Gaia astrometry disfavors a binary origin for long secondary periods: data products
收藏资源简介：
This dataset contains the data products accompanying the paper “Gaia astrometry disfavors a binary origin for long secondary periods” by Cheyanne Shariat, Kareem El-Badry, Morgan MacLeod, and Emily Leiner (2026). The release includes the Gaia and ASAS-SN long-secondary-period (LSP) sample catalogs, the ellipsoidal-variable control samples, cached gaiamock prediction tables used for the RUWE forward modeling, the machine-readable Gaia BP/G/RP SED-fit table for the nearby sample (radii and Teff), and the full Gaia Focused Product Release time-series tables used in the RV and photometric analysis. Main files:epoch_RVs_LSPs.csv: full Gaia FPR multi-epoch radial-velocity table used for the LSP RV analysis.LSP_phot_timeseries.csv: full Gaia photometric time-series table for the LSP sample. gaiafpr_lpv_parent_topquality_dustcorr.fits: dust-corrected Gaia FPR LPV parent sample used for sample construction.tlsp_merged_gaia_edenhofer_corr.fits: merged Gaia LSP sample used in the main analysis.tab_merged_asasn_edenhofer_corr.fits: merged ASAS-SN LSP sample used for comparison tests.tab_ell.fits: ellipsoidal-variable control sample used in the RUWE comparison.asasn_ellip_gaia.fits: Gaia-matched ASAS-SN ellipsoidal-variable control sample.gaia_100pc_cleaned.parquet: cleaned local Gaia reference sample used for CMD comparisons. gaia_lsp_variant_predictions_1p5kpc.fits: cached Gaia DR3 RUWE forward-model predictions for the model-variation tests.asas_lsp_variant_predictions_1p5kpc.fits: cached ASAS-SN DR3 RUWE forward-model predictions for the model-variation tests.gaia_lsp_dr4_predictions_1p5kpc.fits: cached Gaia DR4-quality RUWE forward-model predictions.asas_lsp_dr4_predictions_1p5kpc.fits: cached ASAS-SN DR4-quality RUWE forward-model predictions. gaia_lsp_750pc_sed_fit_machine_readable.csv: machine-readable table of Gaia-only SED-fit temperatures and radii for the nearby sample. The code used to read these files and reproduce the paper figures is available at:https://github.com/cheyanneshariat/LSPs
本数据集配套于Cheyanne Shariat、Kareem El-Badry、Morgan MacLeod与Emily Leiner于2026年发表的论文《Gaia天体测量学不支持长次级周期的双星起源》（Gaia astrometry disfavors a binary origin for long secondary periods），包含该论文配套的数据产品。 本次发布内容包括：盖亚（Gaia）与ASAS-SN长次级周期（long-secondary-period, LSP）样本星表、椭球变星对照样本、用于归一化单位权重误差（Renormalized Unit Weight Error, RUWE）正向建模的缓存盖亚模拟（gaiamock）预测表、用于近距样本的盖亚BP/G/RP光谱能量分布（spectral energy distribution, SED）拟合机器可读表（包含半径与有效温度Teff），以及用于径向速度（radial velocity, RV）与测光分析的完整盖亚聚焦产品发布（Gaia Focused Product Release, FPR）时序表。 主要数据文件说明如下： - epoch_RVs_LSPs.csv：用于LSP径向速度分析的完整盖亚FPR多历元径向速度表 - LSP_phot_timeseries.csv：针对LSP样本的完整盖亚测光时序表 - gaiafpr_lpv_parent_topquality_dustcorr.fits：用于样本构建的经尘埃校正的高质量盖亚FPR长周期变星母样本 - tlsp_merged_gaia_edenhofer_corr.fits：主分析所用的合并盖亚LSP样本 - tab_merged_asasn_edenhofer_corr.fits：对比测试所用的合并ASAS-SN LSP样本 - tab_ell.fits：RUWE对比分析所用的椭球变星对照样本 - asasn_ellip_gaia.fits：与盖亚星表匹配的ASAS-SN椭球变星对照样本 - gaia_100pc_cleaned.parquet：用于颜色-星等图（Color-Magnitude Diagram, CMD）对比的经清洗的本地盖亚参考样本 - gaia_lsp_variant_predictions_1p5kpc.fits：用于模型变体测试的缓存盖亚DR3 RUWE正向建模预测结果 - asas_lsp_variant_predictions_1p5kpc.fits：用于模型变体测试的缓存ASAS-SN DR3 RUWE正向建模预测结果 - gaia_lsp_dr4_predictions_1p5kpc.fits：缓存的盖亚DR4精度RUWE正向建模预测结果 - asas_lsp_dr4_predictions_1p5kpc.fits：缓存的ASAS-SN DR4精度RUWE正向建模预测结果 - gaia_lsp_750pc_sed_fit_machine_readable.csv：针对近距样本的仅盖亚SED拟合温度与半径的机器可读表 用于读取上述文件并复现论文图表的代码已公开于：https://github.com/cheyanneshariat/LSPs
