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The dipper optical light curves in young stellar objects are commonlyinterpreted as partial or total occultation of the stellar radiation by dustsurrounding the star.  In this work, we analyze the amplitude of the optical light curve of V715Per, located in the young star forming region IC 348. Observations gatheredover the years suggest that the light curve can be explained by dust extinctionevents.  In our model, the dust is distributed inside the magnetosphere according tothe strength of the stellar magnetic field. The dust distribution is modulatedby the vertical component of the field, whose axis is misaligned with respectto the rotational axis. We include a model for the evaporation of the dustreaching the magnetosphere in order to consistently calculate its distribution.  For V715 Per, there is dust in the optically thick warp at the disktruncation radius. We suggest that the optical light curve is explained byextinction caused by dust reaching inside the magnetosphere. The dustdistribution is optically thin and due to the high temperature and low density,it cannot survive for a long time. However because the grains rapidly movetowards the stellar surface and the sublimation is not instantaneous, there isa layer of dust covering the magnetosphere responsible for the extinction.  Dust surviving the harsh conditions of the magnetospheric accretion flow maybe responsible for some of the dipper light curves.

The dipper light curve of V715 Per: is there dust in the magnetosphere?