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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: 110, column: 2)
License

Derivations

SystemTargetDerivationBuild status
x86_64-linux/gnu/store/f23pf3gaa62a8qhb8xpvcbh8sp317hz8-alfa-2.2.drv
x86_64-linuxx86_64-w64-mingw32/gnu/store/yb0mvh3l5jf2nqccwqcqviajvpi8p5rp-alfa-2.2.drv
x86_64-linuxx86_64-linux-gnux32/gnu/store/mzhirhm9dm66j3g2w3kqs1k7q28fmcag-alfa-2.2.drv
    x86_64-linuxriscv64-linux-gnu/gnu/store/azgwk5ia2mb1r824s1v6dziw95lm74wk-alfa-2.2.drv
    x86_64-linuxpowerpc-linux-gnu/gnu/store/6mjbzxwipbw5yxlkk9j32p55piv1v1w6-alfa-2.2.drv
    x86_64-linuxpowerpc64-linux-gnu/gnu/store/ygx8q3pywqz5mifbpk2f2gcn1q4mhrzq-alfa-2.2.drv
      x86_64-linuxpowerpc64le-linux-gnu/gnu/store/hs8q1r20i54prr706jdydiz23khbxpbh-alfa-2.2.drv
      x86_64-linuxmips64el-linux-gnu/gnu/store/xyyrwgl6ai6l53hcw6bk10yj9vy4qnkk-alfa-2.2.drv
      x86_64-linuxi686-w64-mingw32/gnu/store/vjqwhc8dq3qnf5fy7k0kzkis0yh35laf-alfa-2.2.drv
      x86_64-linuxi586-pc-gnu/gnu/store/hfxz76hbf8kcgigkagvyg8c3vyvfqs6b-alfa-2.2.drv
      x86_64-linuxarm-linux-gnueabihf/gnu/store/wan0wm1z4b4xj12y76g5agjdldhc8q56-alfa-2.2.drv
      x86_64-linuxaarch64-linux-gnu/gnu/store/jy0m5wh1plqnd932i4d9y4al1asagvz5-alfa-2.2.drv
      riscv64-linux/gnu/store/azvx5fv3qmclv6mdv53kmyx92msd5m5c-alfa-2.2.drv
      powerpc-linux/gnu/store/5gc64v07448ikyz2gc3i9qp29azn48wl-alfa-2.2.drv
        powerpc64le-linux/gnu/store/dav4px1fzivgn38pqknsz5kgc70in8bi-alfa-2.2.drv
        mips64el-linux/gnu/store/04rjq989r9snanrp56ja9gwiigv9d4xr-alfa-2.2.drv
          i686-linux/gnu/store/x2ykb1i40n9ixh836ihnx2i9i7k4s583-alfa-2.2.drv
          i586-gnu/gnu/store/h39z552sb2nx8if1dsjayvbjazn4j8r5-alfa-2.2.drv
          armhf-linux/gnu/store/32951fg0n53iwp37wilfna11k9p6z2fj-alfa-2.2.drv
          aarch64-linux/gnu/store/y7imkygg19p5aanr6wx9gl1zk14wpn9y-alfa-2.2.drv

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