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The Spitzer-IRAC/MIPS Extragalactic Survey (SIMES) in the South Ecliptic Pole field

Baronchelli, I.; Scarlata, C.; Rodighiero, G.; Franceschini, A.; Capak, P. L.; Mei, S.; Vaccari, M.; Marchetti, L.; Hibon, P.; Sedgwick, C.; Pearson, C.; Serjeant, S.; Menéndez-Delmestre, K.; Salvato, M.; Malkan, M.; Teplitz, H. I.; Hayes, M.; Colbert, J.; Papovich, C.; Devlin, M.; Kovacs, A.; Scott, K. S.; Surace, J.; Kirkpatrick, J. D.; Atek, H.; Urrutia, T.; Scoville, N. Z. and Takeuchi, T. T. (2016). The Spitzer-IRAC/MIPS Extragalactic Survey (SIMES) in the South Ecliptic Pole field. The Astrophysical Journal Supplement Series, 223(1) p. 1.

DOI (Digital Object Identifier) Link: https://doi.org/10.3847/0067-0049/223/1/1
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Abstract

We present the Spitzer-IRAC/MIPS Extragalactic survey (SIMES) in the South Ecliptic Pole field. The large area covered (7.7 deg2), together with one of the lowest Galactic cirrus emissions in the entire sky and a very extensive coverage by Spitzer, Herschel, Akari, and GALEX, make the SIMES field ideal for extragalactic studies. The elongated geometry of the SIMES area (≈4:1), allowing for significant cosmic variance reduction, further improves the quality of statistical studies in this field. Here we present the reduction and photometric measurements of the Spitzer/IRAC data. The survey reaches depths of 1.93 and 1.75 μJy (1σ) at 3.6 and 4.5 μm, respectively. We discuss the multiwavelength IRAC-based catalog, completed with optical, mid-, and far-IR observations. We detect 341,000 sources with F3.6μm ≥ 3σ. Of these, 10% have an associated 24 μm counterpart, while 2.7% have an associated SPIRE source. We release the catalog through the NASA/IPAC Infrared Science Archive. Two scientific applications of these IRAC data are presented in this paper. First, we compute integral number counts at 3.6 μm. Second, we use the [3.6]–[4.5] color index to identify galaxy clusters at z > 1.3. We select 27 clusters in the full area, a result consistent with previous studies at similar depth.

Item Type: Journal Item
Copyright Holders: 2016. The American Astronomical Society
ISSN: 1538-4357
Extra Information: 24 pp.
Keywords: galactic evolution; infrared galaxies; galactic surveys
Academic Unit/School: Faculty of Science, Technology, Engineering and Mathematics (STEM) > Physical Sciences
Faculty of Science, Technology, Engineering and Mathematics (STEM)
Research Group: Space
Item ID: 45985
Depositing User: Stephen Serjeant
Date Deposited: 11 Apr 2016 09:48
Last Modified: 07 Dec 2018 10:40
URI: http://oro.open.ac.uk/id/eprint/45985
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