Local Group距离的聚类：发表偏倚还是相关测量？II。M31及以上
Clustering of Local Group distances: publication bias or correlated measurements? II. M31 and beyond
摘要：
河外距离测量的准确性最终取决于对本地体积中星系距离的可靠，高精度的确定。在详细研究了大麦云（LMC）已发表的距离测定结果中可能存在的发表偏差之后，我们将我们感兴趣的距离范围扩展到包括M31和M33以及它们的一些著名矮星系同伴的已发表距离模量。我们的目标是达成共识的最好的，最均匀的，内部最一致的一套本星系群距离模数采用未来的，更普遍的使用的基础上最大的一套距离测定个别本星系群星系的日期。基于对主要恒星星族示踪剂的仔细统计加权组合（造父变星、天琴座RR变星和红巨星分支尖端的星等），我们得出了一个推荐的距离模数M31的$(m-M)_0^{\rm M31} = 24.46 \pm 0.10$等-采用我们的校准LMC距离模数$(m-M)_0^{\rm LMC} = 18.50$等-和一个完全内部一致的基准距离设置的关键星系在本地体积，使我们能够建立一个强大的和公正的，近场河外距离阶梯。
英文摘要：
The accuracy of extragalactic distance measurements ultimately depends on robust, high-precision determinations of the distances to the galaxies in the local volume. Following our detailed study addressing possible publication bias in the published distance determinations to the Large Magellanic Cloud (LMC), here we extend our distance range of interest to include published distance moduli to M31 and M33, as well as to a number of their well-known dwarf galaxy companions. We aim at reaching consensus on the best, most homogeneous, and internally most consistent set of Local Group distance moduli to adopt for future, more general use based on the largest set of distance determinations to individual Local Group galaxies available to date. Based on a careful, statistically weighted combination of the main stellar population tracers (Cepheids, RR Lyrae variables, and the magnitude of the tip of the red-giant branch), we derive a recommended distance modulus to M31 of $(m-M)_0^{\rm M31} = 24.46 \pm 0.10$ mag---adopting as our calibration an LMC distance modulus of $(m-M)_0^{\rm LMC} = 18.50$ mag---and a fully internally consistent set of benchmark distances to key galaxies in the local volume, enabling us to establish a robust and unbiased, near-field extragalactic distance ladder.
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。
