RS CVn二进制FF UMa的首次多普勒成像

IF 0.4 4区物理与天体物理 Q4 ASTRONOMY & ASTROPHYSICS

Contributions of the Astronomical Observatory Skalnate Pleso Pub Date : 2020-03-01 DOI:10.31577/caosp.2020.50.2.594

H. V. Şenavcı, E. Bahar, I. Özavcı, T. Kılıçoğlu

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引用次数: 0

摘要

我们提出了第一个多普勒成像(DI)研究的显色球活性RS CVn双星大熊座FF。利用安卡拉大学Kreiken天文台的0.4 m Kreiken望远镜附带的阶梯式光谱仪获得了新的中分辨率(R ~ 13500)时间序列光谱数据。我们利用光谱减法技术对Hα线进行了分析，揭示了该体系色球活性的相行为。DI和光谱减法分析的结果表明，这两个组分都具有光球和色球活性。时间序列光谱数据也使我们能够获得系统最新的径向速度曲线，并重新确定物理参数。

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First Doppler imaging of the RS CVn binary FF UMa

We present the first Doppler Imaging (DI) study of the chromospherically active RS CVn binary FF Ursae Majoris. New mid-resolution (R ∼ 13500) time series spectral data were acquired using the echelle spectrograph attached to the 0.4-m Kreiken Telescope at the Ankara University Kreiken Observatory. We applied a spectral subtraction technique to the Hα line to reveal the phase behavior of the chromospheric activity of the system. The results derived from DI and spectral subtraction analyses show that both components exhibit photospheric and chromospheric activity. The time series spectral data also enable us to obtain the most recent radial velocity curve of the system and re-determine the physical parameters.

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来源期刊

Contributions of the Astronomical Observatory Skalnate Pleso 地学天文-天文与天体物理

CiteScore

1.10

自引率

20.00%

发文量

审稿时长

>12 weeks

期刊介绍： Contributions of the Astronomical Observatory Skalnate Pleso" (CAOSP) is published by the Astronomical Institute of the Slovak Academy of Sciences (SAS). The journal publishes new results of astronomical and astrophysical research, preferentially covering the fields of Interplanetary Matter, Stellar Astrophysics and Solar Physics. We publish regular papers, expert comments and review contributions.