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We present new numerical tools to analyse cosmic void catalogues, implemented inside the CosmoBolognaLib, a large set of Open Source C++/Python numerical libraries. The CosmoBolognaLib provides a common numerical environment for…

Cosmology and Nongalactic Astrophysics · Physics 2017-11-22 Tommaso Ronconi , Federico Marulli

Cosmological correlators hold the key to high-energy physics as they probe the earliest moments of our Universe, and conceal hidden mathematical structures. However, even at tree-level, perturbative calculations are limited by technical…

Cosmology and Nongalactic Astrophysics · Physics 2024-08-20 Denis Werth , Lucas Pinol , Sébastien Renaux-Petel

This paper introduces \texttt{infotheory}: a package written in C++ and usable from Python and C++, for multivariate information theoretic analyses of discrete and continuous data. This package allows the user to study the relationship…

Information Theory · Computer Science 2021-06-11 Madhavun Candadai , Eduardo J. Izquierdo

The quality of modern astronomical data, the power of modern computers and the agility of current image-processing software enable the creation of high-quality images in a purely digital form. The combination of these technological…

Astrophysics · Physics 2008-11-26 T. A. Rector , Z. G. Levay , L. M. Frattare , J. English , K. Pu'uohau-Pummill

These lectures were addressed to nonspecialists willing to learn some basic facts, approaches, tools and observational evidence which conform modern cosmology. The aim is also to try to complement the many excellent treatises that exists on…

General Relativity and Quantum Cosmology · Physics 2007-05-23 Emilio Elizalde

We present a light and fast, public available, ray-tracer {\tt Splotch} software tool which supports the effective visualization of cosmological simulations data. We describe the algorithm it relies on, which is designed in order to deal…

Astrophysics · Physics 2008-12-18 K. Dolag , M. Reinecke , C. Gheller , S. Imboden

We present Artificial Stellar Populations (ArtPop), an open-source Python package for synthesizing stellar populations and generating artificial images of fully populated stellar systems. The code is designed to be intuitive to use and as…

Astrophysics of Galaxies · Physics 2022-12-21 Johnny P. Greco , Shany Danieli

In this article we describe how we successfully incorporated data analysis in Python in a first-year laboratory course without significantly altering the course structure and without overburdening students. We show how we created and used…

Physics Education · Physics 2023-09-13 Eugenio Tufino , Stefano Oss , Micol Alemani

Astronomical data take on a multitude of forms -- catalogs, data cubes, images, and simulations. The availability of software for rendering high-quality three-dimensional graphics lends itself to the paradigm of exploring the incredible…

Instrumentation and Methods for Astrophysics · Physics 2015-06-16 Brian R. Kent

This is a written version of a series of lectures aimed at undergraduate students in astrophysics/particle theory/particle experiment. We summarize the important progress made in recent years towards understanding high energy astrophysical…

Physics Education · Physics 2016-06-16 Luis A. Anchordoqui

We present AstroPhot, a fast, powerful, and user-friendly Python based astronomical image photometry solver. AstroPhot incorporates automatic differentiation and GPU (or parallel CPU) acceleration, powered by the machine learning library…

Instrumentation and Methods for Astrophysics · Physics 2023-09-08 Connor Stone , Stephane Courteau , Jean-Charles Cuillandre , Yashar Hezaveh , Laurence Perreault-Levasseur , Nikhil Arora

Astronomy has been at the forefront of the development of the techniques and methodologies of data intensive science for over a decade with large sky surveys and distributed efforts such as the Virtual Observatory. However, it faces a new…

Instrumentation and Methods for Astrophysics · Physics 2012-08-14 Matthew J. Graham , S. G. Djorgovski , Ashish Mahabal , Ciro Donalek , Andrew Drake , Giuseppe Longo

We introduce PyMGal, a Python package for generating optical mock observations of galaxies from hydrodynamical simulations. PyMGal reads the properties of stellar particles from these simulations and generates spectral energy distributions…

Astrophysics of Galaxies · Physics 2025-07-02 Patrick Janulewicz , Weiguang Cui

The Standards of Fundamental Astronomy (SOFA) is a service provided by the International Astronomical Union (IAU) that offers algorithms and software for astronomical calculations, which was released in two versions by FORTRAN 77 and ANSI…

Instrumentation and Methods for Astrophysics · Physics 2023-10-18 Jianghui Ji , Dongjie Tan , Chunhui Bao , Xiumin Huang , Shoucun Hu , Yao Dong , Su Wang

The Astrophysics Source Code Library (ASCL) contains 3000 metadata records about astrophysics research software and serves primarily as a registry of software, though it also can and does accept code deposit. Though the ASCL was started in…

Instrumentation and Methods for Astrophysics · Physics 2022-12-27 Alice Allen

Common analysis techniques in multi-messenger astronomy involve hypothesis tests with unbinned log-likelihood (LLH) functions using data recorded in celestial coordinates to identify sources of high-energy cosmic particles in the Universe.…

Instrumentation and Methods for Astrophysics · Physics 2019-08-15 Martin Wolf

AsaPy is a custom-made Python library designed to simplify and optimize the analysis of aerospace simulation data. Instead of introducing new methodologies, it excels in combining various established techniques, creating a unified,…

Most research data collections created or used by astronomers are intrinsically multi-dimensional. In contrast, all visual representations of data presented within research papers are exclusively 2-dimensional. We present a resolution of…

Astrophysics · Physics 2008-11-26 David G. Barnes , Christopher J. Fluke

ArchNEMESIS is an open-source Python package developed for the analysis of remote sensing spectroscopic observations of planetary atmospheres. It is based on the widely used NEMESIS radiative transfer and retrieval tool, which has been…

Instrumentation and Methods for Astrophysics · Physics 2025-07-29 Juan Alday , Joseph Penn , Patrick G. J. Irwin , Jonathon P. Mason , Jingxuan Yang

This article looks at philosophical aspects and questions that modern astrophysical research gives rise to. Other than cosmology, astrophysics particularly deals with understanding phenomena and processes operating at "intermediate" cosmic…

History and Philosophy of Physics · Physics 2015-10-13 Sibylle Anderl