Photometric Redshifts in the IRAC Shallow Survey
- 10 November 2006
- journal article
- Published by American Astronomical Society in The Astrophysical Journal
- Vol. 651 (2) , 791-803
- https://doi.org/10.1086/507838
Abstract
Accurate photometric redshifts are calculated for nearly 200,000 galaxies to a 4.5 micron flux limit of ~13 uJy in the 8.5 deg^2 Spitzer/IRAC Shallow survey. Using a hybrid photometric redshift algorithm incorporating both neural-net and template-fitting techniques, calibrated with over 15,000 spectroscopic redshifts, a redshift accuracy of \sigma = 0.06(1+z) is achieved for 95% of galaxies at 01) galaxy clusters. We present one such spectroscopically confirmed cluster at =1.24, ISCS J1434.5+3427. Finally, we present a measurement of the 4.5 micron-selected galaxy redshift distribution.Comment: 14 pages, 9 Figures, 5 Tables. ApJ in press. For a version with full-resolution figures, please see http://www.astro.utoronto.ca/~brodwin/papers/0607450.pdKeywords
All Related Versions
This publication has 53 references indexed in Scilit:
- TheChandraXBootes Survey. III. Optical and Near‐Infrared CounterpartsThe Astrophysical Journal, 2006
- Star forming galaxies at z≈6 and reionizationNew Astronomy Reviews, 2006
- The Canada‐France Deep Fields Survey. III. Photometric Redshift Distribution to I AB = 24The Astrophysical Journal Supplement Series, 2006
- The Mass Assembly Histories of Galaxies of Various Morphologies in the GOODS FieldsThe Astrophysical Journal, 2005
- ImpZ: a new photometric redshift code for galaxies and quasarsMonthly Notices of the Royal Astronomical Society, 2004
- Stellar population synthesis at the resolution of 2003Monthly Notices of the Royal Astronomical Society, 2003
- The K20 surveyAstronomy & Astrophysics, 2002
- Evolution in the Clustering of Galaxies forz < 1.0The Astrophysical Journal, 2000
- Bayesian Photometric Redshift EstimationThe Astrophysical Journal, 2000
- SExtractor: Software for source extractionAstronomy and Astrophysics Supplement Series, 1996