Shallow transit follow‐up from N ext‐Generation Transit Survey : Simultaneous observations of HD 106315 with 11 identical telescopes

Shallow transit follow‐up from N ext‐Generation Transit Survey : Simultaneous observations of HD 106315 with 11 identical telescopes
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下一代凌日巡天的浅层凌日追踪:用 11 个相同的望远镜同时观测 HD 106315

DOI:
10.1002/asna.202013768
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发表时间:
2020
期刊:
arXiv: Earth and Planetary Astrophysics
影响因子:
--
通讯作者:
P. Wheatley
P. Wheatley
中科院分区:
--
文献类型:
--
作者:
Alexis M. S. Smith;P. Eigmuller;R. Gurumoorthy;S. Csizmadia;D. Bayliss;M. Burleigh;J. Cabrera;S. Casewell;A. Erikson;M. Goad;Andrew Grange;J. Jenkins;D. Pollacco;H. Rauer;L. Raynard;S. Udry;R. West;P. Wheatley

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下一代凌日调查(NGTS)是一项针对凌日系外行星的光度调查,由12个相同的0.2米望远镜组成。我们报道了一种测量HD106315c凌日的新的观测模式,在这种模式下,多个NGTS望远镜观测到同一目标,目的是提高信噪比。结合这些数据,可以对深度不到0.1%的凌日进行强有力的探测,可以与更大的望远镜的性能相媲美。我们使用这种观测模式展示了NGTS为K2和TESS发现的后续工作做出贡献的能力。特别是,NGTS非常适合于测量明亮目标的浅凌日。这对于改善相对长周期行星的轨道星历尤为重要,因为在这些行星上,从太空只能观测到少量凌日。
The Next Generation Transit Survey (NGTS) is a photometric survey for transiting exoplanets, consisting of twelve identical 0.2-m telescopes. We report a measurement of the transit of HD106315c using a novel observing mode in which multiple NGTS telescopes observed the same target with the aim of increasing the signal-to-noise. Combining the data allows the robust detection of the transit, which has a depth less than 0.1 per cent, rivalling the performance of much larger telescopes. We demonstrate the capability of NGTS to contribute to the follow-up of K2 and TESS discoveries using this observing mode. In particular, NGTS is well-suited to the measurement of shallow transits of bright targets. This is particularly important to improve orbital ephemerides of relatively long-period planets, where only a small number of transits are observed from space.
DOI: 10.1093/mnras/stz2496
发表时间: 2019-06
影响因子: 4.8
作者:
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发表时间: 2019-11
影响因子: 4.8
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来自下一代凌日巡天的完全对流区内的低质量食双星
DOI: 10.1093/mnras/sty2183
发表时间: 2018
影响因子: 4.8
作者:
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带有 HARPS 的凌日行星系统 HD 106315 的精确质量
DOI: 10.1051/0004-6361/201731276
发表时间: 2017
影响因子: 6.5
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