2006/02/10 by D. Iono, Daisuke Iono, A. B. Peck +22 · 3 citations
Physics and Astronomy · #Astrophysical Phenomena and Observations #Astrophysics and Cosmic Phenomena #Galaxies: Formation, Evolution, Phenomena #astro-ph
paper · pdf · doi:10.1086/503290
published as Astrophys.J. 640 (2006) L1-L4 · 11 pages, 2 figures, ApJL accepted
arxiv created 2006/02/10 · openalex publication_date 2006/03/01 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/04
We present high-resolution 890 μm images of two 20 mJy submillimeter galaxies, SMM J123711+622212 and MIPS J142824.0+352619, obtained using the Submillimeter Array (SMA). Using submillimeter interferometric observations with an angular resolution of 2 5, the coordinates of these high-redshift sources are determined with an accuracy of 0 2. The new SMA data on SMM J123711+622212 reveal an unresolved submillimeter source offset to the east by 0 8 from an optical galaxy found in deep HST images, suggesting either a large galaxy with a dusty central region or an interacting galaxy system. The SMA image of hyperluminous ( L FIR = 3.2 × 10 13 L ☉ ) source MIPS J142824.0+352619 provides a firm upper limit to the source size of ≲1 2. This constraint provides evidence that the foreground lens is only weakly affecting the observed high far-infrared luminosity.