Using a mapping from dark matter halos to galaxy properties based on hydrodynamical simulations, we explore the impact of galaxy properties on the void size function and the void-galaxy correlation function. We replicate the properties of galaxies from Illustris on MassiveNus halos, to perform both luminosity and star formation rate cuts on MassiveNus halos. We compare the impact of such cuts on voids properties with respect to cuts on halo mass (as usually performed on halo catalogs driven from N-body simulations). We find that void catalogs built from luminosity-selected galaxies and halos are consistent within errors, while void catalogs built from star formation rate selected galaxies differ from void catalogs built on halos. We investigate the reason for this difference. Our work suggests that voids built on galaxy catalogs (selected through luminosity cut) can be reliably studied by using halos in dark matter simulations.

中文翻译：

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星系属性如何影响虚空统计？

使用基于流体动力学模拟的从暗物质晕到星系特性的映射，我们探索了星系特性对空隙大小函数和空隙-星系相关函数的影响。我们在 MassiveNus 晕上复制了来自 Illustris 的星系的属性，以对 MassiveNus 晕进行光度和恒星形成率的降低。我们比较了这种切割对空隙属性的影响与切割晕质量的影响（通常在由 N 体模拟驱动的晕目录上执行）。我们发现由光度选择的星系和晕建立的空目录在误差范围内是一致的，而由恒星形成率选择的星系建立的空目录不同于建立在光晕上的空目录。我们调查了这种差异的原因。