Sub-millimeter observations reveal the star-formation activity obscured by
dust in the young Universe. It still remains unclear how galaxies detected at
sub-millimeter wavelengths are related to ultraviolet/optical-selected galaxies
in terms of their observed quantities, physical properties, and evolutionary
stages. Deep near- and mid-infrared observational data are crucial to
characterize the stellar properties of galaxies detected with sub-millimeter
emission. In this study, we make use of a galaxy catalog from the Spitzer
Matching Survey of the UltraVISTA ultra-deep Stripes. By cross-matching with a
sub-millimeter source catalog constructed with the archival data of the Atacama
Large Millimeter/submillimeter Array (ALMA), we search for galaxies at z> 2
with a sub-millimeter detection in our galaxy catalog. We find that the
ALMA-detected galaxies at z> 2 are systematically massive and have redder
Ks​-[4.5] colors than the non-detected galaxies. The redder colors are
consistent with the larger dust reddening values of the ALMA-detected galaxies
obtained from SED fitting. We also find that the ALMA-detected galaxies tend to
have brighter 4.5 μm magnitudes. This may suggest that they tend to have
smaller mass-to-light ratios, and thus, to be younger than star-forming
galaxies fainter at sub-millimeter wavelengths with similar stellar masses. We
identify starburst galaxies with high specific star-formation rates among both
ALMA-detected and non-detected SMUVS sources. Irrespective of their brightness
at sub-millimeter wavelengths, these populations have similar dust reddening
values, which may suggest a variety of dust SED shapes among the starburst
galaxies at z>2.Comment: 14 pages, 7 figures, 2 tables, Accepted for publication in Ap