Astronomy and Astrophysics – Astronomy
Scientific paper
Jul 1998
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998mnras.297..760s&link_type=abstract
Monthly Notices of the Royal Astronomical Society, Volume 297, Issue 3, pp. 760-768.
Astronomy and Astrophysics
Astronomy
7
Binaries: Close, Stars: Evolution, Stars: Individual: Betaper, Stars: Individual: Usge, Stars: Magnetic Fields, X-Rays: Stars
Scientific paper
We examine the possibility of probing dynamo action in mass-losing stars, components of Algol-type binaries. Our analysis is based on the calculation of non-conservative evolution of these systems. We model the systems USge and betaPer where the more massive companion fills its Roche lobe at the main sequence (case AB) and where it has a small helium core (early case B) respectively. We show that to maintain evolution of these systems at the late stages which are presumably driven by stellar `magnetic braking', an efficient mechanism for producing large-scale surface magnetic fields in the donor star is needed. We discuss the relevance of dynamo operation in the donor star to the accelerated mass transfer during the late stages of evolution of Algol-type binaries. We suggest that the observed X-ray activity in Algol-type systems may be a good indicator of their evolutionary status and internal structure of the mass-losing stellar components.
Muslimov Alexander G.
Sarna Marek J.
Yerli Sinan K.
No associations
LandOfFree
Magnetic activity and evolution of Algol-type stars - II 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 Magnetic activity and evolution of Algol-type stars - II, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnetic activity and evolution of Algol-type stars - II will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1270643