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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: 108, column: 2)
License

Derivations

SystemTargetDerivationBuild status
x86_64-linux/gnu/store/zqs51d6v8mgqwgcpakjgpb4c2wcpksbs-alfa-2.2.drv
x86_64-linuxx86_64-w64-mingw32/gnu/store/6swfn079vqf7k38sl9pdq5h1p5n58qm8-alfa-2.2.drv
x86_64-linuxx86_64-linux-gnux32/gnu/store/6azcskc73i2fq3ws0f527rlisbmxdd6w-alfa-2.2.drv
    x86_64-linuxriscv64-linux-gnu/gnu/store/fxip5123ccx92yxgm0sqvyfv6528q77g-alfa-2.2.drv
    x86_64-linuxpowerpc-linux-gnu/gnu/store/amx1bl95cxlcwvi2hhcp9i5d4ac9qa0m-alfa-2.2.drv
    x86_64-linuxpowerpc64-linux-gnu/gnu/store/3ag7wx1nmm62vz8jrcly5nql2dh7yx4k-alfa-2.2.drv
      x86_64-linuxpowerpc64le-linux-gnu/gnu/store/y33j8g4b9zgmmp74xfdj2l4dx9salk61-alfa-2.2.drv
      x86_64-linuxmips64el-linux-gnu/gnu/store/4qiwpc1zrklk1xzkisjh79jvrm7mmcxn-alfa-2.2.drv
      x86_64-linuxi686-w64-mingw32/gnu/store/1xvay7lbgw5bamlcqvz38cfp0xxqg43d-alfa-2.2.drv
      x86_64-linuxi586-pc-gnu/gnu/store/rx1dj3siw186b65n0sxn0pvsdf0rn4il-alfa-2.2.drv
      x86_64-linuxarm-linux-gnueabihf/gnu/store/d3bn86a1cmd7w7d096xillr6zyymxrrm-alfa-2.2.drv
      x86_64-linuxaarch64-linux-gnu/gnu/store/lbccyl22fgsibg2dkkhyspbw3n6kf85k-alfa-2.2.drv
      riscv64-linux/gnu/store/ybxw7az9a2wrq3w8hygxdl9p6pb07cxd-alfa-2.2.drv
      powerpc-linux/gnu/store/srd3p67i2bzwz819zrskj543s601fn5k-alfa-2.2.drv
        powerpc64le-linux/gnu/store/4khpm458xiwrabwjhgy3lg57ixgf87bi-alfa-2.2.drv
        mips64el-linux/gnu/store/j31mkl7h0yvmqzla8f2md5m963wbajzz-alfa-2.2.drv
          i686-linux/gnu/store/5xm8ca1xi6bl1dbq9p69dvk72gk85897-alfa-2.2.drv
          i586-gnu/gnu/store/s0sjpwsrnz1iwb7cg1rsbcgnyn98fz44-alfa-2.2.drv
          armhf-linux/gnu/store/9k431sr287i5hdq6c0qp5q7rqs4vw5l6-alfa-2.2.drv
          aarch64-linux/gnu/store/bcssf2h1ycdcjy3x5hqsijq1gdxm0rq4-alfa-2.2.drv

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