PLATO’s signal and noise budget

IF 2.7 3区物理与天体物理 Q2 ASTRONOMY & ASTROPHYSICS Experimental Astronomy Pub Date : 2024-06-24 DOI:10.1007/s10686-024-09948-6

Anko Börner, Carsten Paproth, Juan Cabrera, Martin Pertenais, Heike Rauer, J. Miguel Mas-Hesse, Isabella Pagano, Jose Lorenzo Alvarez, Anders Erikson, Denis Grießbach, Yves Levillain, Demetrio Magrin, Valery Mogulsky, Sami-Matias Niemi, Thibaut Prod’homme, Sara Regibo, Joris De Ridder, Steve Rockstein, Reza Samadi, Dimitri Serrano-Velarde, Alan Smith, Peter Verhoeve, Dave Walton

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Abstract

ESA’s PLATO mission aims the detection and characterization of terrestrial planets around solar-type stars as well as the study of host star properties. The noise-to-signal ratio (NSR) is the main performance parameter of the PLATO instrument, which consists of 24 Normal Cameras and 2 Fast Cameras. In order to justify, verify and breakdown NSR-relevant requirements the software simulator PINE was developed. PINE models the signal pathway from a target star to the digital output of a camera based on physical models and considers the major noise contributors. In this paper, the simulator’s coarse mode is introduced which allows fast performance analyses on instrument level. The added value of PINE is illustrated by exemplary applications.

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PLATO 的信号和噪声预算

欧空局的 PLATO 任务旨在探测太阳型恒星周围的陆地行星并确定其特征，同时研究主恒星的特性。噪声信号比（NSR）是 PLATO 仪器的主要性能参数，该仪器由 24 台普通照相机和 2 台快速照相机组成。为了证明、验证和分解与 NSR 相关的要求，开发了软件模拟器 PINE。PINE 以物理模型为基础，模拟了从目标星到照相机数字输出的信号路径，并考虑了主要的噪声因素。本文介绍了模拟器的粗调模式，该模式允许在仪器层面进行快速性能分析。PINE 的附加值将通过示例应用加以说明。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Experimental Astronomy 地学天文-天文与天体物理

CiteScore

5.30

自引率

3.30%

发文量

审稿时长

6-12 weeks

期刊介绍： Many new instruments for observing astronomical objects at a variety of wavelengths have been and are continually being developed. Furthermore, a vast amount of effort is being put into the development of new techniques for data analysis in order to cope with great streams of data collected by these instruments. Experimental Astronomy acts as a medium for the publication of papers of contemporary scientific interest on astrophysical instrumentation and methods necessary for the conduct of astronomy at all wavelength fields. Experimental Astronomy publishes full-length articles, research letters and reviews on developments in detection techniques, instruments, and data analysis and image processing techniques. Occasional special issues are published, giving an in-depth presentation of the instrumentation and/or analysis connected with specific projects, such as satellite experiments or ground-based telescopes, or of specialized techniques.