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Observational evidence of variations in the accretion rate in the HZ Hercules/Hercules X-1 systemстатья
- Авторы: Bochkarev N.G., Lyuty V.M., Sheffer E.K., Voloshina I.B.
- Журнал: Pis'ma v Astronomicheskii Zhurnal
- Том: 14
- Год издания: 1988
- Первая страница: 992
- Последняя страница: 1005
- Аннотация: The light variations of HZ Her in filter U and colour U-B during the optical eclipse reach 0$^m$.3 on months and years timescales. Long-time variations of the U-B colours correlate with X-ray ”turn on” moments, i.e., with the current value of the 35 day cycle period and with P$_1.24$ period of the X-ray pulsar. The variations may be related to cold (6000 - 7000K) gas collected near the side of the optical component opposite to the neutron star when gas is moving away from the corona around the accretion disk outer ring.
- Добавил в систему: Бочкарев Николай Геннадиевич