Astrophysics Source Code Library

Here is a list of professional astrophysics codes. Many of the links below came from the Astrophysics Source Code Library (ASCL); the ASCL now has hundreds of codes and can be found here. The links below have been changed to reflect the new locations of the entries. See also

http://www.cfd-online.com/

http://www.astro-sim.org/

http://www-theorie.physik.unizh.ch/astrosim/code/doku.php

## Accretion Disks

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DUSTY \- Radiation transport in a dusty environment Ivezic, Z., Nenkova, M., & Elitzur, M.

XSTAR \- A program for calculating conditions and spectra of photoionized gases Kallman, T.

## Astrochemistry

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CSENV: A code for the chemistry of CircumStellar ENVelopes Mamon, G. A. http://ascl.net/0104.002

## Astrometry

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StarFinder: A code for stellar field analysis Diolaiti, E. et al. http://ascl.net/0011.001

## Astronomical Databases: Miscellaneous

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CHIANTI: A database for astrophysical emission line spectroscopy CHIANTI Consortium http://ascl.net/9911.004

## Astrophysics general

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AMUSE: Astronphysical Multipurpose Software Environment Portegies Zwart, S, et al. http://amusecode.org

## Atomic Data

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CHIANTI: A database for astrophysical emission line spectroscopy CHIANTI Consortium http://ascl.net/9911.004

## Atomic Processes

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CHIANTI: A database for astrophysical emission line spectroscopy CHIANTI Consortium http://ascl.net/9911.004

CLOUDY: Numerical simulation of plasmas and their spectra Ferland, G. et al. http://ascl.net/9910.001

PopRatio: A program to calculate atomic level populations in astrophysical plasmas Silva, A. I. & Viegas, S. M. http://ascl.net/0202.001

## Black Hole Physics

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BHSKY: Visual distortions near a black hole Nemiroff, R. J. http://ascl.net/9910.006

## Circumstellar Matter

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CSENV: A code for the chemistry of CircumStellar ENVelopes Mamon, G. A. http://ascl.net/0104.002

## Cosmic Microwave Background

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COSMICS: Cosmological initial conditions and microwave anisotropy codes Bertschinger, E. http://ascl.net/9910.004

RADPACK: A RADical compression analysis PACKage for fitting to the CMB Knox, L. http://ascl.net/9910.009

CMBFAST: A microwave anisotropy code Seljak, U. & Zaldarriaga, M. http://ascl.net/9909.004

Icosahedron: The Icosahedron Package for Pixelizing the Sphere Tegmark, M. http://ascl.net/9905.002

## Cosmology: Theory

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COSMICS: Cosmological initial conditions and microwave anisotropy codes Bertschinger, E. http://ascl.net/9910.004

ANGSIZ: A general and practical method for calculating cosmological distances Helbig, P., Kayser, R., & Schramm, T. http://ascl.net/9909.002

PMcode: Particle-Mesh code for cosmological simulations Klypin, A. & Holtzman, J. http://ascl.net/9909.001

RADPACK: A RADical compression analysis PACKage for fitting to the CMB Knox, L. http://ascl.net/9910.009

CMBFAST: A microwave anisotropy code Seljak, U. & Zaldarriaga, M. http://ascl.net/9909.004

## Cosmology: Large-Scale Structure of Universe

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MLAPM: Simulating Structure Formation from Collisionless Matter Knebe, A., Green, A. & Binney, J. http://ascl.net/0104.001

## Dark Matter

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COSMICS: Cosmological initial conditions and microwave anisotropy codes Bertschinger, E. http://ascl.net/9910.004

PMcode: Particle-Mesh code for cosmological simulations Klypin, A. & Holtzman, J. http://ascl.net/9909.001

MLAPM: Simulating Structure Formation from Collisionless Matter Knebe, A., Green, A. & Binney, J. http://ascl.net/0104.001

CMBFAST: A microwave anisotropy code Seljak, U. & Zaldarriaga, M. http://ascl.net/9909.004

## Distance Scale

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ANGSIZ: A general and practical method for calculating cosmological distances Helbig, P., Kayser, R., & Schramm, T. http://ascl.net/9909.002

