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

Abstract

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
Pages184-187
Number of pages4
EditionS292
DOIs
StatePublished - Aug 2012

Publication series

NameProceedings of the International Astronomical Union
NumberS292
Volume8
ISSN (Print)1743-9213
ISSN (Electronic)1743-9221

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science

Keywords

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

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