Visit ASIAA Homepage Registration Deadline: December 10, 2019 (Taiwan Time)
Workshop for Protoplanetary Disks and Exoplanets
December 17(Tue)-18(Wed), 2019
ASIAA R1203, Taipei, Taiwan

Invited Presentation

A flyby event caught in action?

Author(s): Ruobing Dong Baobab Liu

Presenter: Ruobing Dong (University of Victoria)

Z CMa is a pre-main sequence binary system embedded in its birth cradle. Both stars are undergoing outbursts at the moment. Previous Subaru observations have revealed a peculiar linear streamer extending for over 1000 AU from the binary. Recently, we carried out ALMA and JVLA continuum emission and CO observations of Z CMa. A point source in dust emission has been identified along the extension of the streamer. Hydrodynamics simulations have shown that such a configuration can be explained if the newly identified point source is a star that has recently flew by and perturbed the Z CMa disk system.

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