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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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