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- W2012035798 endingPage "958" @default.
- W2012035798 startingPage "928" @default.
- W2012035798 abstract "We use the ACS BViz data from the HUDF and all other deep HST ACS fields (including the GOODS fields) to find large samples of star-forming galaxies at z ~ 4 and ~5 and to extend our previous z ~ 6 sample. These samples contain 4671, 1416, and 627 B-, V-, and i-dropouts, respectively, and reach to extremely low luminosities [(0.01-0.04)L or MUV ~ -16 to -17], allowing us to determine the rest-frame UV LF and faint-end slope α at z ~ 4-6 to high accuracy. We find faint-end slopes α = -1.73 ± 0.05, -1.66 ± 0.09, and -1.74 ± 0.16 at z ~ 4, ~5, and ~6, respectively, suggesting that the faint-end slope is very steep and shows little evolution with cosmic time. We find that M brightens considerably in the 0.7 Gyr from z ~ 6 to ~4 (by ~0.7 mag from M = -20.24 ± 0.19 to -20.98 ± 0.10). The observed increase in the characteristic luminosity over this range is almost identical to that expected for the halo mass function, suggesting that the observed evolution is likely due to the hierarchical coalescence and merging of galaxies. The evolution in ϕ* is not significant. The UV luminosity density at z ~ 6 is modestly lower than (0.45 ± 0.09 times) that at z ~ 4 (integrated to -17.5 mag) although a larger change is seen in the dust-corrected SFR density. We thoroughly examine published LF results and assess the reasons for their wide dispersion. We argue that the results reported here are the most robust available. The extremely steep faint-end slopes α found here suggest that lower luminosity galaxies play a significant role in reionizing the universe. Finally, recent search results for galaxies at z ~ 7-8 are used to extend our estimates of the evolution of M* from z ~ 7-8 to z ~ 4." @default.
- W2012035798 created "2016-06-24" @default.
- W2012035798 creator A5013271839 @default.
- W2012035798 creator A5015193232 @default.
- W2012035798 creator A5032025507 @default.
- W2012035798 creator A5083572056 @default.
- W2012035798 date "2007-12-01" @default.
- W2012035798 modified "2023-10-03" @default.
- W2012035798 title "UV Luminosity Functions at<i>z</i>∼4, 5, and 6 from the Hubble Ultra Deep Field and Other Deep<i>Hubble Space Telescope</i>ACS Fields: Evolution and Star Formation History" @default.
- W2012035798 cites W1554821233 @default.
- W2012035798 cites W1560669094 @default.
- W2012035798 cites W1765016072 @default.
- W2012035798 cites W1787231361 @default.
- W2012035798 cites W1792022697 @default.
- W2012035798 cites W1841529699 @default.
- W2012035798 cites W1964084977 @default.
- W2012035798 cites W1964539132 @default.
- W2012035798 cites W1964995422 @default.
- W2012035798 cites W1965134192 @default.
- W2012035798 cites W1966817763 @default.
- W2012035798 cites W1969070606 @default.
- W2012035798 cites W1969291367 @default.
- W2012035798 cites W1971204277 @default.
- W2012035798 cites W1972232491 @default.
- W2012035798 cites W1974174849 @default.
- W2012035798 cites W1976181323 @default.
- W2012035798 cites W1977752712 @default.
- W2012035798 cites W1980454973 @default.
- W2012035798 cites W1980904486 @default.
- W2012035798 cites W1983188969 @default.
- W2012035798 cites W1988827343 @default.
- W2012035798 cites W1992380920 @default.
- W2012035798 cites W1993491708 @default.
- W2012035798 cites W1994671833 @default.
- W2012035798 cites W1996537612 @default.
- W2012035798 cites W2000470824 @default.
- W2012035798 cites W2005411300 @default.
- W2012035798 cites W2007649291 @default.
- W2012035798 cites W2008605521 @default.
- W2012035798 cites W2010048019 @default.
- W2012035798 cites W2013199462 @default.
- W2012035798 cites W2015295900 @default.
- W2012035798 cites W2022930874 @default.
- W2012035798 cites W2023270129 @default.
- W2012035798 cites W2024739948 @default.
- W2012035798 cites W2025458316 @default.
- W2012035798 cites W2027251073 @default.
- W2012035798 cites W2028508207 @default.
- W2012035798 cites W2029965202 @default.
- W2012035798 cites W2030033273 @default.
- W2012035798 cites W2031076243 @default.
- W2012035798 cites W2033731878 @default.
- W2012035798 cites W2037656155 @default.
- W2012035798 cites W2037932817 @default.
- W2012035798 cites W2039833992 @default.
- W2012035798 cites W2040441522 @default.
- W2012035798 cites W2046338642 @default.
- W2012035798 cites W2056152052 @default.
- W2012035798 cites W2056407833 @default.
- W2012035798 cites W2061882936 @default.
- W2012035798 cites W2062298152 @default.
- W2012035798 cites W2063370670 @default.
- W2012035798 cites W2066202006 @default.
- W2012035798 cites W2066702052 @default.
- W2012035798 cites W2067558684 @default.
- W2012035798 cites W2068368465 @default.
- W2012035798 cites W2070677059 @default.
- W2012035798 cites W2070696493 @default.
- W2012035798 cites W2071864147 @default.
- W2012035798 cites W2075105252 @default.
- W2012035798 cites W2081243021 @default.
- W2012035798 cites W2082592033 @default.
- W2012035798 cites W2084195309 @default.
- W2012035798 cites W2086248392 @default.
- W2012035798 cites W2091178880 @default.
- W2012035798 cites W2091867375 @default.
- W2012035798 cites W2093468672 @default.
- W2012035798 cites W2093692852 @default.
- W2012035798 cites W2098171023 @default.
- W2012035798 cites W2098600168 @default.
- W2012035798 cites W2099827831 @default.
- W2012035798 cites W2100514692 @default.
- W2012035798 cites W2105929869 @default.
- W2012035798 cites W2114909577 @default.
- W2012035798 cites W2114951275 @default.
- W2012035798 cites W2116990813 @default.
- W2012035798 cites W2118572026 @default.
- W2012035798 cites W2123407547 @default.
- W2012035798 cites W2125648405 @default.
- W2012035798 cites W2126711037 @default.
- W2012035798 cites W2129867880 @default.
- W2012035798 cites W2130188086 @default.
- W2012035798 cites W2134596570 @default.
- W2012035798 cites W2134712793 @default.
- W2012035798 cites W2135281788 @default.
- W2012035798 cites W2135884118 @default.
- W2012035798 cites W2138587471 @default.
- W2012035798 cites W2140887005 @default.