Fortran-code-on-GitHub

Fortran code on GitHub -- also see fortran-lang package index

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Art and Music

Art1: program written by Richard Williams in 1968. Its purpose was to give non-progammers access to an IBM System/360 Model 40 computer at the University of New Mexico in order to explore artistic and aesthetic uses of the machine.

formidi: small Fortran MIDI sequencer for composing music and exploring algorithmic music, by Vincent Magnin

forsynth: small Fortran synthesizer to explore sound synthesis, sound effects, electronic music, algorithmic music, etc, by Vincent Magnin

MUSICV: Max Mathew's MUSIC V synthesis program, prepared by Bill Schottstaed for gfortran, with additions and fixes by Victor Lazzarini.

TapTempo Fortran: command line taptempo written in modern Fortran, by Vincent Magnin. Listen to a song and hit enter key with style and you'll get the corresponding number of beats per minute (BPM).

Tonbandfetzen: collection of command-line tools to compose music based on audio fragments generated from plain text input, by Jan Berges

uzura3: mpeg audio layer 3 encoder written in Fortran 90/95 (mp3 encoder), by cure-honey. There is also uzura1_fpm that works with the Fortran Package Manager.

XenakisFreeStochasticMusicFortran: working versions of a Xenakis FORTRAN program (Xenakis 1971 Formalized Music p 149)

Astronomy and Astrophysics

1-D-Supernova-shock-radius-evolution: 1-D version of the ZEUS 2-D CODE which solves hydrodynamic equations is applied to a SuperNova Remnant (SNR), by Lorenzo Cavazzini

Adaptive Spherical Overdensity Halo Finder (ASOHF): primarily designed to identify bound dark matter structures (dark matter haloes), as well as their stellar counterparts (galaxies) in the outputs of cosmological simulations. Associated paper: The halo-finding problem revisited: a deep revision of the ASOHF code, by David Vallés-Pérez, Susana Planelles, and Vicent Quilis, Astronomy&Astrophysics, 664 (2022).

ALBUS_ionosphere: determines the ionosphere total electron content (TEC) over any location on the Earth as a function of location and time, by Tony Willis. It then uses the TEC and a model of the Earth's magnetic field to compute the ionosphere's effect on the Faraday Rotion Measure (RM) observed for an astronomical radio source. The ionosphere's contribution to the RM can then be removed.

aquila astrophotography package: small LRGB astrophotography reduction and processing package, by Dominik Gronkiewicz. The package consists of the programs aqstack for stacking and reduction of monochromatic CCD images and aqlrgb for compositing images from many filters into one color picture.

ARTEMIS-P: Anisotropic Ray Tracer for Electromagnetism in Magnetospheres, Ionospheres and Solar wind, including Polarisation, by Baptiste Cecconi and C. Baskevitch

astro-api: makes the astronomical calculations for yr.no, by Frank Thomas Tveter et al. The astro-api software uses the JPL ephemeride tables and the SOFA astronomical library, along with algorithms for quick and precise searches, to provide astronomical data on demand, such as sun/moon rise/set, twilight, polar day/night, moon phase, eclipse, solstice times.

astro-fortran: modern Fortran implementations of standard models used in fundamental astronomy, by Jacob Williams. It is a refactoring of IAU SOFA.

astroTools: command-line tools for astronomy and astrophysics, by AstroFloyd

ATES-Code: ATES hydrodynamics code, by AndreaCaldiroli, computes the temperature, density, velocity and ionization fraction profiles of highly irradiated planetary atmospheres, along with the current, steady-state mass loss rate.

Automatic Line Fitting Algorithm (ALFA): identifies and fits hundreds of lines in emission line spectra in just a few seconds. It does this using a genetic algorithm to optimise the line parameters, by Roger Wesson

BI-spectra and Non-Gaussianity Operator (BINGO): numerically evaluates the scalar bi-spectrum and the non-Gaussianity parameter fNL in single field inflationary models involving the canonical scalar field, by dkhaz. The code is based on the Maldacena formalism to evaluate the bi-spectrum.

CAMB: code for Anisotropies in the Microwave Background, by cmbant

cleanest: semiautomatic removal of cosmic rays in astronomical images, by Nicolás Cardiel and Sergio Pascual

code-ans-qnm-share: computes quasi-normal modes of anisotropic neutron stars, by Vincent Lau Shu Yan

Commander: optimal Monte-carlo Markov chAiN Driven EstimatoR which implements fast and efficient end-to-end CMB posterior exploration through Gibbs sampling, from Cosmoglobe

Compact Object Synthesis and Monte Carlo Investigation Code (COSMIC): rapid binary population synthesis suite with a special purpose of generating realistic compact binary populations. COSMIC can also be used to evolve binaries with BSE in a python environment.

