The Herschel-PACS North Ecliptic Pole Survey

PASJ: Publications of the Astronomical Society of Japan

Valtchanov, Ivan¹  Kim, Seong Jin²  Sedgwick, Chris³  Goto, Tomotsugu⁴  Matsuhara, Hideo⁶  Campos Varillas, Maria del Carmen⁷  Im, Myungshin⁸  Pearson, Chris⁸  Serjeant, Stephen⁸  Barrufet, Laia⁹  Jeong, Woong-Seob⁹  Clements, David L⁹ 

[1] Astronomy, Seoul National University, 1 Gwanak-rho, Gwanak-gu, Seoul, Korea;Astrophysics Group, Imperial College London, Blackett Laboratory, Prince Consort Road, London SW7 2AZ, UK;CEOU/Astronomy Program, Dept. of Physics &European Space Astronomy Centre, 28691 Villanueva de la Cañada, Spain;Korea Astronomy and Space Science Institute (KASI), 776 Daedeok-daero, Yuseong-gu, Daejeon 34055, Korea;National Tsing Hua University No. 101, Section 2, Kuang-Fu Road, Hsinchu, Taiwan 30013;Oxford Astrophysics, University of Oxford, Keble Road, Oxford OX1 3RH, UK;RAL Space, STFC Rutherford Appleton Laboratory, Didcot, Oxfordshire OX11 0QX, UK;School of Physical Sciences, The Open University, Milton Keynes, MK7 6AA, UK

关键词: surveys;    galaxies: evolution;   

DOI  :  10.1093/pasj/psy107

学科分类：天文学(综合)

来源: Oxford University Press

【 摘 要 】

A detailed analysis of Herschel/Photoconductor Array Camera and Spectrometer (PACS) observations at the North Ecliptic Pole is presented. High-quality maps, covering an area of 0.44 deg2, are produced and then used to derive potential candidate source lists. A rigorous quality-control pipeline has been used to create final legacy catalogues in the PACS Green 100 μm and Red 160 μm bands, containing 1384 and 630 sources respectively. These catalogues reach to more than twice the depth of the current archival Herschel/PACS Point Source Catalogue, detecting 400 and 270 more sources in the short- and long-wavelength bands, respectively. Galaxy source counts are constructed that extend down to flux densities of 6 mJy and 19 mJy (50% completeness) in the Green 100 μm and Red 160 μm bands, respectively. These source counts are consistent with previously published PACS number counts in other fields across the sky. The source counts are then compared with a galaxy evolution model which identifies a population of luminous infrared galaxies as responsible for the bulk of the galaxy evolution over the flux range (5–100 mJy) spanned by the observed counts, contributing approximate fractions of 50% and 60% to the cosmic infrared background at 100 μm and 160 μm, respectively.

【 授权许可】

CC BY