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arXiv 2209.01142astro-ph.SRastro-ph.EP
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具有光走时效应的CoRoT-TESS食双星

CoRoT-TESS eclipsing binaries with light-travel-time effect

T. Hajdu, B. Matécsa, J. M. Sallai, A. Bódi

摘要:

即使在太空望远镜的世纪,由于相对较短的观测序列和这些任务的短寿命,用天基测光识别长周期食双星仍然是一个挑战。凌日系外行星勘测卫星(TESS)空间望远镜是补充以前天基观测的适当工具。本文报道了由CoRoT和TESS空间望远镜观测到的食双星食时变化(ETV)分析的第一批结果。在1428个EB候选者中,我们发现了4个新的潜在的三重候选者,对它们的ETV进行了分析,并通过著名的光旅行时间效应(LTTE)进行了拟合。其中一个在其折叠光曲线中显示出显著的相移,这需要额外的照顾。在本文中,我们还提出了一些其他系统显示显着的ETV信号,可以解释的质量转移或拱点运动。

英文摘要:

Identifying long-period eclipsing binaries with space-based photometry is still a challenge even in the century of space telescopes due to the relatively short observation sequences and short lifetime of these missions. The Transiting Exoplanet Survey Satellite (TESS) space telescope is an appropriate tool to supplement previous space-based observations. In this paper we report the first results of the eclipse timing variation (ETV) analyses of eclipsing binaries (EBs) measured by CoRoT and TESS space telescopes. Among the 1428 EB candidates we found 4 new potential triple candidates, for which ETV was analysed and fitted by the well-known light-travel-time effect (LTTE). One of them shows significant phase shift in its folded light curve which required extra care. In this paper we also present some other systems showing significant ETV signals that could be explained by mass transfer or apsidal motion.

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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