论文标题
环境对星系螺旋臂，条，集中和淬火的影响
The Effect of Environment on Galaxy Spiral Arms, Bars, Concentration, and Quenching
论文作者
论文摘要
对于附近螺旋和S0星系的4378样品，Yu and Ho（2020）使用了Sloan数字天空调查图像的傅立叶分析，以表明螺旋臂的强度以及手臂的俯仰角与中央浓度成反比。在当前的研究中，我们搜索具有环境和特定恒星形成速率（SSFR）的YU和HO（2020）螺旋组参数的趋势。在比较具有相似浓度的星系时，与田间星系相比，我们发现簇星系中的臂强度或螺旋星系的螺距角度没有显着差异。当考虑到浓度的差异时，与场螺旋相比，簇螺旋的参数F3没有显着差异，其中F3是归一化的M = 3傅立叶振幅。固定浓度时，臂强度和螺距角都与SSFR相关，但F3不相关。这些关系支持戴维斯等人的建议。 （2015年）的螺旋结构“基本平面”，涉及螺距角，隆起恒星质量和气体表面密度。我们根据星系中的螺旋臂产生和淬火的理论讨论了这些结果。为了与基于Galaxy动物园的早期研究进行比较，我们探讨了Yu和Ho（2020）参数与通过Galaxy Zoo测得的相似参数（即F3 vs.手臂数量，螺距角度与绕组参数与浓度与浓度与凸起类别）的相似参数。
For a sample of 4378 nearby spiral and S0 galaxies, Yu and Ho (2020) used Fourier analysis of Sloan Digital Sky Survey images to show that the strengths of the spiral arms and the pitch angles of the arms are inversely correlated with central concentration. In the current study, we search for trends in the Yu and Ho (2020) spiral arm parameters with environment and specific star formation rate (sSFR). When comparing galaxies with similar concentrations, we do not find a significant difference in the arm strengths or pitch angles of spiral galaxies in clusters compared to field galaxies. When differences in concentration are taken into account, we also find no significant difference in the parameter f3 for cluster spirals compared to field spirals, where f3 is the normalized m = 3 Fourier amplitude. When concentration is held fixed, both arm strength and pitch angle are correlated with sSFR, but f3 is not. These relations support the suggestion by Davis et al. (2015) of a `fundamental plane' of spiral structure involving pitch angle, bulge stellar mass, and gas surface density. We discuss these results in terms of theories of spiral arm production and quenching in galaxies. To aid comparison with earlier studies based on Galaxy Zoo, we explore how the Yu and Ho (2020) parameters relate to similar parameters measured by Galaxy Zoo (i.e., f3 vs. number of arms, pitch angle vs. winding parameter, and concentration vs. bulge class).
