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Paper: Monitoring the Polarimetric Variability of δ Scorpii
Volume: 464, Circumstellar Dynamics at High Resolution
Page: 239
Authors: Bednarski, D.; Carciofi, A. C.
Abstract: The Be star δ Scorpii is an interesting binary system, whose primary companion started forming a circumstellar disk in 2000, being since then classified as Be. This work presents the results of a long-term monitoring of this star in broad-band imaging polarimetry. The observational data collected since 2006 in the Pico dos Dias Observatory (Brazil) show a variable polarization that seems to correlate with the photometric light curve. From this data we see that the disk density varied since 2006; furthermore, the data suggests that there was some disturbance of the disk during the last periastron passage in July, 2011.
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