title: Direct imaging of bridged twin protoplanetary disks in a young multiple star.
abstract: 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.
authors: The Graduate University for Advanced Studies, Shonan International Village, Hayama-cho, Miura-gun, Kanagawa 240-0193, Japan. mayama_satoshi@soken.ac.jp
authors: Satoshi
authors: S
authors: Mayama
authors: Motohide
authors: M
authors: Tamura
authors: Tomoyuki
authors: T
authors: Hanawa
authors: Tomoaki
authors: T
authors: Matsumoto
authors: Miki
authors: M
authors: Ishii
authors: Tae-Soo
authors: TS
authors: Pyo
authors: Hiroshi
authors: H
authors: Suto
authors: Takahiro
authors: T
authors: Naoi
authors: Tomoyuki
authors: T
authors: Kudo
authors: Jun
authors: J
authors: Hashimoto
authors: Shogo
authors: S
authors: Nishiyama
authors: Masayuki
authors: M
authors: Kuzuhara
authors: Masahiko
authors: M
authors: Hayashi