SynCOM: An Empirical Model for High-resolution Simulations of Transient Solar Wind Flows

被引:0
|
作者
Moraes Filho, Valmir P. [1 ,2 ]
Uritsky, Vadim M. [1 ,2 ]
Thompson, Barbara J. [2 ]
Gibson, Sarah E. [3 ]
DeForest, Craig E. [4 ]
机构
[1] Catholic Univ Amer, Dept Phys, 620 Michigan Ave NE, Washington, DC 20064 USA
[2] NASA Goddard Space Flight Ctr, 8800 Greenbelt Rd, Greenbelt, MD 20771 USA
[3] Univ Corp Atmospher Res, Boulder, CO USA
[4] Southwest Res Inst, San Antonio, TX USA
来源
ASTROPHYSICAL JOURNAL | 2024年 / 975卷 / 02期
关键词
INTERCHANGE RECONNECTION; HOUGH TRANSFORM; TRACKING; OUTFLOWS; BALLTRACKING; ORIGIN; CORONA; WAVES;
D O I
10.3847/1538-4357/ad7a77
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
The Synthetic Corona Outflow Model (SynCOM), an empirical model, simulates the solar corona's dynamics to match high-resolution observations, providing a useful resource for testing velocity measurement algorithms. SynCOM generates synthetic images depicting radial variability in total brightness and includes stochastic elements for plasma outflows and instrumental noise. It employs a predefined probability distribution for flow velocity and an adjustable signal-to-noise ratio to evaluate different data analysis methods for coronal flows. By adjusting parameters to match specific coronal and instrumental conditions, SynCOM offers a platform to assess these methods for determining coronal velocity and acceleration. Validating these measurements would help us to understand the origins of the solar wind and support missions such as the Polarimeter to Unify the Corona and Heliosphere (PUNCH). In this study, we demonstrate how SynCOM can be employed to assess the precision and performance of two different flow-tracking methods. By providing a ground truth based on observational data, we highlight the importance of SynCOM in confirming observational standards for detecting coronal flows.
引用
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页数:15
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