Academic
Publications
PLASMA AND MAGNETIC FIELD PARAMETERS AT BOW SHOCKS OF SHORT PERIOD EXTRASOLAR GAS GIANTS

PLASMA AND MAGNETIC FIELD PARAMETERS AT BOW SHOCKS OF SHORT PERIOD EXTRASOLAR GAS GIANTS,T. Penz,H. Lammer,N. V. Erkaev,J.-M. Grießmeier,D. F. Vogl,H.

PLASMA AND MAGNETIC FIELD PARAMETERS AT BOW SHOCKS OF SHORT PERIOD EXTRASOLAR GAS GIANTS  
BibTex | RIS | RefWorks Download
During the last years, many short period extrasolar gas giants were discovered. Since their orbit distance from their host star is very close, they are embedded in a dense stellar wind. Additionally, recent astrophysical observations indicate that the stellar wind of young stars is much denser and faster than in the case of older stars like the present Sun. Therefore, we model both cases of the stellar evolution, namely an early stage of 0.7 Gyr and a present Sun scenario of 4.6 Gyr, respectively. We calculate the Alfven Mach number as well as a magnetosonic Mach number to analyse the different interaction regimes, which appear for different stellar wind parameters. We compare the results achieved for close-in exoplanets with the exoplanet HD 28185 b, which has an orbital distance of about 1 AU. Additionally, we discuss the influence of high eccentricities of exoplanets like HD 108147 b and HD 162020 b on the interaction regime.
Published in 2004.
Cumulative Annual
View Publication
The following links allow you to view full publications. These links are maintained by other sources not affiliated with Microsoft Academic Search.