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Package: alfa @ 2.3

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: 144, column: 2)
License

Derivations

SystemTargetDerivationBuild status
x86_64-linux/gnu/store/8cqr2k4jgd0yrrjzyz4c9dnnq2fx3m20-alfa-2.3.drv
x86_64-linuxx86_64-w64-mingw32/gnu/store/msdkkv1zh60pi8p2pw2ngsq670i5hz2n-alfa-2.3.drv
x86_64-linuxx86_64-pc-gnu/gnu/store/7y4ih2wz5hq6q9vwjvmd5jdfsaf17xmc-alfa-2.3.drv
x86_64-linuxx86_64-linux-gnux32/gnu/store/jpfcazz4wf3gglp3cg6xhn59an4qb235-alfa-2.3.drv
    x86_64-linuxriscv64-linux-gnu/gnu/store/zx92s800z11p05c5ar3gf2qfrb23ikhk-alfa-2.3.drv
    x86_64-linuxpowerpc-linux-gnu/gnu/store/ryngqq346pxqd6m83d5zsn03ik3jjp5s-alfa-2.3.drv
      x86_64-linuxpowerpc64-linux-gnu/gnu/store/ldmrmpaxm4m6m11vd5fsxxy77bl8n3kz-alfa-2.3.drv
        x86_64-linuxpowerpc64le-linux-gnu/gnu/store/qxsqva6prz9y031gx2cbbls9h8hnqfbk-alfa-2.3.drv
        x86_64-linuxmips64el-linux-gnu/gnu/store/ivqqg8irxm2kdwibcf07rhfalaagbx5z-alfa-2.3.drv
          x86_64-linuxloongarch64-linux-gnu/gnu/store/lrdhpwkg77xbmskvkpiw9884ihmncxnp-alfa-2.3.drv
          x86_64-linuxi686-w64-mingw32/gnu/store/pyr1kkljq7lgnlmjha005qnm7qq3akxv-alfa-2.3.drv
            x86_64-linuxi586-pc-gnu/gnu/store/sqkb72yl6ns2fhjjhg159wgdsl9x60f6-alfa-2.3.drv
            x86_64-linuxarm-linux-gnueabihf/gnu/store/yk0gkrbmnpn06q7dfa5vbg6cpbayag8d-alfa-2.3.drv
            x86_64-linuxaarch64-linux-gnu/gnu/store/540ldnafj0h693gzvv2vw8qmpqsz620m-alfa-2.3.drv
            x86_64-gnu/gnu/store/apwqx28hr4qyg47s6lghy6032gkjm27i-alfa-2.3.drv
              riscv64-linux/gnu/store/vrg90zf21q47z1ky4qlv5vz8d2zcwiz9-alfa-2.3.drv
              powerpc-linux/gnu/store/39dh6rwmm0030q0f7h8ck24w0zfzqfh0-alfa-2.3.drv
                powerpc64le-linux/gnu/store/jxwppxwizp8jgkfbvamsd91jnab3p9qz-alfa-2.3.drv
                mips64el-linux/gnu/store/s0ax5prcbjb4bsqrnjnl3h1z6dl2walk-alfa-2.3.drv
                  i686-linux/gnu/store/9v8amribj1gkjcixslcf1fzdz1bbk3mr-alfa-2.3.drv
                  i586-gnu/gnu/store/qgq2k7m76a1yz4x8cqrwdm1kx6pd3knv-alfa-2.3.drv
                    armhf-linux/gnu/store/8kkxa1pvbn8phhn4h2bsciry0ffkdf1v-alfa-2.3.drv
                    aarch64-linux/gnu/store/6kpcxji6cbixcfk06jj8vd6qh1jq9z8c-alfa-2.3.drv

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