A large sample of low surface brightness disk galaxies from SDSS

摘要

We present the properties of a large sample (12,282) of nearly face-on low surface brightness disk galaxies selected from the main galaxy sample of SDSS-DR4. Those properties includes B-band central surface brightness μ0(B),scale lengths h,distances D,integrated magnitudes,colors and some resulted relations. This sample has μ0(B) from 22 to 24.5 mag arcsec-2 with a median value of 22.44 mag arcsec-2. They are quite bright with MB taking values from-18 to-23 mag with a median value of-20.08 mag. The disk scale lengths h are from 2 kpc to 19 kpc. There exist clear correlations between log h and Mb,logh and log D. Both the optical-optical and optical-NIR color-color relations show most of them have a mix of young and old stellar populations.