NASA NTRS · 19890051323
Circumstellar material associated with solar-type pre-main-sequence stars - A possible constraint on the timescale for planet building
Abstract
The observed frequency distribution of near-IR excesses for a sample of 83 stars in the Taurus-Auriga star-forming complex is used to provide an estimate of the number of solar-type premain-sequence (PMS) stars surrounded by circumstellar disks. The results suggest that if all such PMS stars are initially surrounded by disks, then disk lifetimes must range from much less than 3 x 10 to the 6th yr to about 10 to the 7th yr, providing a constraint on the time available for planet building. PMS stars with small near-IR excesses, but significant mid-IR and far-IR excesses, provide some evidence for changes in disk structure with time.
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Strom, Karen M., Strom, Stephen E., Edwards, Suzan, Cabrit, Sylvie, Skrutskie, Michael F.. 1989-05-01. Circumstellar material associated with solar-type pre-main-sequence stars - A possible constraint on the timescale for planet building. https://ntrs.nasa.gov/citations/19890051323
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