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| Paper: |
Global Evolution of Galaxies |
| Volume: |
240, Gas and Galaxy Evolution: A Conference in Honor of the 20th Anniversary of the VLA |
| Page: |
9 |
| Authors: |
Fall, S. Michael |
| Abstract: |
The co-moving densities of stars and interstellar gas, metals, and dust in galaxies evolve according to a series of coupled conservation-type equations. The purpose of this article is to explore some of these ``global'' relations. This approach enables us to combine observations of the emission and absorption in galaxies and thus to relate their average stellar and interstellar contents. Applications of the method include predictions of the global history of star formation from absorption-line observations and corrections to the cosmic UV emissivity for absorption by dust. |
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