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Exoplanet Detection by Astrometric Method
Xu, W. W.; Liao, X. H.; Zhou, Y. H. +1 more
As we known, the exoplanets are mostly detected by the methods of radial velocity and transit, only one is found by the astrometric method. As the data of the gaia to be released, astrometry will become one of the most important method for detecting exoplanets gradually. Based on the position sequence of stars, this paper discusses the calculation…
Analogue Simulation and Orbital Solving Algorithm of Astrometric Exoplanet Detection
Ji, J. H.; Huang, P. H.
Astrometry is an effective method to detect exoplanets. It has many advantages that other detection methods do not bear, such as providing three dimensional planetary orbit and determining the planetary mass. Astrometry will enrich the sample of exoplanets. As the high-precision astrometric satellite Gaia (Global Astrometry interferometer for Astr…
Identifying and Tracking Solar Photospheric Bright Points Based on Three-dimensional Segmentation Technology
Feng, S.; Ji, K. F.; Xiong, J. P. +3 more
Photospheric bright points (PBPs) are tiny and short-lived phenomena which can be seen within dark inter-granular lanes. In this paper, we develop a new method to identify and track the PBPs in the three-dimensional data cube. Different from the previous way such as Detection-Before-Tracking, this method is based on the Tracking-While-Detection. U…