Results of magnetic field measurements in young stars DO Tau, DR Tau, and DS Tau Author(sстатья
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Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
Аннотация:The results of longitudinal magnetic field measurements B (z) in the hot accretion spot in three classical T Tauri stars (CTTS) are reported. In all three stars the magnetic field is detected at a level above 2 sigma in the formation region of the narrow component of the He I 5876 emission line. In the case of DS Tau the longitudinal field B (z) in the hot spot was also measured from the narrow emission components of the Na I D lines, implying +0.8 +/- 0.3 kG, which is equal to the B (z) field component measured from the He I 5876 line. Our results suggest that the 6-m telescope of the Special Astrophysical Observatory can be used to study magnetic fields in the hot spots of CTTS with magnitudes down to 13(m), making it possible to double the number of stars of this type with measured B (z) values in the accretion zone.