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Lecture
HII Regions: Ionising Stars
Description
This lecture covers the concept of HII regions in the interstellar medium, discussing the ionisation of hydrogen by massive stars with high energy. It also explores the characteristics of ionising stars, their luminosity, lifetime, and surface temperature, emphasizing the different types of stars and their evolution. The lecture delves into the radio emission in normal galaxies and the role of radio telescopes in studying the radio universe, showcasing images from various observatories.
Official source
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