MCMC samples for X-ray spectra fits summarised in the paper "A strangely light neutron star"

Posterior samples for NS mass and radius described based on fitting of XMM-Newton and Suzaku spectra of the CCO in HESS J1731-347 and described in the paper the paper "A strangely light neutron star" (DOI: 10.21203/rs.3.rs-1509469/v1). Two files uploaded contain posterior samples based based a) on fitting X-ray data alone using single temperature carbon atmosphere model and Gaia parallax priors (xray_only_carbatm.txt) b) on fitting the same X-ray data but including also all additional priors described in the main text and full priors on distance rather than inverted parallax value (full_priors_carbatm.txt). Note that initial version contained wrong file uploaded by error, so the correct file to use in this case is full_priors_carbatm_corr.txt. We urge, however, to use a) as a baseline, i.e. as input for incorporating of other constraints for two reasons: first, the procedure of incorporating other constraints adopted by us and you may be different, and second, this file contains relatively small number of samples as it was mainly meant as illustration putting our results in context of other constraints and to give an idea of impact which our measurement has on EOS selection for a particular family of EOSs, so the result would be different if other set of EOSs is considered. in addition a file with updated weights for EOSs used by Dietrich et al 2021 (2020Sci...370.1450D, available on https://github.com/diettim/NMMA) which take into the account constrains from X-ray spectral fitting presented in our work for the CCO and constrains based on modeling of the 4U 1702-429 bursts reported by Nattila et al 2017 (2017A&A...608A..31N) are included in file chiralEFT_MTOV_NICER_GW170817_AT2017gfo_cco_weights.txt. This file is based on and has the same syntax as file chiralEFT_MTOV_NICER_GW170817_AT2017gfo_weighting.dat provided by Dietrich et al 2021 available on https://github.com/diettim/NMMA along with the corresponding tabulated EOS files.本数据集包含HESS J1731-347区域内致密中心天体（Compact Central Object, CCO）的中子星质量与半径后验样本，相关样本基于对该天体的XMM-牛顿（XMM-Newton）与朱雀（Suzaku）X射线望远镜光谱数据的拟合得到，相关研究发表于论文《一颗异常轻盈的中子星》（DOI: 10.21203/rs.3.rs-1509469/v1）。 本次共上传两个数据文件，二者的后验样本推导依据不同： a) `xray_only_carbatm.txt`：仅使用单温度碳大气模型拟合X射线数据，并结合盖亚（Gaia）视差先验得到的后验样本； b) `full_priors_carbatm.txt`：使用相同X射线数据拟合，但纳入正文所述全部额外先验，且采用距离完整先验而非视差反演值得到的后验样本。 需注意，初始版本因操作失误上传了错误文件，本批次可用的正确文件为`full_priors_carbatm_corr.txt`。但我们推荐以a)文件作为基准参照，用于整合其他约束条件，原因有二：其一，我方与您方采用的其他约束整合流程可能存在差异；其二，该文件的样本量相对较小，最初仅用于将本研究结果置于其他约束的语境中进行展示，并直观体现本次测量对特定物态方程（Equation of State, EOS）家族的物态方程选择的影响，若采用其他物态方程集合，所得结果会有所不同。 此外，本次还上传了针对Dietrich等人2021年研究（2020Sci...370.1450D，可于https://github.com/diettim/NMMA获取）中所用物态方程的更新权重文件`chiralEFT_MTOV_NICER_GW170817_AT2017gfo_cco_weights.txt`。该文件纳入了本研究针对该致密中心天体的X射线光谱拟合约束，以及Nattila等人2017年（2017A&A...608A..31N）报道的基于4U 1702-429 X射线暴建模得到的约束。该文件的语法与Dietrich等人2021年发布的`chiralEFT_MTOV_NICER_GW170817_AT2017gfo_weighting.dat`完全一致，后者可于https://github.com/diettim/NMMA获取，配套包含对应制表物态方程文件。