2006/07/12 by Jeff Wagg, J. Wagg, David J. Wilner +5 · 2 citations
Physics and Astronomy · #Astrophysics and Star Formation Studies #Galaxies: Formation, Evolution, Phenomena #Stellar, planetary, and galactic studies #astro-ph
paper · pdf · doi:10.1086/507677
published as Astrophys.J.651:46-50,2006 · Accepted for publication in the Astrophysical Journal
arxiv created 2006/07/12 · openalex publication_date 2006/10/27 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/31
We present a detection of [C I] 3 P 1 - 3 P 0 emission in the lensed quasar APM 08279+5255 at z = 3.91 using the IRAM Plateau de Bure interferometer. The [C I] line velocity and width are similar to the values of previously detected high- J CO and HCN lines in this source, suggesting that the emission from all of these species arises from the same region. The apparent luminosity of the [C I] line is L = (3.1 ± 0.4) × 10 10 K km s -1 pc 2 , which implies a neutral carbon mass M = (4.4 ± 0.6) m -1 × 10 7 M ☉ , where m is the lensing magnification factor. The [C I] line luminosity is consistent with the large molecular gas mass inferred from the nuclear CO line luminosity (~10 11 m -1 M ☉ ). We also present an upper limit on the H 2 O 1 10 -1 01 line luminosity in APM 08279+5255 of L < 1.8 × 10 10 K km s -1 pc 2 (3 σ).