High precision ground-based CCD photometry from the Next Generation Transit Survey

High precision ground-based CCD photometry from the Next Generation Transit Survey
复制标题

下一代交通测量的高精度地面 CCD 光度测量

DOI:
10.1117/12.2628966
复制
发表时间:
2022
期刊:
--
影响因子:
--
通讯作者:
Bayliss D
Bayliss D
中科院分区:
--
文献类型:
--
作者:
Bayliss D

文献摘要

参考文献

相似文献

下一代凌日巡天(NGTS)已经运行了六年,发现并表征了明亮恒星周围的凌日系外行星。我们概述了NGTS项目,包括用于执行高精度时间序列测光的Andor CCD相机。我们量化的测光精度超过20,000明亮的星星观测的样本。我们发现单NGTS望远镜观测,我们实现了30分钟的光度精度为400 ppm的低空气质量。这与使用四分量噪声模型预测的光度噪声非常一致。我们发现亮星(G < 12)的光度噪声主要是大气闪烁。我们还介绍了NGTS多望远镜观测模式的细节,即12台望远镜可以同时用于一个单一的目标星星,以实现30分钟的光度精度为100 ppm。最后,我们描述了一个新一代的科学CMOS相机,我们将在NGTS设施的天空测试,以确定它是否可以与国家的最先进的CCD相机用于高精度明亮的星星测光。
The Next Generation Transit Survey (NGTS) has now been operating for six years, discovering and characterizing transiting exoplanets around bright stars. We outline the NGTS project, including the Andor CCD cameras used to perform high-precision time-series photometry. We quantify the photometric precision for a sample of over 20,000 bright star observations. We find for single NGTS telescope observations we achieve a 30-minute photometric precision of 400 ppm at low airmass. This is in good agreement with the photometric noise predicted using a four-component noise model. We find that the photometric noise for bright stars (G < 12) is dominated by atmospheric scintillation. We also present details of the NGTS multi-telescope observing mode, whereby 12 telescopes can be used simultaneously on a single target star to achieve a 30-minute photometric precision of 100 ppm. Finally, we describe a new generation scientific CMOS camera that we will be testing on-sky at the NGTS facility to determine if it can compete with state-of-the-art CCD cameras used for high precision bright star photometry.
使用帕拉纳尔天文台 20 厘米 NGTS 望远镜进行闪烁限制光度测量
DOI: 10.1093/mnras/stab3399
发表时间: 2021
影响因子: 3.5
作者:
S. O'Brien;D. Bayliss;J. Osborn;E. Bryant;J. McCormac;P. Wheatley;J. Acton;D. Alves;D. Anderson;M. Burleigh;S. Casewell;S. Gill;M. Goad;B. Henderson;J. Jackman;M. Lendl;R. Tilbrook;S. Udry;J. Vines;Robert West
通讯作者: Robert West
DONUTS:具有亚像素精度的科学框架自动引导算法,能够引导散焦恒星
DOI: 10.1086/670940
发表时间: 2013
影响因子: 3.5
作者:
J. McCormac;D. Pollacco;I. Skillen;F. Faedi;I. Todd;C. Watson
通讯作者: C. Watson
木星下低密度系外行星质量短周期观测器
DOI: 10.1088/2041-8205/727/2/l44
发表时间: 2010
期刊: The Astrophysical Journal Letters
影响因子: --
作者:
Gy. M. Szabó;Gy. M. Szabó;László L. Kiss;László L. Kiss
通讯作者: László L. Kiss
DOI: --
发表时间: 1952
期刊:
影响因子: --
作者:
O. Struve
通讯作者: O. Struve
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
发表时间: 2020
期刊: arXiv: Earth and Planetary Astrophysics
影响因子: --
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
通讯作者: P. Wheatley