Astronomy and Astrophysics – Astronomy
Scientific paper
Apr 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009iaus..259..437c&link_type=abstract
Cosmic Magnetic Fields: From Planets, to Stars and Galaxies, Proceedings of the International Astronomical Union, IAU Symposium,
Astronomy and Astrophysics
Astronomy
3
Stars: Activity, Stars: Magnetic Fields, Stars: Spots, Radiative Transfer, Methods: Data Analysis
Scientific paper
We present Zeeman-Doppler images of the active K2 star II Peg for the years 2004 and 2007. The surface magnetic field was reconstructed with our new ZDI code iMap which provides a full polarized radiative transfer driven inversion to simultaneously reconstruct the surface temperature and magnetic vector field distribution. II Peg shows a remarkable large scale magnetic field structure for both years. The magnetic field is predominantly located at high latitudes and is arranged in active longitudes. A dramatic evolution in the magnetic field structure is visible for the two years, where a dominant and largely unipolar field in 2004 has changed into two distinct and large scale bipolar structures in 2007.
Carroll Thorsten A.
Ilyin I. I.
Kopf Markus
Strassmeier Klaus G.
Tuominen Ilkka
No associations
LandOfFree
Zeeman-Doppler imaging of II Peg does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Zeeman-Doppler imaging of II Peg, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Zeeman-Doppler imaging of II Peg will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1522480