Radiation transfer of gyrosynchrotron emission in stellar environments

✍ Scribed by Michelle C. Storey

• Publisher: Springer
• Year: 1996
• Tongue: English
• Weight: 658 KB
• Volume: 168
• Category: Article
• ISSN: 0038-0938
• DOI: 10.1007/bf00148067

✦ Synopsis

Non-thermal radio emission has been detected from several kinds of active stars. Polarization and intensity measurements of the quiescent (i.e. non-flaring) emission indicate gyrosynchmtron crnission. A three-dimensional magnetic lield model for the stellar field is presented anti the gyrosynchrolron intensity and polarization emerging from such a model is calculalcd and compared with obserwations. Model spectra agree well with observations. Model polarization restdts indicate that the emission region is morc complex than the simple model and may indicate the prcscncc ~yf multipolc components in the field, small loops of llux near the stellar surface and significanl energy loss in the radiating electron distribution over time.