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- Title
Discovery of a large dust disk around the nearby star AU Microscopii.
- Authors
Kalas, Paul; Liu, Michael C; Matthews, Brenda C
- Abstract
We present the discovery of a circumstellar dust disk surrounding AU Microscopii (AU Mic, GJ 803, HD 197481). This young M star at 10 parsec has the same age and origin as beta Pictoris, another nearby star surrounded by a dust disk. The AU Mic disk is detected between 50 astronomical units (AU) and 210 AU radius, a region where dust lifetimes exceed the present stellar age. Thus, AU Mic is the nearest star where we directly observe the solid material required for planet formation. Because 85% of stars are M-type, the AU Mic disk provides new clues on how the majority of planetary systems might form and evolve.
- Publication
Science (New York, N.Y.), 2004, Vol 303, Issue 5666, p1990
- ISSN
1095-9203
- Publication type
Journal Article
- DOI
10.1126/science.1093420