sMILES SSPs - A library of semi-empirical MILES stellar population models with variable [alpha/Fe] abundances

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ATK_sMILES_SSP_Grid_README_UCLanData.pdf

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sMILES_SSPs_UniversalKroupa.tar.gz

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sMILES_SSPs.tar.gz

data FALSE archive 478 disk0/00/00/03/88 2023-07-12 12:53:22 2026-01-27 13:17:55 2023-07-12 12:53:22 data_collection show Knowles Adam Thomas adamtknowles@gmail.com 0000-0003-1795-9894 Sansom Anne E AESansom@uclan.ac.uk 0000-0002-2782-7388 Vazdekis Alexandre vazdekis@iac.es 0000-0002-6259-8293 Allende Prieto Carlos callende@iac.es 0000-0002-0084-572X sMILES SSPs - A library of semi-empirical MILES stellar population models with variable [alpha/Fe] abundances F510 2023sub_E_C_M_P galaxies, stellar content, element abundances, models, spectra A new library of optical spectral models for analysis of populations of stars, allowing for different population ages, metallicities and [alpha/Fe] element abundance ratios. The models are built from empirical star spectra modified by theoretical star spectra, which are then combined via an initial stellar mass function and weighted by isochrones to produce integrated light spectra of single age, single metallicity, single [alpha/Fe] abundance pattern populations called SSPs. A full description is published in Knowles et al. 2023, Monthly Notices of the Royal Astronomical Society, Volume 523, pp3450-3470. 10.17030/uclan.data.00000388 collection RC06 rdmsupport@lancashire.ac.uk Supervisor Sansom Anne E. AESansom@uclan.ac.uk Theoretical grids of star spectra ds_other 10.17030/uclan.data.00000178 DOI https://uclandata.uclan.ac.uk/id/eprint/178 sMILES: Semi-Empirical MILES Stellar Population Models with Variable [alpha/Fe] Abundances ds_ext https://cloud.iac.es/index.php/s/WnxBSX6G3CnaTkD sMILES SSPs: a library of semi-empirical MILES stellar population modelswith variable [alpha/Fe] abundances pub 10.1093/mnras/stad1647 DOI https://academic.oup.com/mnras/article/523/3/3450/7189909 https://clok.uclan.ac.uk/47128 Stellar Populations in Satellite Galaxies in Close Pairs pub DOI https://doi.org/10.1093/mnras/staf2003 https://knowledge.lancashire.ac.uk/id/eprint/57478 Spectra of semi-empirical stars modified from stars in our Galaxy were combined using available isochrone models and choices of initial mass functions (IMFs) to make SSP spectra. These sMILES SSPs sample 53 ages, from 0.03 to 14 Gyr; 10 metallicities (heavy elements > H and He), from -1.79 to +0.26 dex (on a log scale relative to the Sun's atmospheric metallicity); and [alpha/Fe] abundance patterns from -0.2 to +0.6 dex. The resulting sMILES SSP spectra are in the wavelength range 354.05 to 740.96 nm, with a spectral sampling of 0.09 nm per bin and a spectral resolution of 0.25 nm. The dataset available to anyone from here is for a Kroupa IMF. Additional choices of IMFs are available for the full model set presented on the MILES website at http://miles.ac.es. 2021 2023