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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: 104, column: 2)
License

Derivations

SystemTargetDerivationBuild status
x86_64-linux/gnu/store/aryw69jj34dasd88bjnlargr15s6phn5-alfa-2.2.drv
x86_64-linuxx86_64-w64-mingw32/gnu/store/44699zy9mgy24pmx8aghdhj66sq9lbgg-alfa-2.2.drv
x86_64-linuxriscv64-linux-gnu/gnu/store/k4vhy6ci3kfmnmq8bqr71lwdil4qq1a6-alfa-2.2.drv
x86_64-linuxpowerpc-linux-gnu/gnu/store/y9ifwcwsd2fm6zww7kvziw9bq8w2758r-alfa-2.2.drv
x86_64-linuxpowerpc64le-linux-gnu/gnu/store/mpad274x7w4p6na5fqarzhl646ispn4p-alfa-2.2.drv
x86_64-linuxmips64el-linux-gnu/gnu/store/ra0sddryr4kvvdz5gbqi6cvnijyfb0aq-alfa-2.2.drv
x86_64-linuxi686-w64-mingw32/gnu/store/9bada8agijn6jfk9c9l8kl1vjrnb6025-alfa-2.2.drv
x86_64-linuxi586-pc-gnu/gnu/store/icbj4fw467gqh32y9h5lxkn4hw9f0zax-alfa-2.2.drv
x86_64-linuxarm-linux-gnueabihf/gnu/store/6kzyfmcj05n3qiyxwhyl75friaa7bw4s-alfa-2.2.drv
x86_64-linuxaarch64-linux-gnu/gnu/store/43sccwxjcn8ilh67pq85mpzm2g7wid9n-alfa-2.2.drv
riscv64-linux/gnu/store/26rqrajnr4n8a1qczgwbvjwvzwj8j7wr-alfa-2.2.drv
powerpc-linux/gnu/store/g9pwazdx4kjj1jr745f1mnkh7dl2czsw-alfa-2.2.drv
    powerpc64le-linux/gnu/store/55rzvfxzw316siz0l4fvcmy039z00f51-alfa-2.2.drv
    mips64el-linux/gnu/store/w84la2fvqswvgvi74da1r38ia9b3g69p-alfa-2.2.drv
      i686-linux/gnu/store/8ijwa8xmm8hifb9l1q2fj6929mh0pzxh-alfa-2.2.drv
      i586-gnu/gnu/store/d9isp9zvbd0idzswm2dadydyxhxhb3q0-alfa-2.2.drv
      armhf-linux/gnu/store/yxgiz7p4j5jl8n58a4y9b2fvqjq66yik-alfa-2.2.drv
      aarch64-linux/gnu/store/9lpq3zdrikn5wwz3v42yfi8nmmx977mk-alfa-2.2.drv

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