SLOPES: least-squares linear regression lines for bivariate datasets Feigelson, E. http://ascl.net/9906.001

## Elementary Particles

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COSMICS: Cosmological initial conditions and microwave anisotropy codes Bertschinger, E. http://ascl.net/9910.004

## Galaxies

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### Elliptical

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FASTELL: Fast calculation of a family of elliptical mass gravitational lens models Barkana, R. http://ascl.net/9910.003

### Formation

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MLAPM: Simulating Structure Formation from Collisionless Matter Knebe, A., Green, A. & Binney, J. http://ascl.net/0104.001

SPH_1D: Hierarchical gravity/SPH treecode for simulations of interacting galaxies Olson, K. http://ascl.net/9912.001

### Halos

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MLAPM: Simulating Structure Formation from Collisionless Matter Knebe, A., Green, A. & Binney, J. http://ascl.net/0104.001

### Individual

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FASTELL: Fast calculation of a family of elliptical mass gravitational lens models Barkana, R. http://ascl.net/9910.003

### Interactions

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SPH_1D: Hierarchical gravity/SPH treecode for simulations of interacting galaxies Olson, K. http://ascl.net/9912.001

### Structure

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FASTELL: Fast calculation of a family of elliptical mass gravitational lens models Barkana, R. http://ascl.net/9910.003

### Content

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BSGMODEL: The Bahcall-Soneira Galaxy Model Bahcall, J. N. http://ascl.net/9904.001

### Structure

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BSGMODEL: The Bahcall-Soneira Galaxy Model Bahcall, J. N. http://ascl.net/9904.001

EXTINCT: A Computerized Model of Large-Scale Visual Interstellar Extinction Hakkila, J., Myers, J. M., Stidman, B. J., Hartmann, D. H. http://ascl.net/9906.002

### Bursts

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WINGSPAN: A WINdows Gamma-ray SPectral Analysis program Preece, R. D., Briggs, M. S., Mallozzi R. S., & Brock, M. N. http://ascl.net/9910.007

MILLISEARCH: A Search for Millilensing in BATSE GRB Data Nemiroff, Robert J. http://ascl.net/0101.001

BLOCK: A Bayesian block method to analyze structure in photon counting data Scargle, J. D. http://ascl.net/9909.005 This code is obsolete and yields approximate results; see Bayesian Blocks instead for an algorithm guaranteeing exact global optimization.

### Observations

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WINGSPAN: A WINdows Gamma-ray SPectral Analysis program Preece, R. D., Briggs, M. S., Mallozzi R. S., & Brock, M. N. http://ascl.net/9910.007

### Gravitation

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NBODY family of codes: Numerical Simulations of Many-body (N-body) Gravitational Interactions Aarseth, S. http://ascl.net/1102.006

COSMICS: Cosmological initial conditions and microwave anisotropy codes Bertschinger, E. http://ascl.net/9910.004

GADGET: A code for cosmological simulations of structure formation Springel, V. & Yoshida, N. http://ascl.net/0003.001

## Gravitational Lensing

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FASTELL: Fast calculation of a family of elliptical mass gravitational lens models Barkana, R. http://ascl.net/9910.003

ANGSIZ: A general and practical method for calculating cosmological distances Helbig, P., Kayser, R., & Schramm, T. http://ascl.net/9909.002

MILLISEARCH: A Search for Millilensing in BATSE GRB Data Nemiroff, Robert J. http://ascl.net/0101.001

BHSKY: Visual distortions near a black hole Nemiroff, R. J. http://ascl.net/9910.006

LENSKY: Galactic Microlensing Probability Nemiroff, R. J. http://ascl.net/LENSKY

## Hydrodynamics

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GADGET: A code for cosmological simulations of structure formation Springel, V. & Yoshida, N. http://ascl.net/0003.001

Pencil Code: A high-order code, especially for hydromagnetic turbulence; http://pencil-code.googlecode.com/

## Instrumentation

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### Adaptive Optics

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StarFinder: A code for stellar field analysis Diolaiti, E. et al. http://ascl.net/0011.001

### Detectors

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XSPEC: An X-ray spectral fitting package Arnaud, K., Shafer, R., Haberl, F. & Tennant, A. http://ascl.net/9910.005

ISIS \- A programmable data analysis environment, similar to IDL or matlab, with a strong emphasis on X-ray spectral analysis.

