Metallicity and black hole masses of z6 quasars

Details Metallicity and black hole masses of z6 quasars Metallicity and black hole masses of z6 quasars

Aug 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007hia....14..257k&link_type=abstract

Highlights of Astronomy, Volume 14, p. 257-257

Astronomy and Astrophysics

Astronomy

1

Galaxies: High-Redshift, Galaxies: Fundamental Parameters, Galaxies: Abundances

Scientific paper

We present NIR spectroscopy of emission lines of a sample of five z6 quasars, including fainter objects than observed before. The measured FeII/MgII ratios are around solar and consistent with a lack of evolution of the metallicity of quasar BLRs up to z6, suggesting that stars in their hosts formed at z6. The BH masses, measured from both MgII and CIV line widths are within the range 2-16×108M, the smallest found in such distant objects.

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