photoionizing
Look at other dictionaries:
Orion Nebula — The entire Orion Nebula in visible light. Credit: NASA/ESA Observation data: J2000 epoch … Wikipedia
Dication — Distinguish from dictation. A dication is any cation, of general formula 2+, formed by the removal of two electrons from a neutral species. Diatomic dications corresponding to stable neutral species (e.g. H22+ formed by removal of two electrons… … Wikipedia
IC 443 — Supernova name = [http://simbad.u strasbg.fr/simbad/sim id?protocol=html Ident=ic+443 Supernova Remnant IC 443] caption = Part of the northeastern shell of IC 443, aka the Jellyfish Nebula. Credit: Jean Charles Cuillandre (CFHT), Hawaiian… … Wikipedia
