SINGG and
SUNGG are surveys of star
formation in nearby galaxies selected by gas rich galaxies using
Hα and ultraviolet observations. Since a gaseous medium is
required for star formation, these surveys sample the galaxies that
could form stars and provide a view of local star formation demographics
which is not biased by optical and infrared selection effects.
Galaxies in these surveys were selected based solely on their neutral
gas (HI) content from the HI Parkes
All Sky Survey (HIPASS).