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This study explores the emission mechanisms in star formation regions, focusing on HII regions and their characteristics. We analyze various spectral lines, including hydrogen-alpha (Hα) and radio emissions from CO, tracing the ionization processes driven by O/B stars. The interactions with dust and the resulting free-free emissions are also examined. Additionally, we discuss the age distribution of star formation and the impacts of supernova shocks and cosmic rays, utilizing optical colors and synchrotron radiation for further insights into these dynamic regions.
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Emission from Star Formation Regions DMCs H etc HII Regions Radio Lines: CO ionize Radio Free-free Star Formation UV O/B stars dust age & mix FIR SN Optical colors/ spectra shocks c. rays Radio Synchrotron