SPITZER observations of z-3 Lyman break galaxies: Stellar masses and mid-infrared properties
We describe the spectral energy distributions (SEDs) of Lyman break galaxies (LBGs) at z ∼ 3, using deep mid-infrared and optical observations of the extended Groth strip, obtained with IRAC and MIPS on board Spitzer and from the ground, respectively. We focus on LBGs with detections at all four IRA...
| Main Authors: | , , , , , , , , , , , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
Institute of Physics Publishing
2006
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| _version_ | 1797106163510149120 |
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| author | Rigopoulou, D Huang, J Papovich, C Ashby, M Barmby, P Shu, C Bundy, K Egami, E Magdis, G Smith, H Willner, S Wilson, G Fazio, G |
| author_facet | Rigopoulou, D Huang, J Papovich, C Ashby, M Barmby, P Shu, C Bundy, K Egami, E Magdis, G Smith, H Willner, S Wilson, G Fazio, G |
| author_sort | Rigopoulou, D |
| collection | OXFORD |
| description | We describe the spectral energy distributions (SEDs) of Lyman break galaxies (LBGs) at z ∼ 3, using deep mid-infrared and optical observations of the extended Groth strip, obtained with IRAC and MIPS on board Spitzer and from the ground, respectively. We focus on LBGs with detections at all four IRAC bands, in particular the 26 galaxies with IRAC 8 μm band (rest-frame K-band) detections. We use stellar population-synthesis models and probe the stellar content of these galaxies. Based on best-fit continuous star formation models, we derive estimates of the stellar mass for these LBGs. As in previous studies, we find that a fraction of LBGs have very red colors and large estimated stellar masses (M* > 5 × 1010 M⊙); the current Spitzer data allow us, for the first time, to study these massive LBGs in detail. We discuss the link between these LBGs and submillimeter-luminous galaxies, and we find that the number density of these massive LBGs at high redshift is higher than predicted by current semianalytic models of galaxy evolution. © 2006. The American Astronomical Society. All rights reserved. |
| first_indexed | 2024-03-07T06:57:50Z |
| format | Journal article |
| id | oxford-uuid:febbf327-4d94-438b-8a5f-5bc91f52452a |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T06:57:50Z |
| publishDate | 2006 |
| publisher | Institute of Physics Publishing |
| record_format | dspace |
| spelling | oxford-uuid:febbf327-4d94-438b-8a5f-5bc91f52452a2022-03-27T13:38:56ZSPITZER observations of z-3 Lyman break galaxies: Stellar masses and mid-infrared propertiesJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:febbf327-4d94-438b-8a5f-5bc91f52452aEnglishSymplectic Elements at OxfordInstitute of Physics Publishing2006Rigopoulou, DHuang, JPapovich, CAshby, MBarmby, PShu, CBundy, KEgami, EMagdis, GSmith, HWillner, SWilson, GFazio, GWe describe the spectral energy distributions (SEDs) of Lyman break galaxies (LBGs) at z ∼ 3, using deep mid-infrared and optical observations of the extended Groth strip, obtained with IRAC and MIPS on board Spitzer and from the ground, respectively. We focus on LBGs with detections at all four IRAC bands, in particular the 26 galaxies with IRAC 8 μm band (rest-frame K-band) detections. We use stellar population-synthesis models and probe the stellar content of these galaxies. Based on best-fit continuous star formation models, we derive estimates of the stellar mass for these LBGs. As in previous studies, we find that a fraction of LBGs have very red colors and large estimated stellar masses (M* > 5 × 1010 M⊙); the current Spitzer data allow us, for the first time, to study these massive LBGs in detail. We discuss the link between these LBGs and submillimeter-luminous galaxies, and we find that the number density of these massive LBGs at high redshift is higher than predicted by current semianalytic models of galaxy evolution. © 2006. The American Astronomical Society. All rights reserved. |
| spellingShingle | Rigopoulou, D Huang, J Papovich, C Ashby, M Barmby, P Shu, C Bundy, K Egami, E Magdis, G Smith, H Willner, S Wilson, G Fazio, G SPITZER observations of z-3 Lyman break galaxies: Stellar masses and mid-infrared properties |
| title | SPITZER observations of z-3 Lyman break galaxies: Stellar masses and mid-infrared properties |
| title_full | SPITZER observations of z-3 Lyman break galaxies: Stellar masses and mid-infrared properties |
| title_fullStr | SPITZER observations of z-3 Lyman break galaxies: Stellar masses and mid-infrared properties |
| title_full_unstemmed | SPITZER observations of z-3 Lyman break galaxies: Stellar masses and mid-infrared properties |
| title_short | SPITZER observations of z-3 Lyman break galaxies: Stellar masses and mid-infrared properties |
| title_sort | spitzer observations of z 3 lyman break galaxies stellar masses and mid infrared properties |
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