Discovery of a large dust disk around the nearby star AU Microscopii.
Science
; 303(5666): 1990-2, 2004 Mar 26.
Article
en En
| MEDLINE
| ID: mdl-14988511
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.
Buscar en Google
Bases de datos:
MEDLINE
Idioma:
En
Revista:
Science
Año:
2004
Tipo del documento:
Article
País de afiliación:
Estados Unidos