Circumstellar disks in the Trapezium Cluster
We discuss the recent discovery and study of circumstellar disks in the Trapezium Cluster via two techniques. First we discuss the population of objects sometimes called ‘proplyds’, as revealed by ionizing radiation from the central massive OB stars of the Trapezium, and the fraction of these ionized objects that are associated with stars. Second, we look at the wider cluster population and the statistical occurrence of circumstellar disks detected through the more traditional signature of infrared excess. Both techniques reveal that a large fraction (≈50–80%) of the young stars in the Trapezium Cluster are likely surrounded by disks.
KeywordsRadio Source Young Star Circumstellar Disk Compact Radio Source Orion Nebula
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