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机译:A deep look into the cores of young clusters
European Southern Observatory, Alonso de Cordova 3107, Vitacura, Casilla 19001, Santiago 19, Chile;
ZAH, Landessternwarte, Konigstuhl, 69117 Heidelberg, Germany;
Instituto de Astroffsica de Canarias, C/ via Láctea s/n, 38205 La Laguna, Tenerife, SpainLaboratorio de Astrofísica Espacial y Ffsica Fundamental (LAEFF-INTA), PO Box 78, 28691, Villanueva de la Canada, Madrid, SpainAstronomy Department, University of California, Berkeley, CA 94720, USAEuropean Southern Observatory, Karl Schwartzschild Str. 2, 85748 Garching bei Munchen, Germany;
stars: formation; stars: low-mass; brown dwarfs; stars: planetary system; techniques: high angular resolution; stars: early-type;