能见度
干涉测量
物理
星星
干扰(通信)
大气湍流
光学
天文干涉仪
湍流
天体物理学
天文
遥感
计算机科学
气象学
频道(广播)
地质学
计算机网络
作者
P. Rodríguez-Ovalle,A. Mendi-Martos,A . Angulo-Manzanas,I. Reyes-Rodríguez,M. Pérez-Arrieta,M. A. Illarramendi,A. Sanchez-Lavega
出处
期刊:Cornell University - arXiv
日期:2023-01-01
标识
DOI:10.48550/arxiv.2302.11925
摘要
In this work we present an observational technique and a detailed analysis of the stellar interferograms produced by three bright stars: Betelgeuse, Rigel and Sirius. It is shown that the atmospheric turbulence is responsible for the reduction of the long-exposure fringe visibility of the obtained interference patterns. By using different baselines in our interferometer, we are able to distinguish the decay of the visibility with the baseline, how different parameters such us the diameter of the holes in our interferometer or their distribution affects the pattern, and to measure the turbulence with the estimation of the Fried parameter r0. The work and methodology are presented as a method for postgraduate students that targets practical learning of optical interferometry in astronomy and how it is affected by several causes, such as the atmospheric turbulence.
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