Simulating the Legacy Survey of Space and Time Stellar Content with TRILEGAL
Simulating the Legacy Survey of Space and Time Stellar Content with TRILEGAL
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DOI：
10.3847/1538-4365/ac7be6
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发表时间：
2022-08
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通讯作者：
Piero Dal Tio;G. Pastorelli;A. Mazzi;M. Trabucchi;G. Costa;A. Jacques;A. Pieres;L. Girardi;Yang Chen;K. Olsen;M. Jurić;Ž. Ivezić;P. Yoachim;W. Clarkson;P. Marigo;T. Rodrigues;S. Zaggia;M. Barbieri;Y. Momany;A. Bressan;R. Nikutta;L. D. da Costa
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作者：
Piero Dal Tio;G. Pastorelli;A. Mazzi;M. Trabucchi;G. Costa;A. Jacques;A. Pieres;L. Girardi;Yang Chen;K. Olsen;M. Jurić;Ž. Ivezić;P. Yoachim;W. Clarkson;P. Marigo;T. Rodrigues;S. Zaggia;M. Barbieri;Y. Momany;A. Bressan;R. Nikutta;L. D. da Costa
我们描述了一个大型模拟的恒星观察的维拉C。Rubin Observatory Legacy Survey of Space and Time（鲁宾天文台时空遗产巡天）模拟是基于TRILEGAL代码，它诉诸于大型数据库的恒星演化轨迹，合成光谱，脉动模型，添加到简单的处方的恒星密度和星星形成历史的主要结构的银河系，通过人口合成的方法产生模拟恒星样本。麦哲伦星云的主体也包括在内。一个完整的模拟提供了单星，下降到r = 27.5等深度的coadded宽快深调查图像。第二个模拟提供了一小部分的二进制文件，包括相互作用的，推导出与TRILEGAL的BinaPSE模块。我们说明了主要的属性和数字来自这些模拟，包括：比较与真实的星星计数;造父变星，长周期变量和食双星的预期数量;拥挤的限制作为一个功能的看到和过滤器;恒星与星系的比率。完整的星表可以通过NOIRLab天文数据实验室访问，而恒星密度图则被纳入LSST度量分析框架。
We describe a large simulation of the stars to be observed by the Vera C. Rubin Observatory Legacy Survey of Space and Time (LSST). The simulation is based on the TRILEGAL code, which resorts to large databases of stellar evolutionary tracks, synthetic spectra, and pulsation models, added to simple prescriptions for the stellar density and star formation histories of the main structures of the Galaxy, to generate mock stellar samples through a population synthesis approach. The main bodies of the Magellanic Clouds are also included. A complete simulation is provided for single stars, down to the r = 27.5 mag depth of the coadded Wide–Fast–Deep survey images. A second simulation is provided for a fraction of the binaries, including the interacting ones, as derived with the BinaPSE module of TRILEGAL. We illustrate the main properties and numbers derived from these simulations, including: comparisons with real star counts; the expected numbers of Cepheids, long-period variables, and eclipsing binaries; the crowding limits as a function of seeing and filter; the star-to-galaxy ratios. Complete catalogs are accessible through the NOIRLab Astro Data Lab, while the stellar density maps are incorporated in the LSST metrics analysis framework.