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QUENCHING DEPENDS ON MORPHOLOGIES: IMPLICATIONS FROM THE ULTRAVIOLET-OPTICAL RADIAL COLOR DISTRIBUTIONS IN GREEN VALLEY GALAXIES
Astrophysical Journal Letters
In this Letter, we analyse the radial UV-optical color distributions in a sample of low redshift green valley (GV) galaxies, with the Galaxy Evolution Explorer (GALEX)+Sloan Digital Sky Survey (SDSS) images, to investigate how the residual recent star formation distribute in these galaxies. We find that the dust-corrected u-r colors of early-type galaxies (ETGs) are flat out to R_90, while the colors turn blue monotonously when r>0.5R_50 for late-type galaxies (LTGs). More than a half of thedoi:10.1088/2041-8205/792/1/l4 fatcat:574trzmxqzgjfbympzwfrbsjey