Imaging Disk Distortion Of Be Binary System δ Scorpii Near Periastron

Details Imaging Disk Distortion Of Be Binary System δ Scorpii Near Periastron Imaging Disk Distortion Of Be Binary System δ Scorpii Near Periastron

Jan 2012

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012aas...21934422c&link_type=abstract

American Astronomical Society, AAS Meeting #219, #344.22

Astronomy and Astrophysics

Astronomy

Scientific paper

The highly-eccentric Be binary system δ Sco was expected to reach periastron during early July 2011, when the distance between the primary and secondary was about a few times of the size of the primary disk. This opens a window to study the structure of gaseous disks around Be stars and how the disks respond to gravitational disturbance. Long-baseline multi-beam (≥ 3) interferometry allows us to reconstruct images of the star-disk system, which is independent of simplified models. We carried out 7 nights of H-band high angular resolution interferometric observations with the newly-commissioned 6-telescope mode of the MIRC combiner at CHARA one week after the predicted periastron date. We will present the first imaging results of the disk before and after the close-periastron interaction and discuss the the origin of the Be star phenomena

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