Solving the mysteries of the diffuse interstellar medium with high-resolution UV spectroscopy |
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| Authors: | Jeffrey L Linsky |
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| Institution: | 1. JILA/University of Colorado and National Institute of Standards and Technology, Boulder, CO, 80309-0440, USA
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| Abstract: | Understanding the complex structure, dynamics, and ionization of gas in the nearby interstellar medium is required before one can realistically model interstellar gas in other galaxies. High-resolution ultraviolet spectra provide the essential data for such studies because the resonance lines of most important atoms, ions, and molecules are located in the ultraviolet, and high spectral resolution is needed to resolve line profiles and determine the velocity structure along a line of sight. I list ten important physical questions concerning interstellar gas that require a more sensitive spectrometer than STIS and the desired spectral resolution to answer these questions. |
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