Submillimeter constraints on dust near Lindroos' POST T Tauri stars

Details Submillimeter constraints on dust near Lindroos' POST T Tauri stars Submillimeter constraints on dust near Lindroos' POST T Tauri stars

Aug 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994aj....108..661j&link_type=abstract

The Astronomical Journal, vol. 108, no. 2, p. 661-665

Astronomy and Astrophysics

Astronomy

15

Cepheid Variables, Charge Coupled Devices, Star Clusters, Stellar Envelopes, Submillimeter Waves, Astronomical Photometry, Color-Magnitude Diagram, Stellar Magnitude

Scientific paper

Young stars from the dynamical sample identified by Lindroos (A&A, 156,223 (1986)) have been observed at 800 micrometers wavelength using the James Clerk Maxwell Telescope on Mauna Kea. The new data are used to constrain the mass of circumstellar dust around these stars. The Lindroos sample is dominated by low-mass stars of age (3-150) x 106 yr, intermediate in age between the T Tauri and main-sequence stars. When combined with previous measurements, the present observations are compatible with the depletion of circumstellar dust on a time scale tau approximately 107.0 yr. If this dust is present in circumstellar disks, then tau represents the lifetime of these disks.

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