tenuous gas / spectral energy distribution / median energy / chemical enrichment / keV spectral energy distribution / nebular gas / energy statistics / low-energy end / vs. median source photon energy / helium shell burning products / normalized cumulative spectral energy distributions / nebular and hot bubble gas / imaging / binary systems / chemical differences / /
Organization
Astronomical Society / Chandra mission / HST UV / /
Person
Martin Guerrero / Hua Chu / Noam Soker / Garmire / Planetary Nebulae Rodolfo Montez Jr. / Joel H. Kastner / Tstar / /