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Physics of Eclipsing Binaries. V. General Framework for Solving the Inverse Problem
The Astrophysical Journal Supplement Series ( IF 8.7 ) Pub Date : 2020-10-08 , DOI: 10.3847/1538-4365/abb4e2
Kyle E. Conroy 1 , Angela Kochoska 1 , Daniel Hey 2, 3 , Herbert Pablo 4 , Kelly M. Hambleton 1 , David Jones 5, 6 , Joseph Giammarco 7 , Michael Abdul-Masih 8 , Andrej Prša 1
Affiliation  

PHOEBE 2 is a Python package for modeling the observables of eclipsing star systems, but until now it has focused entirely on the forward model—that is, generating a synthetic model given fixed values of a large number of parameters describing the system and the observations. The inverse problem, obtaining orbital and stellar parameters given observational data, is more complicated and computationally expensive as it requires generating a large set of forward models to determine which set of parameters and uncertainties best represents the available observational data. The process of determining the best solution and also of obtaining reliable and robust uncertainties on those parameters often requires the use of multiple algorithms, including both optimizers and samplers. Furthermore, the forward model of PHOEBE has been designed to be as physically robust as possible, but it is computationally expensive compared to other codes. It is useful, therefore, to use whichever code is...

中文翻译:

渐进二进制的物理。五。解决反问题的一般框架

PHOEBE 2是一个Python软件包,用于对日食恒星系统的可观测值进行建模,但是到目前为止,它一直完全专注于正向模型,也就是说,在给定描述系统和观测值的大量参数固定值的情况下,生成合成模型。对于给定的观测数据获得轨道和恒星参数的反问题更加复杂且计算量大,因为它需要生成大量的正向模型来确定哪组参数和不确定性最能代表可用的观测数据。确定最佳解决方案以及获取这些参数的可靠和可靠不确定性的过程通常需要使用多种算法,包括优化器和采样器。此外,PHOEBE的前向模型已被设计为在物理上尽可能地健壮,但是与其他代码相比,它的计算量很大。因此,使用任何代码都是有用的...
更新日期:2020-10-12
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