Computer Science – Databases
Scientific paper
Dec 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008aipc.1082...99l&link_type=abstract
CLASSIFICATION AND DISCOVERY IN LARGE ASTRONOMICAL SURVEYS: Proceedings of the International Conference: ``Classification and Di
Computer Science
Databases
1
Quasars, Active Or Peculiar Galaxies, Objects, And Systems, Astronomical Catalogs, Atlases, Sky Surveys, Databases, Retrieval Systems, Archives, Etc., Astronomical Observations
Scientific paper
The multi-wavelength properties of the SDSS galaxies are investigated, divided into fine classes using morphology, color and spectral features. We find that HII blue early-type galaxies (BEGs) have bluer centers than passive BEGs, whereas HII red early-type galaxies (REGs) have bluer outside than passive REGs. The optical-near-infrared (NIR) color-color relation of red late-type galaxies (RLGs) shows that RLGs may have not only young stars but also a large fraction of old stars. The detection fraction of REGs in the radio significantly depends on their optical absolute magnitude, whereas that of late-type galaxies does not, which implies the difference in their radio sources: AGN and star formation.
Choi Yun-Young
LEE Joon Hyeop
Lee Myung Gyoon
Park Changbom
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