Direct Imaging of Bridged Twin Protoplanetary Disks in a Young Multiple Star

作者：Mayama Satoshi^*; Tamura Motohide; Hanawa Tomoyuki; Matsumoto Tomoaki; Ishii Miki; Pyo Tae Soo; Suto Hiroshi; Naoi Takahiro; Kudo Tomoyuki; Hashimoto Jun; Nishiyama Shogo; Kuzuhara Masayuki; Hayashi Masahiko

来源：Science, 2010, 327(5963): 306-308.

DOI：10.1126/science.1179679

Studies of the structure and evolution of protoplanetary disks are important for understanding star and planet formation. Here we present the direct image of an interacting binary protoplanetary system. Both circumprimary and circumsecondary disks are resolved in the near-infrared. There is a bridge of infrared emission connecting the two disks and a long spiral arm extending from the circumprimary disk. Numerical simulations show that the bridge corresponds to gas flow and a shock wave caused by the collision of gas rotating around the primary and secondary stars. Fresh material streams along the spiral arm, consistent with the theoretical scenarios in which gas is replenished from a circummultiple reservoir.

• 出版日期2010-1-15
• 单位中国科学院国家天文台