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We develop a new numerical scheme for solving the radiative transfer equation in a spherically symmetric system. This scheme does not rely on any kind of diffusion approximation and it is accurate for optically thin, thick, and intermediate…

天体物理仪器与方法 · 物理学 2018-05-31 Torsten Stamer , Shu-ichiro Inutsuka

We present RUBIS (Rotation code Using Barotropy conservation over Isopotential Surfaces), a fully Python-based centrifugal deformation program available at \url{https://github.com/pierrehoudayer/RUBIS}. The code has been designed to…

太阳与恒星天体物理 · 物理学 2023-07-19 Pierre S. Houdayer , Daniel R. Reese

We present an open-source, performant, pure-python molecular dynamics (MD) suite for non-ideal plasmas. The code, Sarkas, aims to accelerate the research process by providing an MD code but also pre- and post-processing tools. Sarkas offers…

等离子体物理 · 物理学 2022-01-05 Luciano G. Silvestri , Lucas J. Stanek , Gautham Dharuman , Yongjun Choi , Michael S. Murillo

A finite element method for solving the resonance line transfer problem in moving media is presented. The algorithm works in three spatial dimensions on unstructured grids which are adaptively refined by means of an a posteriori error…

天体物理学 · 物理学 2009-11-07 E. Meinkoehn , S. Richling

Wavelength calibration is a routine and critical part of any spectral work-flow, but many astronomers still resort to matching detected peaks and emission lines by hand. We present RASCAL (RANSAC Assisted Spectral CALibration), a python…

天体物理仪器与方法 · 物理学 2019-12-13 Josh Veitch-Michaelis , Marco C Lam

radioactivedecay is a Python package for radioactive decay modelling. It contains functions to fetch decay data, define inventories of nuclides and perform decay calculations. The default nuclear decay dataset supplied with radioactivedecay…

计算物理 · 物理学 2022-03-21 Alex Malins , Thom Lemoine

We present the open-source radiative transfer code named HELIOS, which is constructed for studying exoplanetary atmospheres. In its initial version, the model atmospheres of HELIOS are one-dimensional and plane-parallel, and the equation of…

We developed a Python based framework for astronomical image processing and analysis. Astronomical image loading, normalizing, stacking, and filtering processes represent visible range images from grayscale. Besides, the blending process…

天体物理仪器与方法 · 物理学 2024-10-10 Tanmoy Bhowmik , MD Fardin Islam , Kazi Nusrat Tasneem , Rantideb Roy , Rownok Shahariar

Characterizing the temporal variability of astrophysical sources is key to understanding the underlying physical processes driving their emissions. This work introduces a gammapy_SyLC, a Python package that offers tools to simulate and fit…

高能天体物理现象 · 物理学 2025-03-19 Claudio Galelli

This paper introduces Colossus, a public, open-source python package for calculations related to cosmology, the large-scale structure (LSS) of matter in the universe, and the properties of dark matter halos. The code is designed to be fast…

宇宙学与河外天体物理 · 物理学 2018-12-20 Benedikt Diemer

Determining molecular abundances in astrophysical environments is crucial for interpreting observational data and constraining physical conditions in these regions. Chemical modelling tools are essential for simulating the complex processes…

天体物理仪器与方法 · 物理学 2025-09-17 Luke Keyte , Jason Ran

We present a flexible, open-source Python package for the accurate simulation of the $z$-propagation dynamics of ultrashort optical pulses in nonlinear waveguides, especially valid for few-cycle pulses and their interaction. The simulation…

光学 · 物理学 2022-01-05 O. Melchert , A. Demircan

We present the open-source image processing software package PySAP (Python Sparse data Analysis Package) developed for the COmpressed Sensing for Magnetic resonance Imaging and Cosmology (COSMIC) project. This package provides a set of…

天体物理仪器与方法 · 物理学 2020-07-03 S. Farrens , A. Grigis , L. El Gueddari , Z. Ramzi , Chaithya G. R. , S. Starck , B. Sarthou , H. Cherkaoui , P. Ciuciu , J. -L. Starck

We present a largely improved version of CRASH, a 3-D radiative transfer code that treats the effects of ionizing radiation propagating through a given inhomogeneous H/He cosmological density field, on the physical conditions of the gas.…

天体物理学 · 物理学 2009-11-10 A. Maselli , A. Ferrara , B. Ciardi

Accurate photometric and kinematic modelling of disc galaxies requires the inclusion of radiative transfer models. Due to the complexity of the radiative transfer equation (RTE), sophisticated techniques are required. Various techniques…

天体物理学 · 物理学 2009-11-06 Maarten Baes , Herwig Dejonghe

The Python package teareduce has been developed to support teaching activities related to the reduction of astronomical data. Specifically, it serves as instructional material for students participating in practical classes on the…

In recent years, significant advances have been made in exoplanet and brown dwarf observations. By using state-of-the-art models, astronomers can determine properties of their atmospheres, such as temperatures, the presence of clouds, or…

天体物理仪器与方法 · 物理学 2025-10-27 Sam de Regt , Siddharth Gandhi , Louis Siebenaler , Darío González Picos

Remote sensing of the atmospheres of distant worlds motivates a firm understanding of radiative transfer. In this review, we provide a pedagogical cookbook that describes the principal ingredients needed to perform a radiative transfer…

地球与行星天体物理 · 物理学 2019-02-06 Kevin Heng , Mark Marley

We present criptic, the Cosmic Ray Interstellar Propagation Tool using It\^o Calculus, a new open-source software package to simulate the propagation of cosmic rays through the interstellar medium and to calculate the resulting observable…

高能天体物理现象 · 物理学 2022-10-05 Mark R. Krumholz , Roland M. Crocker , Matt L. Sampson

We present a public data release of halo catalogs from a suite of 125 cosmological $N$-body simulations from the Abacus project. The simulations span 40 $w$CDM cosmologies centered on the Planck 2015 cosmology at two mass resolutions,…

宇宙学与河外天体物理 · 物理学 2018-06-13 Lehman H. Garrison , Daniel J. Eisenstein , Douglas Ferrer , Jeremy L. Tinker , Philip A. Pinto , David H. Weinberg