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arxiv: astro-ph/0702130 · v1 · submitted 2007-02-05 · 🌌 astro-ph

Identification and Morphologies of Galaxies with Old Stellar Populations at z ~ 2.5

classification 🌌 astro-ph
keywords galaxiesmorphologiespopulationsstellarconfirmsdatadefinitelydescribe
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We describe a study of morphologies of galaxies with old stellar populations in radio-source fields at z ~ 2.5. A significant fraction of these are dominated by disks of old stars, and none we have found so far has the properties of present-epoch ellipticals. Recent Spitzer IRAC data confirms that at least one of our prime examples is definitely not a reddened star-forming galaxy.

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