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arXiv 0906.4800astro-ph.SR
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密近双星Ry Scuti的非稳定过程研究

Investigation of Non-Stable Processes in Close Binary Ry Scuti

M. I. Kumsiashvili, R. Sh. Natsvllshvili, K. B. Chargeishvili

摘要:

本文对1972-1990年期间在格鲁吉亚Abastumani天体物理观测站和1979-1991年期间在乌兹别克斯坦Maidanak观测站获得的早期密近双星系统RY Scuti的旧电光度数据进行了再分析。揭示了RY尺度的周期性、月性和年性的非稳定过程。这种变化从百分之一到十分之一等。此外,在几年的时间尺度上,系统光的周期性变化显示在第一个最大值附近。这对于在亮蓝变星(LBV)中看到的一些类似变化非常感兴趣。这也可能与RY Sct为什么会喷出星云的问题密切相关。

英文摘要:

We present results of reanalysis of old electrophotometric data of early type close binary system RY Scuti obtained at the Abastumani Astrophysical Observatory, Georgia, during 1972-1990 years and at the Maidanak Observatory, Uzbekistan, during 1979-1991 years. It is revealed non-stable processes in RY Sct from period to period, from month to month and from year to year. This variation consists from the hundredths up to the tenths of a magnitude. Furthermore, periodical changes in the system's light are displayed near the first maximum on timescales of a few years. That is of great interest with regard to some similar variations seen in luminous blue variable (LBV) stars. This also could be closely related to the question of why RY Sct ejected its nebula.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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