Detection of 1.6 × 1010 M of molecular gas in the host galaxy of the z = 5.77 SDSS quasar J0927+2001

C. L. Carilli, R. Neri, R. Wang, P. Cox, F. Bertoldi, F. Walter, X. Fan, K. Menten, J. Wagg, R. Maiolino, A. Omont, Michael A. Strauss, D. Riechers, K. Y. Lo, A. Bolatto, N. Scoville

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Abstract

We have detected emission by the CO(5-4) and (6-5) rotational transitions atfromthez p 5.7722 ± 0.0006 from the host galaxy of the SDSS quasar J0927+2001 using the Plateau de Bure Interferometer. The peak line flux density for the CO(5-4) line is 0.72 ± 0.09 mJy, with a line FWHM = 610 ± 110 km s-1. The implied molecular gas mass is (1.6 ± 0.3) × 100.1210 M. We also detect the 90 GHz continuum at 0.12 ± 0.03 mJy, consistent with a 47 K dust spectrum extrapolated from higher frequencies. J0927+2001 is the second example of a huge molecular gas reservoir within the host galaxy of a quasar within 1 Gyr of the big bang. Observations of J0927+2001 are consistent with a massive starburst coeval with a bright quasar phase in the galaxy, suggesting the rapid formation of both a supermassive black hole through accretion, and the stellar host spheroid, at a time close to the end of cosmic reionization.

Original languageEnglish (US)
Pages (from-to)L9-L12
JournalAstrophysical Journal
Volume666
Issue number1 PART 2
DOIs
StatePublished - Jan 1 2007

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science

Keywords

  • Galaxies: formation
  • Galaxies: high-redshift
  • Quasars: general
  • Radio lines: galaxies
  • Submillimeter

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    Carilli, C. L., Neri, R., Wang, R., Cox, P., Bertoldi, F., Walter, F., Fan, X., Menten, K., Wagg, J., Maiolino, R., Omont, A., Strauss, M. A., Riechers, D., Lo, K. Y., Bolatto, A., & Scoville, N. (2007). Detection of 1.6 × 1010 M of molecular gas in the host galaxy of the z = 5.77 SDSS quasar J0927+2001. Astrophysical Journal, 666(1 PART 2), L9-L12. https://doi.org/10.1086/521648