Pressure and density gradients in H II Regions |
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| Authors: | José Franco Stan E Kurtz José A GarcÍa-Barreto Guillermo GarcÍa-Segura Eduardo de la Fuente Peter Hofner Alejandro Esquivel |
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| Institution: | 1.Instituto de Astronomía-UNAM,Mexico;2.NAIC and the University of Puerto Rico,Puerto Rico;3.Universidad Iberoamericana,Mexico |
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| Abstract: | Here we discuss the effects of large ambient pressures and decreasing density gradients on the observed properties of dusty UC hii regions. Dust absorption can effectively reduce the size of the photo ionized region, and density gradients can modify the spectral index of the emission. The effects of the density gradients seem to be present in both galactic and extragalactic HII regions. |
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