Photospheric and chromospheric activity in four young solar-type stars

Details Photospheric and chromospheric activity in four young solar-type stars Photospheric and chromospheric activity in four young solar-type stars

2006-09-19

arxiv.org/abs/astro-ph/0609525v1

Astrophys.J.656:474-482,2007

Astronomy and Astrophysics

Astrophysics

12 pages, 3 tables, 9 figures. Submitted to ApJ

Scientific paper

10.1086/510279

We present a photometric and spectroscopic study of four G-K dwarfs, namely HD 166, epsilon Eri, chi1 Ori and kappa1 Cet. In three cases, we find a clear spatial association between photospheric and chromospheric active regions. For chi1 Ori we do not find appreciable variations of photospheric temperature, and chromospheric Halpha emission. We applied a spot/plage model to the observed rotational modulation of temperature and flux to derive spot/plage parameters and to reconstruct a rough three-dimensional map of the outer atmosphere of kappa1 Cet, HD 166 and epsilon Eri.

Affiliated with

Also associated with

No associations

Rating

Photospheric and chromospheric activity in four young solar-type stars 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 Photospheric and chromospheric activity in four young solar-type stars, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Photospheric and chromospheric activity in four young solar-type stars will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-465149