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Temperature and Density Fluctuations in Planetary Nebulae
1998
Astrophysical Journal
Preserved Fulltext
The determination of the chemical composition of gaseous nebulae depends on whether they contain Ñuctuations in density and/or temperature beyond those predicted by photoionization models or pressure balance. These Ñuctuations are strongly suggested by the unexpectedly large observed strengths of O II and C II recombination lines. If there are dense clumps, the derived abundances can be wrong by a factor of 2 or more. This paper does not address the physics of producing Ñuctuations but rather
doi:10.1086/305254
fatcat:golot2vrwnhdphgivnibo6cr3e