Metallicity and black hole masses of z≃6 quasars

Jaron D. Kurk, Fabian Walter, Dominik Riechers, Hans Walter Rix, Stefan Wagner, Laura Pentericci, Xiaohui Fan

Research output: Contribution to journalArticle

Abstract

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 2-16108M, the smallest found in such distant objects.

Original languageEnglish (US)
Number of pages1
JournalProceedings of the International Astronomical Union
Volume2
Issue number14
DOIs
StatePublished - Aug 1 2006

Keywords

  • Galaxies: abundances
  • Galaxies: fundamental parameters
  • Galaxies: high-redshift

ASJC Scopus subject areas

  • Medicine (miscellaneous)
  • Astronomy and Astrophysics
  • Nutrition and Dietetics
  • Public Health, Environmental and Occupational Health
  • Space and Planetary Science

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