天蝎座双星的一个新的独特现象

Q4 Physics and Astronomy

Astronomical and Astrophysical Transactions Pub Date : 2007-09-05 DOI:10.1080/10556790701300546

M. I. Kumsiashvili, R. Natsvlishvili, N. Kochiashvili

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引用次数: 1

摘要

本文介绍了格鲁吉亚Abastumani天体物理天文台1972-1990年和乌兹别克斯坦Maidanak天文台1979-1991年获得的RY Scuti旧电光度数据的再分析结果。不稳定的过程在RY Sct从一个时期到另一个时期，从一个月到另一个月，从一年到另一年被揭示。这种变化的幅度从百分之一到十分之一不等。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。对于在明亮的蓝色变星，特别是S型恒星中看到的一些类似的变化，这是非常有趣的。这也可能与RY Sct喷射星云的原因密切相关。

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A new unique phenomenon for the RY Scuti binary star

We present the results of reanalysis of old electrophotometric data on RY Scuti obtained at the Abastumani Astrophysical Observatory, Georgia, during 1972–1990 and at the Maidanak Observatory, Uzbekistan, during 1979–1991. Unstable processes in RY Sct from period to period, from month to month and from year to year are revealed. The magnitude of this variation is from hundredths to tenths. Furthermore, periodic changes in the system's light are displayed near the first maximum on timescales of a few years. This is of great interest with regard to some similar variations seen in luminous blue variable stars and, in particular, in S Dor-type stars. This also could be closely related to the question of why RY Sct ejected its nebula.

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来源期刊

Astronomical and Astrophysical Transactions Physics and Astronomy-Instrumentation

CiteScore

0.40

自引率

0.00%

发文量

期刊介绍： Astronomical and Astrophysical Transactions (AApTr) journal is being published jointly by the Euro-Asian Astronomical Society and Cambridge Scientific Publishers, The journal provides a forum for the rapid publication of material from all modern and classical fields of astronomy and astrophysics, as well as material concerned with astronomical instrumentation and related fundamental sciences. It includes both theoretical and experimental original research papers, short communications, review papers and conference reports.