CONSKY: Sky CCD Integration Simulation Nemiroff, R. J. & Rafert, J. B. http://ascl.net/9905.001

WINGSPAN: A WINdows Gamma-ray SPectral Analysis program Preece, R. D., Briggs, M. S., Mallozzi R. S., & Brock, M. N. http://ascl.net/9910.007

### Interferometric

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AIPS: Astronomical Image Processing System AIPS Team http://ascl.net/9911.003

### Photometers

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IRAF: Image Reduction and Analysis Facility IRAF Team http://ascl.net/9911.002

### Spectrographs

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XSPEC: An X-ray spectral fitting package Arnaud, K., Shafer, R., Haberl, F. & Tennant, A. http://ascl.net/9910.005

ISIS \- A programmable data analysis environment, similar to IDL or matlab, with a strong emphasis on X-ray spectral analysis.

IRAF: Image Reduction and Analysis Facility IRAF Team http://ascl.net/9911.002

RVSAO: Digital redshifts and radial velocities Kurtz, M. J. & Mink, D. J. http://ascl.net/9912.003

## ISM

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### Abundances

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CLOUDY: Numerical simulation of plasmas and their spectra Ferland, G. et al. http://ascl.net/9910.001

### Atoms

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CLOUDY: Numerical simulation of plasmas and their spectra Ferland, G. et al. http://ascl.net/9910.001

### Dust

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DDSCAT: The Discrete Dipole approximation for Scattering and absorption of light by irregular particles Draine, B. T. & Flatau, Piotr J. http://ascl.net/0008.001

EXTINCT: A Computerized Model of Large-Scale Visual Interstellar Extinction Hakkila, J., Myers, J. M., Stidman, B. J., Hartmann, D. H. http://ascl.net/9906.002

DUSTY: Radiation transport in a dusty environment Ivezic, Z., Nenkova, M., & Elitzur, M. http://ascl.net/9911.001

### Extinction

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DDSCAT: The Discrete Dipole approximation for Scattering and absorption of light by irregular particles Draine, B. T. & Flatau, Piotr J. http://ascl.net/0008.001

EXTINCT: A Computerized Model of Large-Scale Visual Interstellar Extinction Hakkila, J., Myers, J. M., Stidman, B. J., Hartmann, D. H. http://ascl.net/9906.002

DUSTY: Radiation transport in a dusty environment Ivezic, Z., Nenkova, M., & Elitzur, M. http://ascl.net/9911.001

### Molecules

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RATRAN: Radiative transfer and molecular excitation in one and two dimensions Hogerheijde, Michiel & van der Tak, Floris http://ascl.net/RATRAN

CSENV: A code for the chemistry of CircumStellar ENVelopes Mamon, G. A. http://ascl.net/0104.002

## Large-Scale Structure Of The Universe

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COSMICS: Cosmological initial conditions and microwave anisotropy codes Bertschinger, E. http://ascl.net/9910.004

PMcode: Particle-Mesh code for cosmological simulations Klypin, A. & Holtzman, J. http://ascl.net/9909.001

CMBFAST: A microwave anisotropy code Seljak, U. & Zaldarriaga, M. http://ascl.net/9909.004

## Line

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### Formation

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XSPEC: An X-ray spectral fitting package Arnaud, K., Shafer, R., Haberl, F. & Tennant, A. http://ascl.net/9910.005

ISIS \- A programmable data analysis environment, similar to IDL or matlab, with a strong emphasis on X-ray spectral analysis.

CLOUDY: Numerical simulation of plasmas and their spectra Ferland, G. et al. http://ascl.net/9910.001

RATRAN: Radiative transfer and molecular excitation in one and two dimensions Hogerheijde, Michiel & van der Tak, Floris http://ascl.net/RATRAN

XSTAR: A program for calculating conditions and spectra of photoionized gases Kallman, T. http://ascl.net/9910.008

PopRatio: A program to calculate atomic level populations in astrophysical plasmas Silva, A. I. & Viegas, S. M. http://ascl.net/0202.001

### Identification

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XSPEC: An X-ray spectral fitting package Arnaud, K., Shafer, R., Haberl, F. & Tennant, A. http://ascl.net/9910.005

ISIS \- A programmable data analysis environment, similar to IDL or matlab, with a strong emphasis on X-ray spectral analysis.

