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It has been claimed that there is a large population of obscured, accreting black holes at high-redshift and that the integrated black hole density at z=6 as inferred from X-ray observations is ~100 times greater than inferred from optical quasars.
Volonteri, M., & Stark, D. P. 2011, MNRAS, in press, arXiv:1107.1946
1946
Earlier work this paper cites.
Ferrarese, L., & Merritt, D. 2000, ApJ, 539, L9
2000
Earlier work this paper cites.
Gebhardt, K., Bender, R., Bower, G., et al. 2000, ApJ, 539, L13
2000
Earlier work this paper cites.
Alexander, D. M., Bauer, F. E., Brandt, W. N., et al. 2003, AJ, 126, 539
2003
Earlier work this paper cites.
Markevitch, M., Bautz, M. W., Biller, B., et al. 2003, ApJ, 583, 70
2003
Earlier work this paper cites.
Bouwens, R. J., Illingworth, G. D., Blakeslee, J. P. & Franx, M. 2006, ApJ, 653, 53
2006
Earlier work this paper cites.
Lauer, T. R., Tremaine, S., Richstone, D., & Faber, S. M. 2007, ApJ, 670, 249
2007
Cited alongside, same era.
White, R. L., Helfand, D. J., Becker, R. H., Glikman, E., & de Vries, W. 2007, ApJ, 654, 99
2007
Cited alongside, same era.
Luo, B., Bauer, F. E., Brandt, W. N., et al. 2008, ApJS, 179, 19
2008
Cited alongside, same era.
Bouwens, R. J., Illingworth, G. D., Franx, M., et al. 2009, ApJ, 705, 936
2009
Cited alongside, same era.
Stark, D., Ellis, R. S., Bunker, A., et al. 2009, ApJ, 697, 1493
2009
Cited alongside, same era.
Treister, E., Cardamone, C. N., Schawinski, K., et al. 2009, ApJ, 706, 535
2009
Cited alongside, same era.
Wang, R., Carilli, C. L., Neri, R., et al. 2010, ApJ, 714, 699
2010
Later among the works it cites.
Willott, C. J., Albert, L., Arzoumanian, D., et al. 2010, AJ, 140, 546
2010
Later among the works it cites.
Luo, B., Brandt, W. N., Xue, Y. Q., et al. 2011, ApJ, 740, 37
2011
Closest in time.
Treister, E., Schawinski, K., Volonteri, M., Natarajan, P. & Gawiser, E. 2011, Nature, 474, 356 (T11)
2011
Closest in time.
Xue, Y. Q., Luo, B., Brandt, W. N., et al. 2011, ApJSS, 195, 10
2011
Closest in time.
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