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Azzollini, R; Trujillo, I; Beckman, JE
The Astrophysical journal, 06/2008, Letnik: 679, Številka: 2Journal Article
We present deep color profiles for a sample of 415 disk galaxies within the redshift range 0.1 < z less than or equal to 1.1, and contained in HST ACS imaging of the GOODS-South field. For each galaxy, passband combinations are chosen to obtain, at each redshift, the best possible approximation to the rest-frame u - g color. We find that objects which show a truncation in their stellar disk (type II objects) usually show a minimum in their color profile at the break, or very near to it, with a maximum to minimum amplitude in color of unsupported character0.2 mag arcsec super(-2), a feature which is persistent through the explored range of redshifts (i.e., in the last similar to 8 Gyr). This color structure is in qualitative agreement with recent model expectations where the break of the surface brightness profiles is the result of the interplay between a radial star formation cutoff and a redistribution of stellar mass by secular processes.
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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in: SICRIS
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