PopStar I：进化综合模型描述
PopStar I: Evolutionary synthesis models description
摘要：
我们提出了新的进化合成模型的简单恒星星族广泛的年龄和金属丰度。模型是基于帕多瓦等时线。光谱库的核心由中等分辨率的Lejeune等人的大气模型提供。这些光谱是由NLTE大气模型的热恒星，有一个重要的影响，在星团的电离光谱：O，B和WR恒星光谱的早期年龄，和光谱后AGB恒星和行星状星云，在中期和老年。在年轻的时候，我们的模型比较以及与其他现有的模型，但我们发现，列入星云连续，不考虑在其他几个模型，reddens显着的综合颜色非常年轻的恒星星族。这与专门为研究星暴星系而设计的光谱合成代码的结果是一致的。在中、老年龄，与文献模型的一致性较好，特别是，我们很好地再现了观测到的大麦哲伦星云中星团的颜色。由于能够产生良好的综合光谱从远紫外到红外在任何年龄，我们认为我们的模型是特别适合于高红移星系的研究。这些模型可在网站{http：//www.fractal-es.com/SEDmod.htm}上查阅，也可通过PopStar服务器上的虚拟观测工具查阅。
英文摘要：
We present new evolutionary synthesis models for Simple Stellar Populations for a wide range of ages and metallicities. The models are based on the Padova isochrones. The core of the spectral library is provided by the medium resolution Lejeune et al. atmosphere models. These spectra are complemented by NLTE atmosphere models for hot stars that have an important impact in the stellar cluster's ionizing spectra: O, B and WR stellar spectra at the early ages, and spectra of post-AGB stars and planetary nebulae, at intermediate and old ages. At young ages, our models compare well with other existing models but we find that, the inclusion of the nebular continuum, not considered in several other models, reddens significantly the integrated colours of very young stellar populations. This is consistent with the results of spectral synthesis codes particularly devised for the study of starburst galaxies. At intermediate and old ages, the agreement with literature model is good and, in particular, we reproduce well the observed colours of star clusters in LMC. Given the ability to produce good integrated spectra from the far-UV to the infrared at any age, we consider that our models are particularly suited for the study of high redshift galaxies. These models are available on the web site {http://www.fractal-es.com/SEDmod.htm} and also through the Virtual Observatory Tools on the PopStar server.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
