GNU Data Language 1.0: a free/libre and open-source
drop-in replacement for IDL/PV-WAVE

Park, Jeongbin; Duvert, G.; Coulais, A.; Jung, G. V.; Arabas, Sylwester; Barker, B. W.; Enomoto, Takeshi; Flinois, Sylvain; Gressel, Oliver; Hillberg, T.; Huillet, Thibault; Kohnert, J.; Poplawski, O.; Linage, Eloi Rozier de; Solås, Remi A.; Stagner, L.; Streicher, O.; Tappin, J.; Thomas, Thierry; Wang, Jingwei; Wimmer, Christian

doi:10.21105/joss.04633

JOSS

2022

DOI: 10.21105/joss.04633

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GNU Data Language 1.0: a free/libre and open-source drop-in replacement for IDL/PV-WAVE

Jeongbin Park¹,

G. Duvert²,

A. Coulais³

et al.

Abstract: We present GNU Data Language (GDL), an open-source free incremental compiler for programs written in Interactive Data Language (IDL*) and Precision Visuals -Workstation Analysis and Visualization Environment (PV-WAVE**), two computer languages used for scientific data analysis. GDL is highly compatible with the IDL and PV-WAVE and aims to run any existing IDL codes without any modifications. GDL comes with its dedicated IDE GDL Workbench and Jupyter kernel gdl_kernel to provide a comfortable development enviro… Show more

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2024

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Cited by 3 publications

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Toward an efficient second‐order method for computing the surface gravitational potential on spherical‐polar meshes

Gressel,

Ziegler

2024

Astron Nachr

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Astrophysical accretion discs that carry a significant mass compared with their central object are subject to the effect of self‐gravity. In the context of circumstellar discs, this can, for instance, cause fragmentation of the disc gas, and—under suitable conditions—lead to the direct formation of gas‐giant planets. If one wants to study these phenomena, the disc's gravitational potential needs to be obtained by solving the Poisson equation. This requires to specify suitable boundary conditions. In the case of a spherical‐polar computational mesh, a standard multipole expansion for obtaining boundary values is not practicable. We hence compare two alternative methods for overcoming this limitation. The first method is based on a known Green's function expansion (termed “CCGF”) of the potential, while the second (termed “James' method”) uses a surface screening mass approach with a suitable discrete Green's function. We demonstrate second‐order convergence for both methods and test the weak scaling behavior when using thousands of computational cores. Overall, James' method is found superior owing to its favorable algorithmic complexity of compared with the scaling of the CCGF method.

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Toward an efficient second‐order method for computing the surface gravitational potential on spherical‐polar meshes

Gressel,

Ziegler

2024

Astron Nachr

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The Geomagnetic Stations Network of Mexico (REGMEX): The initial steps towards a real-time monitoring of geomagnetic activity in Mexico

Corona-Romero,

Gonzalez-Esparza,

Villanueva-Hernandez

et al. 2024

Journal of Atmospheric and Solar-Terrestrial Physics

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JWST MIRI Imager Observations of Supernova SN 1987A

Bouchet,

Gastaud,

Coulais

et al. 2024

ApJ

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There exist very few mid-infrared (IR) observations of supernovae (SNe) in general. Therefore, SN 1987A, the closest visible SN in 400 yr, gives us the opportunity to explore the mid-IR properties of SNe, the dust in their ejecta, and the surrounding medium and to witness the birth of an SN remnant (SNR). The James Webb Space Telescope, with its high spatial resolution and extreme sensitivity, gives a new view on these issues. We report on the first imaging observations obtained with the Mid-InfraRed Instrument (MIRI). We build temperature maps and discuss the morphology of the nascent SNR. Our results show that the temperatures in the equatorial ring (ER) are quite nonuniform. This could be due to dust destruction in some parts of the ring, as had been assumed in some previous works. We show that the IR emission extends beyond the ER, illustrating the fact that the shock wave has now passed through this ring to affect the circumstellar medium on a larger scale. Finally, while submillimeter Atacama Large Millimeter Array observations have hinted at the location of the compact remnant of SN 1987A, we note that our MIRI data have found no such evidence.

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GNU Data Language 1.0: a free/libre and open-source drop-in replacement for IDL/PV-WAVE

Cited by 3 publications

References 8 publications

Toward an efficient second‐order method for computing the surface gravitational potential on spherical‐polar meshes

Toward an efficient second‐order method for computing the surface gravitational potential on spherical‐polar meshes

The Geomagnetic Stations Network of Mexico (REGMEX): The initial steps towards a real-time monitoring of geomagnetic activity in Mexico

JWST MIRI Imager Observations of Supernova SN 1987A

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