Internal and External Jovian Magnetic Fields: Community Code to Serve the Magnetospheres of the Outer Planets Community

Internal and External Jovian Magnetic Fields: Community Code to Serve the Magnetospheres of the Outer Planets Community
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内部和外部木星磁场:服务外行星磁层社区的社区代码

DOI:
10.1007/s11214-023-00961-3
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发表时间:
2023
影响因子:
10.3
通讯作者:
Cowley, S. W.
Cowley, S. W.
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
Wilson, R. J.;Vogt, M. F.;Provan, G.;Kamran, A.;James, M. K.;Brennan, M.;Cowley, S. W.

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我们报告了一个新的国际社区编码项目,提供共享的科学计算机代码,执行共同的计算,以帮助规划科学观测,建模和数据分析。我们已经开发了计算木星内部和外部磁场的代码。所有磁场模型代码以四种编程语言(c++, IDL, MATLAB和Python)提供。代码可以在GitHub上免费获得。对于木星的内磁场,我们提出了一些球谐内磁场模型。其中包括JRM33,最新的木星内部磁场模型(Connerney et al. J. Geophys)。Res., Planets 127(2):e07055,),以及更老的类木行星模型(例如JRM09 (Connerney et al. in Geophys.)。地球物理学报。45(6):2590-2596,),6 (Connerney in Planetary Radio emission III, pp. 13-33,), VIP4 (Connerney et al. J.地球物理。)[j] .地球物理学报,2003(6):559 - 564。[j] .空间物理学报,2016,(5):562 - 562 .]内部磁场代码可以很容易地修改为其他行星,只需输入另一个球面谐波磁场模型。根据Connerney等人的模型,我们还开发了代码来计算木星磁碟中由于围绕木星外部流动的方位和径向电流而产生的磁场扰动。Res. 86(A10): 8370-8384;j .地球物理学。[j] .地球物理学报,2016,31(2):444 - 444。内部和外部磁场代码可以结合起来模拟木星磁层中的磁场。最后,我们提供了利用内部和外部磁场模型的场线跟踪软件(c++和c++的Python包装器)。该软件可用于沿着磁力线从木星磁层的任何位置追踪,例如电离层或赤道,也可用于不同的行星。
We report on a new international community coding project to provide shared scientific computer code that performs common calculations to aid in planning scientific observations, modeling, and data analysis. We have developed code which calculates Jupiter’s internal and external magnetic fields. All magnetic field model code is provided in four programming languages (C++, IDL, MATLAB and Python). The code is freely available on GitHub. For Jupiter’s internal magnetic field, we present a number of spherical harmonic internal magnetic field models. These include JRM33, the latest Jupiter internal magnetic field model (Connerney et al. in J. Geophys. Res., Planets 127(2):e07055, ), as well as older jovian models (e.g. JRM09 (Connerney et al. in Geophys. Res. Lett. 45(6):2590–2596, ), O6 (Connerney in Planetary Radio Emissions III, pp. 13–33, ), VIP4 (Connerney et al. in J. Geophys. Res. 103(A6):11,929–11,940, ) and VIPAL (Hess et al. in J. Geophys. Res. Space Phys. 116(A5):A05217, )). The internal magnetic field code can be easily modified for other planets by simply inputting another spherical harmonic magnetic field model. We have also developed code to calculate the magnetic field perturbations due to the azimuthal and radial currents flowing externally around Jupiter in the jovian magnetodisc according to the model of Connerney et al. (J. Geophys. Res. 86(A10):8370–8384, ; J. Geophys. Res. Space Phys. 125(10):e28138, ). The internal and external magnetic field codes can be combined to model the magnetic field in Jupiter’s magnetosphere. Finally, we provide field-line tracing software (C++ and a Python wrapper for C++) that utilizes the internal and external magnetic field models. The software can be used to trace along field lines from any position in the jovian magnetosphere to, for example, the ionosphere or an equator, and can also be utilized at different planets.
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