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| Paper: |
A BJV Diagram Vision by Means of Simplified Models |
| Volume: |
464, Circumstellar Dynamics at High Resolution |
| Page: |
157 |
| Authors: |
Mota, B. C.; Carciofi, A. C.; Haubois, X.; Faes, D. M. |
| Abstract: |
Polarization is a great tool to investigate circumstellar disks. In
particular, it can be used to study one of the most intriguing type of
variability observed in Be stars, the aperiodic transition between the normal
B phase (without disk) to the Be phase (with disk). During this process the
disk is lost and rebuilt in time scales of months to years. Recent monitoring
studies have found a significant relationship between the polarization change
across the Balmer Jump and the polarization in the V-band; when plotted one
vs. the other in the so-called BJV diagram, a loop is formed that
tracks the process of disk formation and dissipation. This paper presents an
analysis of this relationship via simplified models using the 3-D non-LTE
Monte Carlo radiative transfer code HDUST. |
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