Star formation in quasar host galaxies at redshift 6: Millimeter surveys and new insights from ALMA

Ran Wang, Jeff Wagg, Chris L. Carilli, Fabian Walter, Xiaohui Fan, Frank Bertoldi, Dominik A. Riechers, Alain Omont, Karl M. Menten, Pierre Cox, Michael A. Strauss, Desika Narayanan

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations


We have been carrying out a systematic survey of the star formation and ISM properties in the host galaxies of z∼6 quasars. Our 250 GHz observations, together with available data from the literature, yield a sample of 14 z∼6 quasars that are bright in millimeter dust continuum emission with estimated FIR luminosities of a few 1012 to 1013 L⊠™. Most of these millimeter-detected z∼6 quasars have also been detected in molecular CO line emission, indicating molecular gas masses on order of 1010 M⊙. We have searched for [C II] 158 micron fine structure line emission toward four of the millimeter bright z∼6 quasars with ALMA and all of them have been detected. All these results suggest massive star formation at rates of about 600 to 2000 M⊙ yr-1 over the central few kpc region of these quasar host galaxies.

Original languageEnglish (US)
Title of host publicationMolecular Gas, Dust, and Star Formation in Galaxies
EditorsTony Wong, Jurgen Ott
Number of pages4
StatePublished - Aug 2012

Publication series

NameProceedings of the International Astronomical Union
ISSN (Print)1743-9213
ISSN (Electronic)1743-9221

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science


  • galaxies: evolution
  • galaxies: starburst
  • quasars: general
  • submillimeter


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