Cited by 1,723Astrophysics and Star Formation StudiesStellar, planetary, and galactic studiesAstro and Planetary Science

Disk frequencies and lifetimes in Young clusters

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Haisch, Jr., Karl E., Lada, Elizabeth A., Lada, Charles J.·2001·The Astrophysical Journal

Abstract

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 survey for circumstellar disks in a sample of young clusters that both span a significant range in age (0.3-30 Myr) and contain statistically significant numbers of stars whose masses span nearly the entire stellar mass spectrum. Analysis of the combined survey indicates that the cluster disk fraction is initially very high (≥80%) and rapidly decreases with increasing cluster age, such that one-half the stars within the clusters lose their disks in ≲3 Myr. Moreover, these observations yield an overall disk lifetime of ~6 Myr in the surveyed cluster sample. This is the timescale for essentially all the stars in a cluster to lose their disks. This should set a meaningful constraint for the planet-building timescale in stellar clusters. The implications of these results for current theories of planet formation are briefly discussed.

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Crossref · 10.1086/320685

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  • Observations find that typical disk radii are only of order 100 AU even in regions of distributed star formation.

    “Moreover, even in regions of distributed star formation, where external photoevaporation is unlikely to play a defining role, observations find that typical disk radii are only of order 100 AU (Haisch et al., 2001; Andrews et al., 2009, 2010).”

    From The planet nine hypothesis (2019) · cites this paper as Haisch et al., 2001

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Authors
Haisch, Jr., Lada, E. A., & Lada, C. J.
Affiliations
  • University of Florida (US)
  • Smithsonian Astrophysical Observatory (US)
Venue
The Astrophysical Journal
Published
2001-06-01
Volume
553
Issue
2
Pages
L153-L156
ISSN
0004-637X (ISSN-L)
OpenAlex
W2067724125
Cited by
1,723
References
0
Citations by year
2026: 25 · 2025: 43 · 2024: 52 · 2023: 55 · 2022: 46 · 2021: 67 · 2020: 82 · 2019: 80 · 2018: 91 · 2017: 86 · 2016: 106 · 2015: 66 · 2014: 73 · 2013: 79 · 2012: 77
FWCI
31.58
Type
journal article
Language
en
Open access
Locations
  • The Astrophysical Journal (publishedVersion)
  • arXiv (Cornell University) (submittedVersion)
  • arXiv (Cornell University)
Funders
  • National Science Foundation (9733367)
  • National Aeronautics and Space Administration
  • Florida Space Grant Consortium
Topics
  • Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Astrophysics and Star Formation Studies
  • Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Stellar, planetary, and galactic studies
  • Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Astro and Planetary Science
Keywords
circumstellar disks, disk lifetime, young stellar clusters, NGC 2264, NGC 2362, NGC 2024, Trapezium cluster, IC 348, disk fraction, planet formation timescales, stellar ages

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