WINGSPAN: A WINdows Gamma-ray SPectral Analysis program Preece, R. D., Briggs, M. S., Mallozzi R. S., & Brock, M. N. http://ascl.net/9910.007

### Data Analysis

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AIPS: Astronomical Image Processing System AIPS Team http://ascl.net/9911.003

ISIS: A method for optimal image subtraction Alard, C. & Lupton, R. http://ascl.net/9909.003

XSPEC: An X-ray spectral fitting package Arnaud, K., Shafer, R., Haberl, F. & Tennant, A. http://ascl.net/9910.005

ISIS \- A programmable data analysis environment, similar to IDL or matlab, with a strong emphasis on X-ray spectral analysis.

StarFinder: A code for stellar field analysis Diolaiti, E. et al. http://ascl.net/0011.001

SLOPES: least-squares linear regression lines for bivariate datasets Feigelson, E. http://ascl.net/9906.001

FTOOLS: A general package of software to manipulate FITS files FTOOLS Team http://ascl.net/9912.002

IRAF: Image Reduction and Analysis Facility IRAF Team http://ascl.net/9911.002

RVSAO: Digital redshifts and radial velocities Kurtz, M. J. & Mink, D. J. http://ascl.net/9912.003

MILLISEARCH: A Search for Millilensing in BATSE GRB Data Nemiroff, Robert J. http://ascl.net/0101.001

BLOCK: A Bayesian block method to analyze structure in photon counting data Scargle, J. D. http://ascl.net/9909.005 This code is obsolete and yields approximate results; see Bayesian Blocks instead for an algorithm guaranteeing exact global optimization.

WINGSPAN: A WINdows Gamma-ray SPectral Analysis program Preece, R. D., Briggs, M. S., Mallozzi R. S., & Brock, M. N. http://ascl.net/9910.007

Icosahedron: The Icosahedron Package for Pixelizing the Sphere Tegmark, M. http://ascl.net/9905.002

SAOimage: A utility for displaying astronomical images in the X11 window environment VanHilst, M. & Mink, D. http://ascl.net/0003.002

### N-Body Simulations

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NBODY family of codes for numerical simulations of many-body (N-body) gravitational interactions Aarseth, S. http://ascl.net/1102.00

GADGET: A code for cosmological simulations of structure formation Springel, V. & Yoshida, N. http://ascl.net/0003.001

### Numerical

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RATRAN: Radiative transfer and molecular excitation in one and two dimensions Hogerheijde, Michiel & van der Tak, Floris http://ascl.net/RATRAN

SPH_1D: Hierarchical gravity/SPH treecode for simulations of interacting galaxies Olson, K. http://ascl.net/9912.001

BLOCK: A Bayesian block method to analyze structure in photon counting data Scargle, J. D. http://ascl.net/9909.005 This code is obsolete and yields approximate results; see Bayesian Blocks instead for an algorithm guaranteeing exact global optimization.

### Statistical

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ISIS: A method for optimal image subtraction Alard, C. & Lupton, R. http://ascl.net/9909.003

SLOPES: least-squares linear regression lines for bivariate datasets Feigelson, E. http://ascl.net/9906.001

RADPACK: A RADical compression analysis PACKage for fitting to the CMB Knox, L. http://ascl.net/9910.009

BLOCK: A Bayesian block method to analyze structure in photon counting data Scargle, J. D. http://ascl.net/9909.005 This code is obsolete and yields approximate results; see Bayesian Blocks instead for an algorithm guaranteeing exact global optimization.

SLstats: Statistics module for the S-Lang interpreter Davis, J. E. http://space.mit.edu/cxc/software/slang/modules/stats/

## Plasmas

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XSPEC: An X-ray spectral fitting package Arnaud, K., Shafer, R., Haberl, F. & Tennant, A. http://ascl.net/9910.005

ISIS \- A programmable data analysis environment, similar to IDL or matlab, with a strong emphasis on X-ray spectral analysis.

