O N TH E MAGNETI C FIEL D ORIGI N O F A p STAR S A . ... We assume that the surface magnetic field strength may be influenced by the high energy flux of cosmic rays (CR) and by intensity of hard ultraviolet radiation (UV), changing the effectivity of diffusion processes. ... FOSSIL MAGNETIC FIELD STRENGTH We study the dependence of the fossil field strength of stars upon ionizing radiation power with the computer program of numerical study of protostar evolution (see Dudorov, this volume) . ...

Magnetic Stars, 2011, pp. ... It follows, in particular, from Fig. 1a, where points show the central intensity of line in 2008 ­ 2009, and asterisks -- the ELODIE Archive (EA) spectra in 2002 ­ 2003 smoothed to the resolution of the MSS. ... Figure 2a demonstrates the distribution of temperature in the atmosphere in the phase = 0.07 and Fig. 2b -- in the phase = 0.53 of the rotation period, obtained from the hydrogen line profiles in 2008 ­ 2009. ...