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astro-ph2005
Temperature fluctuations in HII regions: ionization by Cosmic Rays as a key mechanism
C. Giammanco, J. E. Beckman
We present a detailed model capable of explaining quantitatively the temperature fluctuations observed in luminous, large HII regions. The model is based on two assumptions which w…
astro-ph2005
Effects of photon escape on diagnostic diagrams for HII regions
C. Giammanco, J. E. Beckman, B. Cedres
In this article we first outline the mounting evidence that a significant fraction of the ionizing photons emitted by OB stars within HII regions escape from their immediate surrou…