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arXiv 1108.2199astro-ph.SRastro-ph.EP
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STRESS - STEREO系外行星和恒星勘测- I:介绍和数据管道

STRESS - STEREO TRansiting Exoplanet and Stellar Survey - I : Introduction and Data Pipeline

Vinothini Sangaralingam, Ian R Stevens

摘要:

日地关系观测站- \emph{STEREO}是一个由两个位于日心地球轨道上的相同航天器组成的系统。我们使用两个日光层成像仪(HI),这是一个广角成像仪与多挡板系统进行高精度恒星测光,以搜索系外行星凌日和了解恒星变量。该仪器的大节奏(HI-1为40分钟,HI-2为2小时)、高精度、宽星等范围(\emph{R} 4至12等)和广阔的天空覆盖范围(仅HI-1A就占近20%,所有仪器加在一起占黄道带区域天空的60%)标志着这一点,而其他现有项目在很大程度上缺乏这一空间。在本文中,我们描述了半自动流水线设计的减少这些数据,一些有趣的特性,所获得的数据,数据分析方法,以及一些早期的结果。

英文摘要:

The Solar TErrestrial RElations Observatory - \emph{STEREO}, is a system of two identical spacecraft in Heliocentric Earth orbit. We use the two Heliospheric Imagers (HI), which are wide angle imagers with multi-baffle systems to do high precision stellar photometry in order to search for exoplanetary transits and understand stellar variables. The large cadence (40 min for HI-1 and 2 hrs for HI-2), high precision, wide magnitude range (\emph{R} mag - 4 to 12) and broad sky coverage (nearly 20 percent just for HI-1A and 60 per cent of the sky in the zodiacal region for all the instruments combined) of this instrument marks this in a space left largely devoid by other current projects. In this paper, we describe the semi-automated pipeline devised for the reduction of this data, some of the interesting characteristics of the data obtained, data analysis methods used along with some early results.

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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