The star Eta Carinae emits unusually strong radiation in this region, and observations of the star in this region of the spectrum have revealed a complex nebular structure.
Red Giants give off very little light in this region and thus emissions in this region can be used to test "Dividing Line" models that separate giant stars from Red Giants. The star Eta Carinae emits unusually strong radiation in this region, and observations of the star in this region of the spectrum have revealed a complex nebular structure. The radiation from black holes circled by accretion disks comes primarily in this band, as does most of the radiation from the corona of the Sun. Due to the opacity of the Earth's atmosphere, most observations in this band occur in high-altitude balloons or through space-based telescopes such as Chandra and EXOSAT. For ten points, name this portion of the electromagnetic spectrum that lies between the Ultraviolet and Gamma Ray bands.  
Red Giants give off very little light in this region and thus emissions in this region can be used to test "Dividing Line" models that separate giant stars from Red Giants.
{X-Rays}