THE SPITZER-IRAC/MIPS EXTRAGALACTIC SURVEY (SIMES) in the SOUTH ECLIPTIC POLE FIELD

I. Baronchelli, C. Scarlata, G. Rodighiero, A. Franceschini, P. L. Capak, S. Mei, M. Vaccari, L. Marchetti, P. Hibon, C. Sedgwick, C. Pearson, S. Serjeant, K. Menéndez-Delmestre, M. Salvato, M. Malkan, H. I. Teplitz, M. Hayes, J. Colbert, C. Papovich, M. DevlinA. Kovacs, K. S. Scott, J. Surace, J. D. Kirkpatrick, H. Atek, T. Urrutia, N. Z. Scoville, T. T. Takeuchi

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

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 . 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.

Original languageEnglish (US)
Article number1
JournalAstrophysical Journal, Supplement Series
Volume223
Issue number1
DOIs
StatePublished - Mar 2016

Keywords

  • catalogs
  • galaxies: evolution
  • infrared: galaxies
  • submillimeter: galaxies
  • surveys

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