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arXiv 2303.08616astro-ph.SR
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矮新星RX闪烁的BV测光观测

BV photometric observations of the flickering of the dwarf nova RX And

R. K. Zamanov, L. Dankova, M. Moyseev, M. Minev, K. A. Stoyanov, V. D. Ivanov

摘要:

本文报道了矮新星RX和的两个波段(B和V)的夜内光变的测光结果。这些观测是在2022年11月至12月的三个晚上在罗真国家天文台的50/70厘米施密特望远镜上进行的。观测结果表明,当恒星处于暗态(m_V=13.5)时,B波段的闪烁幅度约为0.5mag,而当恒星处于亮态(m_V=10.9)时,闪烁幅度要小得多(小于0.1mag)。高态的质量吸积率估计为$1.2 \times 10^{-9}$ M $_\odot$ yr $^{-1}$ .结合我们的数据和GAIA距离,我们发现在RX~和光谱类型K6 V-K7 V的质量施主。这些数据可应作者的要求提供。

英文摘要:

We report photometry of the intranight variability of the dwarf nova RX And in two bands (B and V). The observations are carried out during three nights in November-December 2022 at the 50/70~cm Schmidt telescope of the Rozhen National Astronomical Observatory. The observations indicate that the amplitude of the flickering is about 0.5 mag in B band when the star is in faint state (m_V=13.5), but it is considerably lower (less than 0.1 mag) when the star is bright (m_V=10.9). The mass accretion rate in high state is estimated to be $1.2 \times 10^{-9}$ M$_\odot$ yr$^{-1}$. Combining our data and GAIA distances we find for the mass donor in RX~And spectral type K6V-K7V. The data are available upon request from the authors.

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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