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Paper: How Much Dusty Star Formation Has Been Missed at z∼2 through UV/Optical Selections?
Volume: 446, Galaxy Evolution: Infrared to Millimeter Wavelength Perspective
Page: 281
Authors: Riguccini, L.; Le Floc'h, E.
Abstract: We apply the UV/optical criteria BM/BX, BzK and IRAC Peakers to a sample of 24μ m selected galaxies from the COSMOS field with the goal of quantifying their contribution to the 8μ m rest-frame Luminosity Function (LF) at z∼2. We slightly modify the BM/BX and BzK criteria to adapt them to the COSMOS filters. 93% of the MIPS sources with 1.4 < z < 2.5 are properly selected as BzK and 68% of the MIPS sources with 1.5 < z < 3 are IRAC Peakers while only 50% of those with 1.5 < z < 2.8 are selected as BM/BX. The BzK criterion is independent of dust extinction while the BM/BX is highly affected by this phenomenon. We compute the 8μ m rest-frame LF for all the sources and we find the same proportions for the contribution of these different selections to the LF at z∼2.
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