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Anywhere in the Universe, gas that is sufficiently dense will form a range of molecules. Emissions from these molecules - often in the radio rgime - excited by collisions can be detected in many locations in our Galaxy and in external galaxies, including some of the most distant objects in the Universe. Astronomers use the information contained in the detected radiation to infer the conditions in the emitting region, and so are able to investigate the processes occurring in, for example, star forming regions, circumstellar matter, active galactic nuclei, and the early Universe.
- Format: Inbunden
- ISBN: 9780198501589
- Språk: Engelska
- Antal sidor: 558
- Utgivningsdatum: 1998-11-01
- Förlag: OUP Oxford