2026-04-13T13:22:34Zhttps://recercat.cat/oai/request

oai:recercat.cat:2445/1210162025-12-05T17:01:16Zcom_2072_1057col_2072_478823col_2072_478904col_2072_478917

HfS, Hyperfine Structure Fitting Tool Estalella, Robert Molècules Estructura molecular Molecules Molecular structure Hyperfine Structure Fitting (HfS) is a tool to fit the hyperfine structure of spectral lines with multiple velocity components. The HfS_nh3 procedures included in HfS simultaneously fit the hyperfine structure of the NH3 (J, K) = (1, 1) and (2, 2) transitions, and perform a standard analysis to derive ${T}_{\mathrm{ex}}$, NH3 column density, ${T}_{\mathrm{rot}}$, and ${T}_{{\rm{k}}}$. HfS uses a Monte Carlo approach for fitting the line parameters. Special attention is paid to the derivation of the parameter uncertainties. HfS includes procedures that make use of parallel computing for fitting spectra from a data cube. 2018-03-22T14:24:11Z 2018-03-22T14:24:11Z 2017-02 2018-03-22T14:24:11Z info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Reproducció del document publicat a: https://doi.org/10.1088/1538-3873/129/972/025003 Publications of the Astronomical Society of the Pacific, 2017, vol. 129, num. 025003 https://doi.org/10.1088/1538-3873/129/972/025003 (c) Estalella, Robert, 2017 info:eu-repo/semantics/openAccess Astronomical Society of the Pacific Articles publicats en revistes (Física Quàntica i Astrofísica)