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Probing the Coevolution of Supermassive Black Holes and Galaxies Using Gravitationally Lensed Quasar Hosts
Open accessAbstract
In the present-day universe, supermassive black hole masses (M BH ) appear to be strongly correlated with their galaxy's bulge luminosity, among other properties.In this study we explore the analogous relationship between M BH , derived using the virial method, and the stellar R-band bulge luminosity (L R ) or stellar bulge mass (M Ã ) at epochs of 1P z P 4:5, using a sample of 31 gravitationally lensed AGNs and 20 nonlensed AGNs.At redshifts z > 1:7 (10 Y12 Gyr ago), we find that the observed M BH -L R relation is nearly the same (to within $0.3 mag) as it is today.When the observed L R are corrected for luminosity evolution, this means that the black holes grew in mass faster than their hosts, with the M BH /M Ã mass ratio being a factor of k4 þ2À1 times larger at z > 1:7 than it is today.By the redshift range 1P z P1:7 (8Y10 Gyr ago), the M BH /M Ã ratio is at most 2 times higher than today, but it may be consistent with no evolution.Combining the results, we conclude that the ratio M BH /M Ã rises with look-back time, although it may saturate at %6 times the local value.Scenarios in which moderately luminous quasar hosts at z k1:7 were fully formed bulges that passively faded to the present epoch are ruled out.
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Schlegel, D. J., Finkbeiner, D. P., & Davis, M. (1998) · The Astrophysical Journal · doi:10.1086/305772 · Cited by 15,126
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Metadata
- Authors
- Peng, C. Y., Impey, C. D., Rix, H., Kochanek, C. S., Keeton, C. R., Falco, E. E., Lehar, J., & McLeod, B. A.
- Venue
- The Astrophysical Journal
- Publisher
- American Astronomical Society
- Published
- 2006-10
- Volume
- 649
- Issue
- 2
- Pages
- 616-634
- ISSN
- 0004-637X (ISSN-L)
- 1538-4357
- OpenAlex
- W2059955787
- Cited by
- 415
- References
- 1
- FWCI
- 17.93
- Type
- journal article
- Language
- en
- Open access
- bronze
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- Peng, C. Y., Impey, C. D., Rix, H., Kochanek, C. S., Keeton, C. R., Falco, E. E., Lehar, J., & McLeod, B. A. (2006). Probing the Coevolution of Supermassive Black Holes and Galaxies Using Gravitationally Lensed Quasar Hosts. The Astrophysical Journal. https://doi.org/10.1086/506266
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