Disk Frequencies and Lifetimes in Young Clusters

  title={Disk Frequencies and Lifetimes in Young Clusters},
  author={K. Haisch and E. Lada and C. Lada},
  journal={The Astrophysical Journal},
We report the results of the first sensitive L-band survey of the intermediate-age (2.5-30 Myr) clusters NGC 2264, NGC 2362, and NGC 1960. We use JHKL colors to obtain a census of the circumstellar disk fractions in each cluster. We find disk fractions of 52% ± 10%, 12% ± 4%, and 3% ± 3% for the three clusters, respectively. Together with our previously published JHKL investigations of the younger NGC 2024, Trapezium, and IC 348 clusters, we have completed the first systematic and homogeneous… Expand

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