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2012MNRAS.421L..77G - Mon. Not. R. Astron. Soc., 421, L77-L81 (2012/March-3)
Spectroscopy of the spatially extended Lyα emission around a quasar at z= 6.4.
GOTO T., UTSUMI Y., WALSH J.R., HATTORI T., MIYAZAKI S. and YAMAUCHI C.
Abstract (from CDS):
If we assume the gas is virialized, we obtain a dynamical mass estimate of Mdyn= 1.2 {x} 1012 M☉. The derived MBH/Mhost ratio is 2.1 {x} 10–4, which is two orders of magnitude smaller than those from more massive z ∼ 6 QSOs, and places this galaxy in accordance with the localMBH-σ relation, in contrast to a previous claim on the evolution of the MBH-σ relation at z ∼ 6. We do not claim evolution or non-evolution of the MBH-σ relation based on a single object, but our result highlights the importance of investigating fainter QSOs at z ∼ 6. Discovery of the longest period rapidly oscillating Ap star HD 177765
Abstract Copyright: 2012 The Authors Monthly Notices of the Royal Astronomical Society2012 RAS
Journal keyword(s): black hole physics - galaxies: high-redshift - quasars: individual: CFHQS J232908.28-030158.8
Simbad objects: 2
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