A new grid of evolutionary synthesis models
M. Moll\'a,(1) M.L. Garc\'ia-Vargas,(2), Alessandro Bressan,(3) and, Pedro G\'omez-Alvarez (4), ((1) Depto. de Investigacion Basica, CIEMAT,, Madrid, Spain, (2)FRACTAL, Las Rozas de Madrid, Spain, (3) INAF Osservatorio, Astronomico di Padova, Padova, Italy, (4)ESAC
TL;DR
This paper introduces a new set of evolutionary synthesis models for stellar populations, emphasizing the use of NLTE atmosphere models for hot stars to improve ionizing spectrum predictions.
Contribution
It presents a novel grid of models incorporating NLTE atmospheres for hot stars, enhancing the accuracy of stellar population simulations.
Findings
Improved modeling of ionizing spectra for stellar populations.
Enhanced accuracy in evolutionary synthesis models.
Broader coverage of age and metallicity ranges.
Abstract
We present new evolutionary synthesis models for Single Stellar Populations covering a wide range in age and metallicity. The most important difference with existing models is the use of NLTE atmosphere models for the hot stars (O, B, WR, post-AGB stars, and planetary nebulae) that have an important impact in the stellar cluster's ionizing spectra.
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Taxonomy
TopicsStellar, planetary, and galactic studies · Astronomy and Astrophysical Research · Scientific Research and Discoveries