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J/A+A/607/A126        GalIMF version 1.0.0                          (Yan+, 2017)

The optimally sampled galaxy-wide stellar initial mass function. Observational tests and the publicly available GalIMF code. Yan Z., Jerabkova T., Kroupa P. <Astron. Astrophys. 607, A126 (2017)> =2017A&A...607A.126Y (SIMBAD/NED BibCode)
ADC_Keywords: Models ; Galaxy catalogs Keywords: galaxies: stellar content - galaxies: luminosity function, mass function - galaxies: star formation - galaxies: formation - galaxies: star clusters: general - galaxies: evolution Abstract: Here we present a full description of the integrated galaxy-wide initial mass function (IGIMF) theory in terms of the optimal sampling and compare it with available observations. Optimal sampling is the method we use to discretize the IMF deterministically into stellar masses. Evidence indicates that nature may be closer to deterministic sampling as observations suggest a smaller scatter of various relevant observables than random sampling would give, which may result from a high level of self-regulation during the star formation process. We document the variation of IGIMFs under various assumptions. The results of the IGIMF theory are consistent with the empirical relation between the total mass of a star cluster and the mass of its most massive star, and the empirical relation between the star formation rate (SFR) of a galaxy and the mass of its most massive cluster. Particularly, we note a natural agreement with the empirical relation between the IMF power-law index and the SFR of a galaxy. The IGIMF also results in a relation between the SFR of a galaxy and the mass of its most massive star such that, if there were no binaries, galaxies with SFR<10-4M/yr should host no Type II supernova events. In addition, a specific list of initial stellar masses can be useful in numerical simulations of stellar systems. For the first time, we show optimally sampled galaxy-wide IMFs (OSGIMF) that mimic the IGIMF with an additional serrated feature. Finally, a Python module, GalIMF, is provided allowing the calculation of the IGIMF and OSGIMF dependent on the galaxy-wide SFR and metallicity. Description: GalIMF stands for the Galaxy-wide Initial Mass Function. It is a Python 3 module that allows users to compute galaxy-wide initial stellar mass functions based on locally derived empirical constraints following the IGIMF theory. See the GalIMF homepage for more information. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file 512 382 GalIMF version 1.0.0
Acknowledgements: Zhiqiang Yan, yan(at)
(End) Patricia Vannier [CDS] 07-Aug-2017
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

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