NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-04-22 T03:46:19 PDT
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For refcode 2016ApJ...832L..11M:
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2016ApJ...832L..11M Stellar Populations across the Black Hole Mass-Velocity Dispersion Relation Martin-Navarro, Ignacio; Brodie, Jean P.; van den Bosch, Remco C. E.; Romanowsky, Aaron J.; Forbes, Duncan A. Abstract. Coevolution between supermassive black holes (BH) and their host galaxies is universally adopted in models for galaxy formation. In the absence of feedback from active galactic nuclei (AGNs), simulated massive galaxies keep forming stars in the local universe. From an observational point of view, however, such coevolution remains unclear. We present a stellar population analysis of galaxies with direct BH mass measurements and the BH mass-sigma relation as a working framework. We find that over-massive BH galaxies, i.e., galaxies lying above the best-fitting BH mass-sigma line, tend to be older and more {alpha}-element-enhanced than under-massive BH galaxies. The scatter in the BH mass-sigma-[{alpha}/Fe] plane is significantly lower than that in the standard BH mass-sigma relation. We interpret this trend as an imprint of AGN feedback on the star formation histories of massive galaxies. Key words: galaxies: active, galaxies: evolution, galaxies: formation, galaxies: fundamental parameters, galaxies: general, galaxies: stellar content
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