| タイトル | High-angular resolution observations of stellar binary systems |
| 著者（英） | Preston, R. A.; Mutel, R. L.; Phillips, R. B.; Lestrade, J.-F. |
| 著者所属（英） | Iowa Univ.|Northeast Radio Observatory Corp.|Bureau des Longitudes|Jet Propulsion Lab., California Inst. of Tech. |
| 発行日 | 1985-01-01 |
| 言語 | eng |
| 内容記述 | A long-term program designed to investigate the spatial structure of centimetric radio emission from close binary systems using multistation VLBI array is discussed. Eleven binaries, including eight RS CVn systems, Algol, LSI 61 deg 303, and Cyg X-1, have been detected. The measured brightness temperatures vary from T(B) about 10 exp 8.5 K during periods of low activity to T(B) about 10 exp 10.5 K during flares. Extensive observation of a few sources has shown that the spatial structure is 'core-halo' with linear dimensions of about a stellar radius and the binary system, respectively. The observations are consistent with gyrosynchrotron emission of mildly relativistic electrons in magnetic fields of about 10 exp 1.5 + or - 0.5 gauss. The core sources appear to be optically thick, while the halo component is optically thin. |
| NASA分類 | ASTROPHYSICS |
| レポートNO | 86A38033 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/384555 |
|
