论文标题
分离的星系对目录中跨性别，互距和质量的统计去介绍
Statistical deprojection of intervelocities, interdistances and masses in the Isolated Galaxy Pair Catalog
论文作者
论文摘要
为了研究实际星系对的内部动力学，我们需要从其观察到的（投影）值和Kepler第三定律中的成对成员之间的真实3D（轨道）相互关系的概率分布函数（PDF）。我们的13114 Pairs \ cite {nottale2018a}的孤立星系对目录（IGPC）在这里用于这项研究。在\ cite {nottale2018b}中详细阐述的统计删除的算法应用于这些观察数据。我们为整个目录和几个选定的子样本提供了轨道速度PDF。将互距PDF进行了分析，并将其与半理论论点预期的分析概况进行了比较。 depRected Poighted轨道速度的PDF的特征是存在于$ \ \ \ \ \ \ \ \ \ 150美元左右的主要概率峰值，大约是IGPC子的所有子样本，以及UGC Pair catalog catalog \ cite \ cite {chamaraux2016}。相同的功率定律与指数$ \约-2 $在同一功率定律中描述了预测数据和deprojected数据的互相PDF。包括核心在内的整个分布都与国王配置文件相当安装。质量重投影产生$ m/l =（30 \ pm 5）$的质量/发光比在太阳能单元中。在相同的值中观察到轨道速度概率峰，约150 $ km/s，是主外部外球星速度峰，无论规模如何，它都指向开普勒结构的可能普遍性。 $ m/l $ $比率仅是发光物质的标准比率的5倍，这不需要这些系统中的非巴里型暗物质。
In order to study the internal dynamics of actual galaxy pairs, we need to derive the probability distribution function (PDF) of true 3D (orbital) intervelocities and interdistances between pair members from their observed (projected) values, and of the pair masses from Kepler's third law. Our Isolated Galaxy Pair Catalog (IGPC) of 13114 pairs \cite{Nottale2018a} is used here for this research. The algorithms of statistical deprojection elaborated in \cite{Nottale2018b} are applied to these observational data. We derive the orbital velocity PDFs for the whole catalog and for several selected subsamples. The interdistance PDF is deprojected and compared to analytical profiles which are expected from semi-theoretical arguments. The PDF of deprojected pair orbital velocities is characterized by the existence of a main probability peak around $\approx 150$ km.s$^{-1}$ for all subsamples of the IGPC as well as for the UGC pair catalog \cite{Chamaraux2016}. The interdistance PDFs of both the projected and deprojected data are described at large distances by the same power law with exponent $\approx -2$. The whole distributions, including their cores, are fairly fitted by King profiles. The mass deprojection yields a mass/luminosity ratio for the pairs of $M/L=(30 \pm 5)$ in Solar units. The orbital velocity probability peak is observed at the same value, $\approx 150$ km/s, as the main exoplanet velocity peak, which points toward a possible universality of Keplerian structures, whatever the scale. The pair $M/L$ ratio is just 5 times the standard ratio for luminous matter, which does not require the existence of non-baryonic dark matter in these systems.
