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Extremely Red Objects in the Lockman Hole
dc.contributor.author | Wilson, Graham Wallace | |
dc.contributor.author | Huang, J. S. | |
dc.contributor.author | Pérez-González, P. G. | |
dc.contributor.author | Egami, E. | |
dc.contributor.author | Ivison, R. J. | |
dc.contributor.author | Rigby, J. R. | |
dc.contributor.author | Alonso-Herrero, A. | |
dc.contributor.author | Barmby, P. | |
dc.contributor.author | Dole, H. | |
dc.contributor.author | Fazio, G. G. | |
dc.contributor.author | Le Floc'h, E. | |
dc.contributor.author | Papovich, Casey J. | |
dc.contributor.author | Rigaopoulou, D. | |
dc.contributor.author | Bai, L. | |
dc.contributor.author | Engelbracht, C. W. | |
dc.contributor.author | Frayer, D. T. | |
dc.contributor.author | Gordon, K. D. | |
dc.contributor.author | Hines, D. C. | |
dc.contributor.author | Misselt, K. A. | |
dc.contributor.author | Miyazaki, S. | |
dc.contributor.author | Morrison, J. E. | |
dc.contributor.author | Rieke, G. H. | |
dc.contributor.author | Rieke, M. J. | |
dc.contributor.author | Surace, J. | |
dc.date.accessioned | 2015-04-24T16:15:43Z | |
dc.date.available | 2015-04-24T16:15:43Z | |
dc.date.issued | 2004-05-21 | |
dc.identifier.citation | G. Wilson et al. "Extremely Red Objects in the Lockman Hole." (2004) ApJS. 154. 107 http://dx.doi.org/10.1086/422716. | en_US |
dc.identifier.uri | http://hdl.handle.net/1808/17518 | |
dc.description | This is the published version, also available here: http://dx.doi.org/10.1086/422716. | en_US |
dc.description.abstract | We investigate extremely red objects (EROs) using near- and mid-infrared observations in five passbands (3.6 to 24 μm) obtained from the Spitzer Space Telescope, and deep ground-based R and K imaging. The great sensitivity of the Infrared Array Camera (IRAC) camera allows us to detect 64 EROs (a surface density of 2.90 ± 0.36 arcmin-2; [3.6]AB < 23.7) in only 12 minutes of IRAC exposure time, by means of an R - [3.6] color cut (analogous to the traditional red R - K cut). A pure infrared K - [3.6] red cut detects a somewhat different population and may be more effective at selecting z > 1.3 EROs. We find ~17% of all galaxies detected by IRAC at 3.6 or 4.5 μm to be EROs. These percentages rise to about 40% at 5.8 μm, and about 60% at 8.0 μm. We utilize the spectral bump at 1.6 μm to divide the EROs into broad redshift slices using only near-infrared colors (2.2/3.6/4.5 μm). We conclude that two-thirds of all EROs lie at redshift z > 1.3. Detections at 24 μm imply that at least 11% of 0.6 < z < 1.3 EROs and at least 22% of z > 1.3 EROs are dusty star-forming galaxies. | en_US |
dc.publisher | American Astronomical Society | en_US |
dc.subject | Cosmology | en_US |
dc.subject | observations | en_US |
dc.subject | evolution | en_US |
dc.subject | high-redshift | en_US |
dc.subject | galaxies | en_US |
dc.subject | photometry | en_US |
dc.subject | starburst | en_US |
dc.subject | infrared: galaxies | en_US |
dc.title | Extremely Red Objects in the Lockman Hole | en_US |
dc.type | Article | |
kusw.kuauthor | Wilson, Graham Wallace | |
kusw.kudepartment | Physics and Astronomy | en_US |
dc.identifier.doi | 10.1086/422716 | |
kusw.oaversion | Scholarly/refereed, publisher version | |
kusw.oapolicy | This item does not meet KU Open Access policy criteria. | |
dc.rights.accessrights | openAccess |