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1 results

  • Evolutionary Trends in Star Formation

  • J. S. Urquhart
  • Journal:
    Proceedings of the International Astronomical Union / Volume 18 / Issue S380 / December 2022
    Published online by Cambridge University Press:
    07 February 2024, pp. 135-151
    Print publication:
    December 2022
    • Article
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      • Open access
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  • Over the past 20 years, the Galactic plane has been surveyed at high resolution at wavelengths from 1 micron through to 20 cm. The combination of these surveys has produced large samples of deeply embedded young stars located across the Galactic disc. These continuum surveys are complemented by spectral line surveys of thermal, radio recombination, and molecular maser (OH, H2O, CH3OH) lines. The identified sources cover the whole range of evolutionary stages in the star formation process, allowing the physical properties of these stages to be measured. This information has been used to calculate the star formation efficiency and star formation rate of the Milky Way and to evaluate the impact of environment and location within the disc. This review provides an overview of some of the most significant studies in recent years and discusses how the evolutionary sequence has been used to investigate the correlation of other star formation tracers and maser associations.