First insights into the Spitzer Wide-Area Infrared Extragalactic Legacy Survey (SWIRE) galaxy populations

Lonsdale, Carol, Polletta, Maria del Carmen, Surace, Jason, Shupe, Dave, Fang, Fan, Xu, C Kevin, Smith, Harding E, Siana, Brian, Rowan-Robinson, Michael, Babbedge, Tom, Oliver, Seb, Pozzi, Francesca, Davoodi, Payam, Owen, Frazer, Padgett, Deborah, Frayer, Dave, Jarrett, Tom, Masci, Frank, O'Linger, JoAnne, Conrow, Tim, Farrah, Duncan, Morrison, Glenn, Gautier, Nick, Franceschini, Alberto, Berta, Stefano, Perez-Fournon, Ismael, Hatziminaoglou, Evanthia, Afonso-Luis, Alejandro, Dole, Herve, Stacey, Gordon, Serjeant, Steve, Pierre, Marguerite, Griffin, Matt and Puetter, Rick (2004) First insights into the Spitzer Wide-Area Infrared Extragalactic Legacy Survey (SWIRE) galaxy populations. Astrophysical Journal Supplement Series, 154 (1). p. 54. ISSN 0067-0049

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Abstract

We characterize the Spitzer Wide-area Infrared Extragalactic Legacy Survey (SWIRE) galaxy populations in the SWIRE validation field within the Lockman Hole, based on the 3.6-24 μm Spitzer data and deep U, g', r', i' optical imaging within an area ~1/3 deg2 for ~16,000 Spitzer SWIRE sources. The entire SWIRE survey will discover over 2.3 million galaxies at 3.6 μm and almost 350,000 at 24 μm ~70,000 of these will be five-band 3.6-24 μm detections. The colors cover a broad range, generally well represented by redshifted spectral energy distributions of known galaxy populations; however, significant samples of unusually blue objects in the [3.6]-[4.5] color are found, as well as many objects very red in the 3.6-24 μm mid-IR. Nine of these are investigated and are interpreted as star-forming systems, starbursts, and active galactic nuclei (AGNs) from z=0.37 to 2.8, with luminosities from LIR=1010.3 to 1013.7 Lsolar.

Item Type: Article
Schools and Departments: School of Mathematical and Physical Sciences > Physics and Astronomy
Depositing User: EPrints Services
Date Deposited: 06 Feb 2012 20:53
Last Modified: 23 Oct 2019 08:00
URI: http://sro.sussex.ac.uk/id/eprint/28602

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