Spitzer imaging of i '-drop galaxies: old stars at z approximate to 6
We present new evidence for mature stellar populations with ages >100 Myr in massive galaxies (M stellar > 10 10 M ⊙) seen at a time when the Universe was less than 1 Gyr old. We analyse the prominent detections of two z ≈ 6 star-forming galaxies (SBM03#1 and #3) made at wavelengths co...
| Autors principals: | , , , , , |
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| Format: | Journal article |
| Idioma: | English |
| Publicat: |
2005
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