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Direct imaging of bridged twin protoplanetary disks in a young multiple star

Published online by Cambridge University Press:  10 November 2011

Satoshi Mayama
Affiliation:
The Graduate University for Advanced Studies (SOKENDAI), Shonan International Village, Hayama-cho, Miura-gun, Kanagawa, 240-0193, Japan email: mayama_satoshi@soken.ac.jp
Motohide Tamura
Affiliation:
The Graduate University for Advanced Studies (SOKENDAI), Shonan International Village, Hayama-cho, Miura-gun, Kanagawa, 240-0193, Japan email: mayama_satoshi@soken.ac.jp National Astronomical Observatory of Japan, 2-21-1, Osawa, Mitaka, Tokyo 181-8588Japan
Tomoyuki Hanawa
Affiliation:
Center for Frontier Science, Chiba University, Inage-ku, Chiba, 263-8522, Japan
Tomoaki Matsumoto
Affiliation:
Faculty of Humanity and Environment, Hosei University, Fujimi, Chiyoda-ku, Tokyo 102-8160, Japan
Miki Ishii
Affiliation:
Subaru Telescope, National Astronomical Observatory of Japan, 650 North A'ohoku Place, Hilo, Hawaii, 96720, USA
Tae-Soo Pyo
Affiliation:
Subaru Telescope, National Astronomical Observatory of Japan, 650 North A'ohoku Place, Hilo, Hawaii, 96720, USA
Hiroshi Suto
Affiliation:
National Astronomical Observatory of Japan, 2-21-1, Osawa, Mitaka, Tokyo 181-8588Japan
Takahiro Naoi
Affiliation:
National Astronomical Observatory of Japan, 2-21-1, Osawa, Mitaka, Tokyo 181-8588Japan
Tomoyuki Kudo
Affiliation:
National Astronomical Observatory of Japan, 2-21-1, Osawa, Mitaka, Tokyo 181-8588Japan
Jun Hashimoto
Affiliation:
The Graduate University for Advanced Studies (SOKENDAI), Shonan International Village, Hayama-cho, Miura-gun, Kanagawa, 240-0193, Japan email: mayama_satoshi@soken.ac.jp National Astronomical Observatory of Japan, 2-21-1, Osawa, Mitaka, Tokyo 181-8588Japan
Shogo Nishiyama
Affiliation:
Department of Astronomy, Kyoto University, Kitashirakawa-Oiwake-cho, Sakyo-ku, Kyoto, 606-8502, Japan
Masayuki Kuzuhara
Affiliation:
University of Tokyo, Hongo, Tokyo 113-0033, Japan
Masahiko Hayashi
Affiliation:
University of Tokyo, Hongo, Tokyo 113-0033, Japan
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Abstract

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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 where gas is replenished from a circummultiple reservoir.

Type
Contributed Papers
Copyright
Copyright © International Astronomical Union 2011

References

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