2010/05/20 by Pablo G. Pérez‐González, P. G. Pérez-González, Eiichi Egami +53 · 35 citations
Physics and Astronomy · #Astronomy #Astronomy and Astrophysical Research #Astrophysics #Galaxies: Formation, Evolution, Phenomena #Galaxy #Gamma-ray bursts and supernovae #Luminous infrared galaxy #Millimeter #Photometric redshift #Physics #Population #Redshift #Source counts #Spectral energy distribution #astro-ph.CO
paper · pdf · doi:10.1051/0004-6361/201014593
published in Astronomy and Astrophysics 518, L15 (EDP Sciences) · Accepted for publication in Astronomy and Astrophysics (Herschel special issue)
arxiv created 2010/05/20 · openalex publication_date 2010/07/01 · arxiv updated 2015/05/19 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We present preliminary results about the detection of high redshift (U)LIRGs in the Bullet cluster field by the PACS and SPIRE instruments within the <i>Herschel<i/> Lensing Survey (HLS) Program. We describe in detail a photometric procedure designed to recover robust fluxes and deblend faint <i>Herschel<i/> sources near the confusion noise. The method is based on the use of the positions of <i>Spitzer<i/>/MIPS 24 <i>μ<i/>m sources as priors. Our catalogs are able to reliably (5<i>σ<i/>) recover galaxies with fluxes above 6 and 10 mJy in the PACS 100 and 160 <i>μ<i/>m channels, respectively, and 12 to 18 mJy in the SPIRE bands. We also obtain spectral energy distributions covering the optical through the far-infrared/millimeter spectral ranges of all the <i>Herschel<i/> detected sources, and analyze them to obtain independent estimations of the photometric redshift based on either stellar population or dust emission models. We exemplify the potential of the combined use of <i>Spitzer<i/> position priors plus independent optical and IR photometric redshifts to robustly assign optical/NIR counterparts to the sources detected by <i>Herschel<i/> and other (sub-)mm instruments.