina:: | 169 | Abstract: | We carry out a comprehensive Bayesian correlation analysis between hot halos and direct masses of supermassive black holes (SMBHs), by retrieving the X-ray plasma properties (temperature, luminosity, density, pressure, and masses) over galactic to cluster scales for 85 diverse systems. We find new key scalings, with the tightest relation being M_bh - T_x, followed by M_bh - L_x. The tighter scatter (down to 0.2 dex) and stronger correlation coefficient of all the X-ray halo scalings compared with the optical counterparts (as the M_bh - σ_e) suggest that plasma halos play a more central role than stars in tracing and growing SMBHs (especially those that are ultramassive). Moreover, M_bh correlates better with the gas mass than dark matter mass. We show the important role of the environment, morphology, and relic galaxies/coronae, as well as the main departures from virialization/self-similarity via the optical/X-ray fundamental planes. We test the three major channels for SMBH growth: hot/Bondi-like models have inconsistent anticorrelation with X-ray halos and too low feeding; cosmological simulations find SMBH mergers as subdominant over most of cosmic time and too rare to induce a central-limit-theorem effect; the scalings are consistent with chaotic cold accretion, the rain of matter condensing out of the turbulent X-ray halos that sustains a long-term self-regulated feedback loop. The new correlations are major observational constraints for models of SMBH feeding/feedback in galaxies, groups, and clusters (e.g., to test cosmological hydrodynamical simulations), and enable the study of SMBHs not only through X-rays, but also via the Sunyaev-Zel’dovich effect (Compton parameter), lensing (total masses), and cosmology (gas fractions). | URI: | http://hdl.handle.net/20.500.12386/29221 | URL: | https://iopscience.iop.org/article/10.3847/1538-4357/ab3c5d | ISSN: | 0004-637X | DOI: | 10.3847/1538-4357/ab3c5d | Bibcode ADS: | 2019ApJ...884..169G | Fulltext: | open |
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