naa a22 4500 510789986 CHVBK 20180411092757.0 cr unu---uuuuu 180411e20130701xx s 000 0 eng 10.1134/S1063773713070037 doi (NATIONALLICENCE)springer-10.1134/S1063773713070037 Grankin K. Crimean Astrophysical Observatory, 98409, Nauchnyi, Crimea, Ukraine aut Magnetically active stars in Taurus-Auriga: Activity and rotation [Elektronische Daten] [K. Grankin] A sample of 70 magnetically active stars toward the Taurus-Auriga star-forming region has been investigated. The positions of the sample stars on the Rossby diagram have been analyzed. All stars are shown to be in the regime of a saturated dynamo, where the X-ray luminosity reaches its maximum and does not depend on the Rossby number. A correlation has been found between the lithium line equivalent width and the age of a solar-mass (from 0.7 to 1.2 M ⊙) pre-main-sequence star. The older the age, the smaller the Li line equivalent width. Analysis of the long-term photometric variability of these stars has shown that the photometric activity of the youngest stars is appreciably higher than that of the older objects from the sample. This result can be an indirect confirmation of the evolution of the magnetic field in premain-sequence stars from predominantly dipole and axisymmetric to multipole and nonaxisymmetric. Pleiades Publishing, Ltd., 2013 stars-physical properties nationallicence rotation nationallicence activity nationallicence pre-main-sequence stars nationallicence Astronomy Letters Springer US; http://www.springer-ny.com 39/7(2013-07-01), 446-457 1063-7737 39:7<446 2013 39 11443 https://doi.org/10.1134/S1063773713070037 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1134/S1063773713070037 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Grankin K. Crimean Astrophysical Observatory, 98409, Nauchnyi, Crimea, Ukraine aut NATIONALLICENCE 773 0- Astronomy Letters Springer US; http://www.springer-ny.com 39/7(2013-07-01), 446-457 1063-7737 39:7<446 2013 39 11443 Metadata rights reserved Springer special CC-BY-NC licence nationallicence SWISSBIB 510789986 BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer