| タイトル | Day-Scale Variability of 3C 279 and Searches for Correlations in Gamma-Ray, X-Ray and Optical Bands |
| 本文（外部サイト） | http://hdl.handle.net/2060/20010072238 |
| 著者（英） | Villata, M.; Carini, M. T.; Ferrera, E. C.; Bertsch, D. L.; White, Nicholas E.; Collmar, W.; Boettcher, M.; Hartman, R. C.; DeFrancesco, G.; Balonek, T. J.; Bock, H. |
| 著者所属（英） | NASA Goddard Space Flight Center |
| 発行日 | 2001-01-01 |
| 言語 | eng |
| 内容記述 | Light curves of 3C 279 are presented in optical (R-band), X-rays (RXTE/PCA), and gamma rays (CGRO/EGRET) for 1999 Jan-Feb and 2000 Jan-Mar. During both of those epochs the gamma-ray levels were high, and all three observed bands demonstrated substantial variation, on time scales as short as one day. Correlation analyses provided no consistent pattern, although a rather significant optical/gamma-ray correlation was seen in 1999, with a gamma-ray lag of approximately 2.5 days, and there are other suggestions of correlations in the light curves. For comparison, correlation analysis is also presented for the gamma-ray and X-ray light curves during the large gamma-ray flare in 1996 Feb and the two gamma-bright weeks leading up to it; the correlation at that time was strong, with a gamma-ray/X-ray offset of no more than one day. |
| NASA分類 | Astronomy |
| 権利 | No Copyright |
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