IRACselected EROs with DEEP2 zs - PowerPoint PPT Presentation

Title: IRACselected EROs with DEEP2 zs


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IRAC-selected EROs (with DEEP2 zs)
Gillian Wilson (Spitzer Science Center)
Sample is selected to contain sources with 3.6
(equivalent to Vega R-K 5.0 ) Use Subaru
image with limiting mag R27.0 Several
thousand sources !! For Letter look at those
with DEEP2 spectroscopy 89 EROs
Early-type? Dusty Star-forming? AGN?

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Eight Empirically Measured Non-evolving
Templates
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Tracks for our 8 SEDs as a Function of Redshift
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ERO population separation using IRAC Color Cut
-0.75
0.0
Bulge-dominated
Dusty SF
AGN dominated
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Example of early type 12004426
DEEP2 PHOTOZ CWW E
U B G R I K ch1 2 3 4
mips24
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Example of dusty star-forming galaxy 12100899
DEEP2 PHOTOZ m82
U B G R I K ch1 2 3 4
mips24
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13004276 Early Type
10 arcsec
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13048898 Early Type
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13018312 Irregular/Peculiar
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12100899 Merger
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13004291 Merger
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13034406 Two cores - merger
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13026391 Spiral
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13011748 Spiral (EUV)
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13010765 Interaction? Confusion? E 24
line-broadening
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12003738 Spiral (E 24) AGN?
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Restframe U-B vs Observed 3.6 8.0
The dusty-SF galaxies lie in the green valley
U-B
3.6 8.0
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Restframe U-B vs M_B