![]() ![]() Supersedes the previous calculations, which were built with the In Dec 2021, we updated the models for the stars in the temperature range 17kK - 34 kK, now evaluated in a strict non-LTE regime. The stellar models are built for pure hydrogen and the spectra cover a wavelength range from 90 nm to 2.5 micron. In the future we plan on incorporating these models in the Search facilitiesĪ Grid of Synthetic Spectra for Hot DA White Dwarfs and Its Application in Stellar Population Synthesis In this work we present a grid of LTE and non-LTE synthetic spectra of hot DA white dwarfs. SPS models are available in the subdirectories, according to the labels adopted in the paper. SynCoMiL is given in two files: syncomil_parameters_20191027.fits lists the atmospheric parameters used as input in the calculations, syncomil_fluxes_20191027.fits gives the fluxes, one star per column (1st column gives the wavelength). ![]() a theoretical library in simple stellar population predictions. In this work we build a synthetic stellar library - SynCoMiL (Synthetic Counterpart to the MILES Library) - mimicking the coverage of an empirical library, and Stellar Population Synthesis (SPS) models with different choices of stellar library, tailored to investigate the impact of an empirical vs. To use or not to use synthetic stellar spectra in population synthesis models? ![]() In the future we plan on incorporating these models in the Search facilities. The reference for each He value (log(nHe/nH)) as a function of Teff isĮxample: t10000_g+4.5_sol_Hepoor.fit is the spectrum withġ0000K, log g=+4.5, solar abundance and He-poor. The suffix represents the chemical abundances: The number after t is Teff and the number after g is log g. Limiting metallicity boundaries regarding both solar Matching two extreme helium-rich and helium-poor scenarios, and two Surface gravities in the range 4.5 <= log g <= 6.5, two helium abundances Our grid covers eight temperatures within 10,000 <= Teff <= 65,000, three High-resolution spectraĪre calculated in the range from 100nm to 1,000nm. Moderately cool subdwarf stars is presented. ![]() In this work a new grid of NLTE atmosphere model spectra for hot and A Grid of Synthetic Spectra for Subdwarfs: Non-LTE Line-blanketed Atmosphere Models ![]()
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