Complete History of Interaction-Powered Supernovae (CHIPS): simulates the circumstellar matter and light curves of interaction-powered transients, by DTsuna et al. Coupling the MESA stellar evolution code and codes implemented by the authors, the user can obtain the circumstellar matter profile and light curves of the interaction-powered supernovae.

Cosmology Object Oriented Package (COOP): Reference: Observational effects of a running Planck mass, by Zhiqi Huang

CosmoSIS: cosmological parameter estimation code, by joezuntz et al. It is a framework for structuring cosmological parameter estimation with a focus on flexibility, re-usability, debugging, verifiability, and code sharing in the form of calculation modules.

CUMC3D-Ver1.28: parallel code for high-energy astrophysical simulations, by Ho Sang (Leon) Chan et al. It includes basic MHD solvers and models for simulating accretion discs around supermassive black holes.

cufQUMC: CUDA Fortran version of QU-fitting with replica exchange MCMC method (parallel tempering), with a Python interface, by Shinsuke Ideguchi

DAOPHOT-MCMC: modified version of the subroutine NSTAR.F which implements a Markov chain Monte Carlo (MCMC) routine for fitting highly blended stellar positions and fluxes, by Sean Terry. This code is installed and implemented within the overall DAOPHOT-II structure.

DarkLim: statistical tools for calculating dark matter exclusion limits and sensitivity estimates, from SPICE/HeRALD

dasilva-invariants: Python package with Fortran code to calculate the adiabiatic invariants K and L* from gridded models of Earth’s magnetic field, by Daniel da Silva and Scot Elkington

D-NEAs: Asteroid Thermal Inertia Analyzer (ASTERIA) software. An associated paper is The low surface thermal inertia of the rapidly rotating near-Earth asteroid, by M. Fenucci et al., Astronomy and Astrophysics (2023)

dStar: computing neutron star structure and evolution, by Edward Brown et al.

DUMSES-hybrid: 3D MPI/OpenMP & MPI/OpenACC Eulerian second-order Godunov (magneto)hydrodynamic simulation code in cartesian, spherical and cylindrical coordinates, by Marc Joos

DYnamics, Age and Metallicity Indicators Tracing Evolution (DYNAMITE): Schwarzschild- and stellar-population modelling of stellar systems

ECLIPSE: code for paper "ECLIPSE: a fast Quadratic Maximum Likelihood estimator for CMB intensity and polarization power spectra" (2021), by J.D. Bilbao-Ahedo et al.

etfFinal: Neutron star inner crust code, by mgeshelley

evelchemevol: one-zone closed-box chemical evolution code written in Fortran with OpenMP, by lukeshingles

exotrending: fast and easy-to-use light curve detrending software for exoplanets, from oscaribv

FastQSL: code associated with Zhang, P., Chen, J., Liu, R. and Wang, C., FastQSL: A Fast Computation Method for Quasi-separatrix Layers. The Astrophysical Journal, 2022, 937, 26

fastSHT: code associated with the paper Accelerating spherical harmonic transforms for a large number of sky maps, by Chi Tian, Siyu Li, and Hao Liu

FEMlimb-Astrophysics: algorithm described in the paper Measuring limb darkening of stars in high-magnification microlensing events by the Finite Element Method, by L. Golchin and S. Rahvar, Monthly Notices of the Royal Astronomical Society (2020)

FluxConserving: Fortran code to compute the flux-density conservation, with a Python interface, by Jean Gomes

Fortran-Astro: module for calculating orbital elements, by Cengiz Yıldırım

fortran-astrodynamics: astrodynamics routines by Yuricst

Fortran-Astrodynamics-Toolkit: aims to be a comprehensive library, written in modern Fortran (Fortran 2003/2008), of all the standard orbital mechanics algorithms, by Jacob Williams

fortranMR: library for reading output files generated by MESA (Modules for Experiments in Stellar Astrophysics), by Joshua Aiken. It extends fortranDF to read in files as a data frame.

GaiaHub: Python/Fortran tool that computes proper motions combining data from Gaia and the Hubble Space Telescope, associated with paper GaiaHub: A Method for Combining Data from the Gaia and Hubble Space Telescopes to Derive Improved Proper Motions for Faint Stars, by del Pino, Andrés et al., The Astrophysical Journal, Volume 933, Issue 1, id.76, 18 pp. (2022)

galacticus: semi-analytic model of galaxy formation - a powerful toolkit for modeling the physics of how galaxies form

GALAXEV-fortran: Galaxy Spectral Evolution Library, by G. Bruzual and S. Charlot

GR1D: general relativistic, spherically symmetry, neutrino transport code for stellar collapse. Associated paper: An Open-Source Neutrino Radiation Hydrodynamics Code for Core-Collapse Supernovae, by Evan O'Connor, Astrophysical Journal Supplement Series, Volume 219, Number 2 (2015)

GYRE Stellar Oscillation Code: Given an input stellar model, GYRE calculates the eigenfrequencies and eigenfunctions for the normal oscillation modes of the model, by rhdtownsend