CLOUDY: Numerical simulation of plasmas and their spectra Ferland, G. et al. http://ascl.net/9910.001

XSTAR: A program for calculating conditions and spectra of photoionized gases Kallman, T. http://ascl.net/9910.008

WINGSPAN: A WINdows Gamma-ray SPectral Analysis program Preece, R. D., Briggs, M. S., Mallozzi R. S., & Brock, M. N. http://ascl.net/9910.007

PopRatio: A program to calculate atomic level populations in astrophysical plasmas Silva, A. I. & Viegas, S. M. http://ascl.net/0202.001

## Radiation Mechanisms: Non-Thermal

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XSPEC: An X-ray spectral fitting package Arnaud, K., Shafer, R., Haberl, F. & Tennant, A. http://ascl.net/9910.005

ISIS \- A programmable data analysis environment, similar to IDL or matlab, with a strong emphasis on X-ray spectral analysis.

WINGSPAN: A WINdows Gamma-ray SPectral Analysis program Preece, R. D., Briggs, M. S., Mallozzi R. S., & Brock, M. N. http://ascl.net/9910.007

## Radiation Mechanisms: Thermal

[edit | edit source]

XSPEC: An X-ray spectral fitting package Arnaud, K., Shafer, R., Haberl, F. & Tennant, A. http://ascl.net/9910.005

ISIS \- A programmable data analysis environment, similar to IDL or matlab, with a strong emphasis on X-ray spectral analysis.

CLOUDY: Numerical simulation of plasmas and their spectra Ferland, G. et al. http://ascl.net/9910.001

XSTAR: A program for calculating conditions and spectra of photoionized gases Kallman, T. http://ascl.net/9910.008

WINGSPAN: A WINdows Gamma-ray SPectral Analysis program Preece, R. D., Briggs, M. S., Mallozzi R. S., & Brock, M. N. http://ascl.net/9910.007

## Radiative Transfer

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DDSCAT: The Discrete Dipole approximation for Scattering and absorption of light by irregular particles Draine, B. T. & Flatau, Piotr J. http://ascl.net/0008.001

CLOUDY: Numerical simulation of plasmas and their spectra Ferland, G. et al. http://ascl.net/9910.001

RATRAN: Radiative transfer and molecular excitation in one and two dimensions Hogerheijde, Michiel & van der Tak, Floris http://ascl.net/RATRAN

DUSTY: Radiation transport in a dusty environment Ivezic, Z., Nenkova, M., & Elitzur, M. http://ascl.net/9911.001

## Radio Continuum: General

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AIPS: Astronomical Image Processing System AIPS Team http://ascl.net/9911.003

## Radio Lines: General

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AIPS: Astronomical Image Processing System AIPS Team http://ascl.net/9911.003

## Relativity

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BHSKY: Visual distortions near a black hole Nemiroff, R. J. http://ascl.net/9910.006

## Scattering

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DDSCAT: The Discrete Dipole approximation for Scattering and absorption of light by irregular particles Draine, B. T. & Flatau, Piotr J. http://ascl.net/0008.001

## Stars

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### Abundances

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SPECTRUM: A stellar spectral synthesis program Gray, R. O. http://ascl.net/9910.002

### Atmospheres

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CHIANTI: A database for astrophysical emission line spectroscopy CHIANTI Consortium http://ascl.net/9911.004

SPECTRUM: A stellar spectral synthesis program Gray, R. O. http://ascl.net/9910.002

### Circumstellar Matter

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DUSTY: Radiation transport in a dusty environment Ivezic, Z., Nenkova, M., & Elitzur, M. http://ascl.net/9911.001

### Fundamental Parameters

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SPECTRUM: A stellar spectral synthesis program Gray, R. O. http://ascl.net/9910.002

### General

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CONSKY: Sky CCD Integration Simulation Nemiroff, R. J. & Rafert, J. B. http://ascl.net/9905.001

### Imaging

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StarFinder: A code for stellar field analysis Diolaiti, E. et al. http://ascl.net/0011.001

### Individual

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SPECTRUM: A stellar spectral synthesis program Gray, R. O. http://ascl.net/9910.002

