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New data on the P_0-oscillation of the nucleus of the Seyfert galaxy NGC 4151статья
- Авторы: Kotov V.A., Lyutyj V.M., Merkulova N.I., Metik L.P., Metlov V.G., Khanejchuk V.I.
- Журнал: Kinematika i Fizika Nebesnykh Tel
- Том: 14
- Год издания: 1998
- Первая страница: 67
- Последняя страница: 76
- Аннотация: The presence of the periodicity P0 = 160.0101±0.0001 min in the brightness variations of active galactic nuclei is often subjected to criticism by some astrophysicists. With the aim to check the P0-effect, an extensive series of photometric observations of the Seyfert galaxy NGC 4151 was obtained in 1987 - 1994 using two Crimean reflectors. These new data confirmed the presence of the P0-periodicity with the stable (over 26 yr) initial phase and the mean harmonic amplitude ≍7 mmag (in the V filter). This conclusion is supported by analysis of the X-ray data (1975 - 1991) obtained by satellites Ariel-5, EXOSAT and Ginga. Since just the same period has been detected earlier in the power spectrum of global oscillations of the Sun, the conclusion is drawn about its cosmological origin.
- Добавил в систему: Метлов Владимир Георгиевич