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Package: alfa @ 2.2

Synopsis

Automated line fitting algorithm

Description

This package provides ALFA, which can identify and fit hundreds of lines in emission line spectra in just a few seconds with following features:

  • A population of synthetic spectra is generated using a reference line catalogue.

  • The goodness of fit for each synthetic spectrum is calculated. The best sets of parameters are retained and the rest discarded.

  • A new population of synthetic spectra is obtained by averaging pairs of the best performers.

  • A small fraction of the parameters of the lines in the new generation are randomly altered.

  • The process repeats until a good fit is obtained.

Home page
https://nebulousresearch.org/codes/alfa/
Location
gnu/packages/astronomy.scm (line: 101, column: 2)
License

Derivations

SystemTargetDerivationBuild status
x86_64-linux/gnu/store/99swy0bg09yday72llbjjrjs0hrqf0rb-alfa-2.2.drv
x86_64-linuxx86_64-w64-mingw32/gnu/store/vql3dy0fg1zjv7wwbryxdqsdzhrq2lxn-alfa-2.2.drv
x86_64-linuxriscv64-linux-gnu/gnu/store/i0v6nz7y2ac46gvpg9mvdshp3ipy9wha-alfa-2.2.drv
x86_64-linuxpowerpc-linux-gnu/gnu/store/gfvcfz746zbrcchpxr85h4xr47y26m5n-alfa-2.2.drv
x86_64-linuxpowerpc64le-linux-gnu/gnu/store/vxgpyzfd90gy20nz0qk7gidk357vxyad-alfa-2.2.drv
x86_64-linuxmips64el-linux-gnu/gnu/store/1s9fqf7x142kargwjm7vp7pd8913nzma-alfa-2.2.drv
x86_64-linuxi686-w64-mingw32/gnu/store/zsfqd0ikxxw9gbcp2yzp3jzgdr9ffi33-alfa-2.2.drv
x86_64-linuxi586-pc-gnu/gnu/store/sw8wvnn3xl5mcjw1ynp6bmv9hln3rmx8-alfa-2.2.drv
x86_64-linuxarm-linux-gnueabihf/gnu/store/m9wdp5pz7wci6hd2bkwzq71zhwfp4av2-alfa-2.2.drv
x86_64-linuxaarch64-linux-gnu/gnu/store/n24i6fg3bjl1v96w6i4qsi4vqf0s27nk-alfa-2.2.drv
riscv64-linux/gnu/store/mrvclnhmrslycxnl23c2x8q7m8xbhii7-alfa-2.2.drv
    powerpc-linux/gnu/store/11vqvh2saaygpr0f5qqnhpwxlv33w765-alfa-2.2.drv
      powerpc64le-linux/gnu/store/0mc4146vn0hp61r863vm1w3jf9zn0b7v-alfa-2.2.drv
      mips64el-linux/gnu/store/xxbhmm3mdq9si8nv22a89l7anxfzvf57-alfa-2.2.drv
        i686-linux/gnu/store/jy58ha24r6fxx2shn9i4np1wp8mcaj9h-alfa-2.2.drv
        i586-gnu/gnu/store/q059g2f5wskzgz1mfrz51m2pabnzrpmb-alfa-2.2.drv
        armhf-linux/gnu/store/fkajrmib5lwmn5kcmm3as951rf84pvhz-alfa-2.2.drv
        aarch64-linux/gnu/store/y1iq65fs4q693dkd7c4hzp2vpg2jjj23-alfa-2.2.drv

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