### Pre-Main-Sequence

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DUSTY: Radiation transport in a dusty environment Ivezic, Z., Nenkova, M., & Elitzur, M. http://ascl.net/9911.001

### Variables

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CONSKY: Sky CCD Integration Simulation Nemiroff, R. J. & Rafert, J. B. http://ascl.net/9905.001

### Atmosphere

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CHIANTI: A database for astrophysical emission line spectroscopy CHIANTI Consortium http://ascl.net/9911.004

### Gamma-Rays

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WINGSPAN: A WINdows Gamma-ray SPectral Analysis program Preece, R. D., Briggs, M. S., Mallozzi R. S., & Brock, M. N. http://ascl.net/9910.007

### Surveys

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CONSKY: Sky CCD Integration Simulation Nemiroff, R. J. & Rafert, J. B. http://ascl.net/9905.001

## Techniques

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### Image Processing

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ISIS: A method for optimal image subtraction Alard, C. & Lupton, R. http://ascl.net/9909.003

StarFinder: A code for stellar field analysis Diolaiti, E. et al. http://ascl.net/0011.001

FTOOLS: A general package of software to manipulate FITS files FTOOLS Team http://ascl.net/9912.002

### Interferometric

[edit | edit source]

AIPS: Astronomical Image Processing System AIPS Team http://ascl.net/9911.003

### Photometric

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StarFinder: A code for stellar field analysis Diolaiti, E. et al. http://ascl.net/0011.001

IRAF: Image Reduction and Analysis Facility IRAF Team http://ascl.net/9911.002

CONSKY: Sky CCD Integration Simulation Nemiroff, R. J. & Rafert, J. B. http://ascl.net/9905.001

SAOimage: A utility for displaying astronomical images in the X11 window environment VanHilst, M. & Mink, D. http://ascl.net/0003.002

### Radial Velocities

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RVSAO: Digital redshifts and radial velocities Kurtz, M. J. & Mink, D. J. http://ascl.net/9912.003

### Radar Astronomy

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AIPS: Astronomical Image Processing System AIPS Team http://ascl.net/9911.003

### Spectroscopic

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XSPEC: An X-ray spectral fitting package Arnaud, K., Shafer, R., Haberl, F. & Tennant, A. http://ascl.net/9910.005

ISIS \- A programmable data analysis environment, similar to IDL or matlab, with a strong emphasis on X-ray spectral analysis.

CHIANTI: A database for astrophysical emission line spectroscopy CHIANTI Consortium http://ascl.net/9911.004

SPECTRUM: A stellar spectral synthesis program Gray, R. O. http://ascl.net/9910.002

IRAF: Image Reduction and Analysis Facility IRAF Team http://ascl.net/9911.002

RVSAO: Digital redshifts and radial velocities Kurtz, M. J. & Mink, D. J. http://ascl.net/9912.003

WINGSPAN: A WINdows Gamma-ray SPectral Analysis program Preece, R. D., Briggs, M. S., Mallozzi R. S., & Brock, M. N. http://ascl.net/9910.007

## Telescopes

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CONSKY: Sky CCD Integration Simulation Nemiroff, R. J. & Rafert, J. B. http://ascl.net/9905.001

## Ultraviolet: General

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CHIANTI: A database for astrophysical emission line spectroscopy CHIANTI Consortium http://ascl.net/9911.004

IRAF: Image Reduction and Analysis Facility IRAF Team http://ascl.net/9911.002

SAOimage: A utility for displaying astronomical images in the X11 window environment VanHilst, M. & Mink, D. http://ascl.net/0003.002

## X-Rays

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### General

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XSPEC: An X-ray spectral fitting package Arnaud, K., Shafer, R., Haberl, F. & Tennant, A. http://ascl.net/9910.005

ISIS \- A programmable data analysis environment, similar to IDL or matlab, with a strong emphasis on X-ray spectral analysis.

FTOOLS: A general package of software to manipulate FITS files FTOOLS Team http://ascl.net/9912.002

XSTAR: A program for calculating conditions and spectra of photoionized gases Kallman, T. http://ascl.net/9910.008

### Stars

[edit | edit source]

XSTAR: A program for calculating conditions and spectra of photoionized gases Kallman, T. http://ascl.net/9910.008