Two Suns in the sky: the TEST telescope on the quest for planets around binary stars

天空中的两个太阳：寻找双星周围行星的测试望远镜

• 批准号: 262374930
• 负责人: Professor Dr. Artie P. Hatzes
• 金额: --
• 依托单位: Thüringer Landessternwarte Tautenburg (TLS) - Karl-Schwarzschild-Observatorium
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2014
• 资助国家: 德国
• 起止时间: 2013-12-31 至 2019-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/262374930?language=en
• 关键词: Two; Suns; sky; TEST; telescope

The Tautenburg Exoplanet Search Telescope is a robotic 30cm Schmidt telescope to find extra-solar planets. It monitors celestial fields selected beforehand to detect extrasolar planets. Being a robotic telescope, its participation in the Dwarf network is essential. This network consists of 20 mostly European telescopes and looks for planets around a particular class of binary stars, the so-called eclipsing binaries.These binaries revolve around each other in a way so that one star transits in front of the other and thus shades its light. This results in a substantial and strictly periodical dimming of the total brightness of the system, the so-called eclipses. Therefore, one can conclude on the binary nature of the system by monitoring the brightness, even though the two components cannot be resolved due to the large distance.If a planet is in an orbit around this binary, both the planet and the binary move around a common centre of mass, strictly speaking. Therefore, the distance of the binary varies periodically and thus the light travel time of the binary, too. This results in a measurable variation of the exact eclipse times and can be measured more precisely the brighter the binary and the larger the telescope.The TEST telescope will be optimised for the observation of such eclipsing binaries. The observing schedule for tens of binaries will be organised automatically in a way so that many eclipses of many stars are observed efficiently.In order to increase the success of the Dwarf network, the best binary targets need to be identified and monitored. Being one of the smallest telescopes in the Dwarf network, the TEST is perfectly suited to find the most promising targets among hundreds of candidates while the larger telescope are used for the ambitious monitoring of the eclipse times of the best candidates. Moreover, the TEST will contribute to the Dwarf campaign by measuring eclipse times for selected bright objects. Finally, the project will provide resources to analyse the large amount of eclipse time measurements collected by the Dwarf project.The project ensures the operation and development of an advanced telescope over the next years and at the same time contributes to ambitious and seminal science. The development of automated observations will advance the search for planets around binary stars.

陶腾堡系外行星搜索望远镜是一个30厘米的机器人施密特望远镜，用于寻找太阳系外行星。它监测预先选定的天体场，以探测太阳系外行星。作为一个机器人望远镜，它参与矮网络是必不可少的。这个网络由20个主要是欧洲的望远镜组成，寻找围绕一种特殊类型的双星，即所谓的食双星的行星。这些双星以一种方式相互旋转，使得一颗星星在另一颗恒星前面经过，从而遮蔽了它的光线。这导致了系统总亮度的实质性和严格的周期性变暗，即所谓的日食。因此，尽管由于距离很远，无法分辨这两个分量，但人们可以通过监测亮度来得出系统的二元性质。如果一颗行星处于围绕该二元系的轨道上，那么行星和二元系都围绕一个共同的轨道运行。严格来说，质量中心。因此，双星的距离周期性地变化，因此双星的光旅行时间也是如此。这就导致了食分时刻的变化，并且双星越亮，望远镜越大，测量的精度就越高。TEST望远镜将被优化，以观测这种食分双星。几十个双星的观测计划将自动组织起来，以便有效地观测到许多恒星的许多日食。为了提高矮星系网络的成功率，需要识别和监测最好的双星目标。作为Dwarf网络中最小的望远镜之一，TEST非常适合在数百个候选者中找到最有希望的目标，而较大的望远镜则用于雄心勃勃地监测最佳候选者的日食时间。此外，测试将通过测量选定的明亮物体的日食时间来促进矮星活动。最后，该项目将提供资源，用于分析“矮”项目收集的大量日食时间测量数据，确保今后几年先进望远镜的运行和开发，同时为雄心勃勃的开创性科学作出贡献。自动化观测的发展将推进对双星周围行星的搜索。

项目成果

Affordable échelle spectroscopy with a 60 cm telescope

经济实惠的埃歇尔光谱仪，配有 60 厘米望远镜

• DOI: 10.1002/asna.201512202
• 发表时间: 2015
• 期刊: Astronomische Nachrichten
• 影响因子: 0.9
• 作者: Pribulla;Hambálek;Kollár;Komžík;Kundra;Nedoroščík;Sekeráš;Vaňko
• 通讯作者: Vaňko

Search for transiting exoplanets and variable stars in the open cluster NGC 7243

在疏散星团 NGC 7243 中寻找凌日系外行星和变星

• DOI: 10.1002/asna.201512310
• 发表时间: 2016
• 期刊: Astronomische Nachrichten
• 影响因子: 0.9
• 作者: Pribulla;Hambálek;Errmann;Butterley;Dhillon;Dincel;Gilbert;Ginski;Kellerer;Kundra;Littlefair;Mugrauer;Nedoroščík;Neuhäuser
• 通讯作者: Neuhäuser