Photometric Redshifts in the IRAC Shallow Survey | Zendy

M. Brodwin | Zendy; M. J. I. Brown | Zendy; M. L. N. Ashby | Zendy; Chao Bian | Zendy; Kate Brand | Zendy; Anirban Dey | Zendy; Peter Eisenhardt | Zendy; Daniel J. Eisenstein | Zendy; Anthony H. Gonzalez | Zendy; J.S. Huang | Zendy; Buell T. Jannuzi | Zendy; C. S. Kochanek | Zendy; Eric McKenzie | Zendy; S. S. Murray | Zendy; M. A. Pahre | Zendy; H. A. Smith | Zendy; B. T. Soifer | Zendy; S. A. Stanford | Zendy; Daniel Stern | Zendy; R. Elston | Zendy

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Photometric Redshifts in the IRAC Shallow Survey

Author(s) -

M. Brodwin,

M. J. I. Brown,

M. L. N. Ashby,

Chao Bian,

Kate Brand,

Anirban Dey,

Peter Eisenhardt,

Daniel J. Eisenstein,

Anthony H. Gonzalez,

J.S. Huang,

Buell T. Jannuzi,

C. S. Kochanek,

Eric McKenzie,

S. S. Murray,

M. A. Pahre,

H. A. Smith,

B. T. Soifer,

S. A. Stanford,

Daniel Stern,

R. Elston

Publication year - 2006

Publication title -

the astrophysical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.376

H-Index - 489

eISSN - 1538-4357

pISSN - 0004-637X

DOI - 10.1086/507838

Subject(s) - redshift , physics , astrophysics , galaxy , photometric redshift , redshift survey , population , flux (metallurgy) , astronomy , chemistry , demography , sociology , organic chemistry

Accurate photometric redshifts are calculated for nearly 200,000 galaxies toa 4.5 micron flux limit of ~13 uJy in the 8.5 deg^2 Spitzer/IRAC Shallowsurvey. Using a hybrid photometric redshift algorithm incorporating bothneural-net and template-fitting techniques, calibrated with over 15,000spectroscopic redshifts, a redshift accuracy of \sigma = 0.06(1+z) is achievedfor 95% of galaxies at 01) galaxy clusters.We present one such spectroscopically confirmed cluster at =1.24, ISCSJ1434.5+3427. Finally, we present a measurement of the 4.5 micron-selectedgalaxy redshift distribution.

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