[PDF] Top 20 Zeeman doppler imaging of the surface activity and magnetic fields of young solar-type stars

... some stars the differential rotation apparent is so small that the star seems almost a solid-body rotator, while other stars exhibit differential rotation much greater than ...few young ... See full document

... The magnetic fields, activity and dynamos of young solar-type stars can be empir- ically studied using time-series of spectropolarimetric observations and tomographic ... See full document

... the magnetic fields of young solar-type stars to improve the understanding of the early development of solar and stellar dynamos and activity ...of young ... See full document

... Frequently these errors are over-estimated and χ 2 < 1 is often achieved. Alternatively, if χ 2 > 1, it means that the fit accuracy never reaches the noise level. This is usually the case when there has been spot ... See full document

... large-scale magnetic field strengths and topologies for 15 solar-type stars close the ZAMS, with ages ranging from 20 to 250 ...The stars have a range of complex magnetic ge- ... See full document

... 1.2 Activity of Solar-Type Stars The solar-stellar connection is comparative stellar astrophysics that allows the Sun to be studied from a different perspective using stars with ... See full document

... of surface activity on young solar-type stars provides an opportu- nity to improve understanding of stellar dynamos and indirectly gain insight into early solar ... See full document

... active young stars provides for a comparison with the predictions of stellar dynamo ...active young stars show evidence of a polar spot as well as detectable lower latitude ...the ... See full document

... of solar-type planet hosting ...planet-hosting stars observed as part of the BCool magnetic snapshot survey, we obtained magnetic observations of a further 19 planet-hosting ... See full document

... of solar-type planet-hosting ...planet-hosting stars observed as part of the BCool magnetic snapshot survey, we obtained magnetic observations of a further 19 planet-hosting ... See full document

... of surface magnetic fields against SNR LSD , with the figure as described in ...the magnetic field on the surface of many mature low-activity ...a surface magnetic ... See full document

... of surface magnetic fields against SNR LSD , with the figure as described in ...the magnetic field on the surface of many mature low-activity ...a surface magnetic ... See full document

... the Doppler imaging process is inherently more sensitive to longitude than latitude position and it is only by repeatedly observing the same features as they move through the stellar rotational profile that ... See full document

... paper, Doppler imaging of the young solar-type star R58 shows that rapidly rotating stars have vastly different photospheric spot features compared with those of the modern-day ... See full document

... – stars: activity – stars: individual: HD 35296 – stars: individual: HD 29615 – stars: magnetic field – stars: solar-type – ...of magnetic ... See full document

... T Magnetic activity and rotation are known to be intimately linked for low-mass ...stellar magnetic field affects the rate of angular-momentum loss from a ...that Zeeman–Doppler ... See full document

... Another suggestion to explain coronal saturation has been put forward by St¸epie´ n et al. (2001) who suggest that coronal saturation is the result of the coronal emitting re- gions of a star being completely filled. ... See full document

... Another suggestion to explain coronal saturation has been put forward by Ste¸pie´n et al. (2001) who suggest that coronal satu- ration is the result of the coronal emitting regions of a star being completely filled. ... See full document

... 6.2 Fundamental Parameters of more G-type, Active, Young, Solar-Type Stars with Doppler Images (adapted from Strassmeier et al.. B.4 Input Line Format for autoextr ...[r] ... See full document

... kG-strength magnetic fields observed in young stars a fossil field left over from their formation or are they generated by a dynamo? We use radiation non-ideal magnetohydrody- namics ... See full document