| タイトル | The 3C 279 Campaign of Winter 1999: A Gamma-Optical Correlation? |
| 著者（英） | Raiteri, C. M.; Sobrito, M.; Hartman, R. C.; Tosti, G.; Villata, M.; Nikolashvili, M.; Ostorero, L.; DeFrancesco, G.; Takalo, L.; Kurtanidze, O. |
| 著者所属（英） | NASA Goddard Space Flight Center |
| 発行日 | 2000-01-01 |
| 言語 | eng |
| 内容記述 | Preliminary results are presented from the gamma-optical campaign of January-February 1999 on 3C 279. During this period we obtained good optical sampling of the source, the best ever for a gamma-bright OVV quasar. Its large and fast variations have been compared with the gamma-ray fluxes obtained simultaneously by Energy Gamma Ray Experiment Telescope (EGRET), on Compton Gamma Ray Observatory (CGRO). Despite rather poor counting statistics in the gamma-ray data, a fair correlation is found, with the gamma variations following those in the optical by 3-4 days. This is the first time such a significant day-scale correlation has been observed between the optical and gamma emissions from a OVV quasar. Its implications are currently under study. |
| NASA分類 | Astrophysics |
| 権利 | No Copyright |
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