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dc.contributor.authorMarleau, Francine R.
dc.contributor.authorFadda, D.
dc.contributor.authorStorrie-Lombardi, L. J.
dc.contributor.authorHelou, George
dc.contributor.authorMakovoz, D.
dc.contributor.authorFrayer, D. T.
dc.contributor.authorYan, Lin
dc.contributor.authorAppleton, P. N.
dc.contributor.authorArmus, L.
dc.contributor.authorChapman, S. C.
dc.contributor.authorChoi, P. I.
dc.contributor.authorFang, Fang
dc.contributor.authorHeinrichsen, I.
dc.contributor.authorIm, M.
dc.contributor.authorLacy, M.
dc.contributor.authorShupe, D. L.
dc.contributor.authorSoifer, B. T.
dc.contributor.authorSquires, G.
dc.contributor.authorSurace, J.
dc.contributor.authorTeplitz, H. I.
dc.contributor.authorWilson, Graham Wallace
dc.identifier.citationMarleau, Francine R. et al. (2004). "Extragalactic Source Counts at 24 Microns in the Spitzer First Look Survey." Astrophysical Journal Supplement Series, 154(1):66-69.
dc.descriptionThis is the publisher's version, also available electronically from
dc.description.abstractWe present the Spitzer Multiband Imaging Photometer 24 μm source counts in the Extragalactic First Look Survey (FLS) main, verification, and European Large Area ISO Survey N1 fields. Spitzer's increased sensitivity and efficiency in large areal coverage over previous infrared telescopes, coupled with the enhanced sensitivity of the 24 μm band to sources at intermediate redshift, dramatically improve the quality and statistics of number counts in the mid-infrared. The FLS observations cover areas of 4.4, 0.26, and 0.015 deg2, respectively, and reach 3 σ depths of 0.11, 0.08, and 0.03 mJy. The extragalactic counts derived for each survey agree remarkably well. The counts can be fitted by a super-Euclidean power law of index α = -2.9 from 0.2 to 0.9 mJy, with a flattening of the counts at fluxes fainter than 0.2 mJy. Comparison with infrared galaxy evolution models reveals a peak's displacement in the 24 μm counts. This is probably due to the detection of a new population of galaxies with redshift between 1 and 2, previously unseen in the 15 μm deep counts.en_US
dc.publisherAmerican Astronomical Societyen_US
dc.titleExtragalactic Source Counts at 24 Microns in the Spitzer First Look Surveyen_US
kusw.kuauthorWilson, Graham Wallace
kusw.kudepartmentPhysics and Astronomyen_US
kusw.oaversionScholarly/refereed, publisher version
kusw.oapolicyThis item does not meet KU Open Access policy criteria.

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