| タイトル | VLBI observations of the gravitational lens system 0957+561 - Structure and relative magnification of the A and B images |
| 著者（英） | Cohen, N. L.; Bonometti, R. J.; Rogers, A. E. E.; Shapiro, I. I.; Gorenstein, M. V. |
| 著者所属（英） | Cornell Univ.|Northeast Radio Observatory Corp.|Massachusetts Inst. of Tech.|Harvard-Smithsonian Center for Astrophysics |
| 発行日 | 1988-11-01 |
| 言語 | eng |
| 内容記述 | Gravitationally lensed images of the quasar 0957+561 have been observed at 13 cm wavelength using a six-antenna VLBI array with nearly milliarcsecond resolution. Models of the observed surface brightness distribution of each of the A and B images provide support of the gravitational lens hypothesis. A value of the magnitude of the relative image magnification A/B of 0.64 + or - 0.03 is obtained. |
| NASA分類 | ASTRONOMY |
| レポートNO | 89A15431 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/366958 |
