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arXiv 2604.05487astro-ph.SR
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利用LAMOST和TESS搜索接触双星

Searching for Contact Binaries with LAMOST and TESS

Xinjiang Astronomical Observatory, Chinese Academy of Sciences(中国科学院新疆天文台);School of Astronomy and Space Science, University of Chinese Academy of Sciences(中国科学院大学天文学与空间科学学院);Department of Astronomy, Xiamen University(厦门大学天文学系);College of Physics and Information Engineering, Quanzhou Normal University(泉州师范学院物理与信息工程学院)

Ting Wu, Jin-Zhong Liu, Senyu Qi, Zhi-Xiang Zhang, Hubiao Niu, Ali Esamdin, Wei-Min Gu

AI总结:

本文利用TESS高精度光变曲线和LAMOST径向速度变化数据,发现1281个接触双星候选体,其中266个为新发现,为研究双星物理尺度、光度校准和分布提供新约束。

摘要:

接触双星(CBs)是研究复杂恒星相互作用的基础实验室,包括质量转移、潮汐效应和角动量损失。本文通过TESS的高精度光变曲线和LAMOST的径向速度变化数据搜索CBs,得到1281个候选体,其中266个为新发现。该样本结合高精度光度测量和中分辨率光谱可能为CBs的物理尺度、光度校准和分布提供新约束,为理解其在恒星群体中的演化作用提供有价值见解。

英文摘要:

Contact binaries (CBs) serve as fundamental laboratories for studying complex stellar interactions, including mass transfer, tidal effects, and angular momentum loss. In this work, we search for CB with high-precision light curves from the Transiting Exoplanet Survey Satellite (TESS) and large radial-velocity variation from the Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST). We derive a sample of 1,281 CB candidates, among which 266 are newly reported. Our sample with both high-precision photometry and medium-resolution spectra may provide new constraints on the physical scales, luminosity calibration, and population distribution of CBs, offering valuable insights into their evolutionary role within the stellar population.

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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