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arXiv 1001.3472astro-ph.SR
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盾牌座$δ$恒星HD 40372的测光

Photometry of the $δ$ Scuti star HD 40372

Sukanta Deb, S. K. Tiwari, Harinder P. Singh, T. R. Seshadri, U. S. Chaubey

摘要:

本文利用ARIES三通道快速光度计在104厘米Sampurnanand望远镜上以高速测光模式对$δ$ Scuti星HD 40372进行了B波段测光。该恒星在2008年12月13日被观测了$\sim$ 5小时。在高质量测光资料的基础上,利用各种周期图分析技术进行了周期分析。周期的最佳估计是$\sim 0.067$天。利用该周期和文献中可用的$uvbyβ$测光确定的其他恒星参数,我们计算了该恒星的$Q$值。将该$Q$值与模型计算值进行比较,表明该恒星以$_{3}$模式脉动,并伴随有$l = 2$。

英文摘要:

We present B band photometry of the $δ$ Scuti star HD 40372 using the ARIES three channel fast photometer attached to the 104-cm Sampurnanand telescope in high-speed photometric mode. The star was observed for $\sim$ 5 hours on December 13, 2008. Based on the high quality photometric data, we have done period analysis by various periodogram analysis techniques. The best estimate of the period is found to be $\sim 0.067$ days. With this period and the other stellar parameters determined from $uvbyβ$ photometry available in the literature, we have calculated the $Q$ value for the star. Comparison of this $Q$ value with that determined from the model calculations shows that the star is pulsating in p$_{3}$ mode with $l = 2$.

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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