Galactic Component Classification For the all-sky PLATO Input Catalog

PLATO Targets Classification This repository contains the full list of PLATO targets, classified into their Galactic Component membership. The basis for the catalogue is the all-sky PLATO input catalog (asPIC) by Montalto2021, crossmatched with Gaia DR3. Files There are four files included in this repository: targets_classified: Description: The entire sample, classified into thin disk, thick disk candidate, thick disk, halo candidate, and halo. Note : Classification is only performed if relative uncertainties no greater than 20% in the following columns: "ra", "dec", "pmra", "pmdec", "parallax", and "radial_velocity". For targets where this requirement is not fulfilled, the related columns are filled with NaN. Format: 2,675,538 rows, 61 columns LOPS2: Description: A subselection of targets_classified in the LOPS2 field. Galactic Coordinates: l=255.9375°, b=-24.62432° Additional Column: "n_cameras" specifying the number of PLATO cameras that will observe the target. Format: 169,438 rows, 62 columns LOPN1: Description: A subselection of targets_classified in the LOPN1 field. Galactic Coordinates: l=81.56250°, b=24.62432° Format: 173,735 rows, 62 columns special_target_list: Description: A selection of 47 targets, kinematically classified as halo stars, within the high-SNR P1 PLATO sample. Additional Column: "n_cameras" specifying the number of PLATO cameras that will observe the target, and "Field" specifying if target belongs to LOPS2 or LOPN1 field Format: 47 rows, 63 columns Classification Criteria We classify only those stars into Galactic components that have relatively certain kinematic parameters. Specifically, we require no more than 20% relative uncertainty in the following columns: "ra", "dec", "pmra", "pmdec", "parallax", "radial_velocity". This results in 2,283,538 out of the total 2,675,539 stars having a component classification. Analysis Conditions For the analysis in our paper, we applied the following additional conditions: Population.notnull() Stellar type = FGK Radius > 0 Mass > 0 Teff > 0 Logg.notnull() [Fe/H].notnull() Applying these conditions results in 1,830,288 entries remaining. Columns The columns in the dataset are as follows: Column Name Description gaiaID_DR2 Gaia DR2 ID (from asPIC catalog, Montalto2021) gaiaID_DR3 Gaia DR3 ID (matched to DR2 catalog, based on angular distance) parallax Parallax of target (mas), from Gaia DR3 e_parallax Error on parallax ra Right Ascension (deg) from Gaia DR3 e_ra Error on Right Ascension dec Declination (deg) from Gaia DR3 e_dec Error on declination pmra Proper motion in right ascension direction (mas/yr), from Gaia DR3 e_pmra Error on proper motion in right ascension direction pmdec Proper motion in declination direction (mas/yr), from Gaia DR3 e_pmdec Error on proper motion in declination direction radial_velocity Radial velocity (km/s), from Gaia DR3 e_radial_velocity Radial velocity error [alpha/Fe] Alpha elemental abundance from Gaia RV spectra, alphafe_gspspec in Gaia DR3 e_[alpha/Fe]_lower Lower error on alpha element abundance e_[alpha/Fe]_upper Upper error on alpha element abundance [Fe/H] Metallicity estimate, either from RVS spectra (mh_gsspec in Gaia DR3, with first 13 quality flags equal to 0, Recio-Blanco2023) or XGBOOST (Andrae2023) [Fe/H]_source Source of the metallicity estimate e_[Fe/H]_lower Lower error on the metallicity estimate (NaN in case of Andrae2023) e_[Fe/H]_upper Upper error on the metallicity estimate (NaN in case of Andrae2023) logg log g estimate, either from RVS spectra (logg_gsspec in Gaia DR3, with first 13 quality flags equal to 0, Recio-Blanco2023) or XGBOOST (Andrae2023) logg_source Source of the log g estimate e_logg_lower Lower error on the log g estimate (NaN in case of Andrae2023) e_logg_upper Upper error on the log g estimate (NaN in case of Andrae2023) [Fe/H]_apogee Metallicity estimate from APOGEE-DR17 e_[Fe/H]_apogee Error on APOGEE metallicity estimate [alpha/M]_apogee Alpha abundance estimate from APOGEE-DR17 e_[alpha/M]_apogee Error on APOGEE alpha estimate logg_apogee log g estimate from APOGEE-DR17 e_logg_apogee Error on APOGEE log g estimate [Fe/H]_galah Metallicity estimate from GALAH DR3 e_[Fe/H]_galah Error on GALAH metallicity [alpha/Fe]_galah Alpha abundance estimate from GALAH DR3 e_[alpha/Fe]_galah Error on GALAH alpha abundance logg_galah log g estimate from GALAH DR3 e_logg_galah Error on GALAH log g GLON Galactic longitude (deg) GLAT Galactic latitude (deg) U Heliocentric velocity in the direction of the Galactic center (km/s), calculated from ra, dec, parallax, pmra, pmdec, radial_velocity using galpy, only available if Population could be determined (see Classification Criteria) V Heliocentric velocity in the direction of the Galactic rotation (km/s), calculated from ra, dec, parallax, pmra, pmdec, radial_velocity using galpy, only available if Population could be determined (see Classification Criteria) W Heliocentric velocity in the direction of the North Galactic Pole (km/s), calculated from ra, dec, parallax, pmra, pmdec, radial_velocity using galpy, only available if Population could be determined (see Classification Criteria) UW Total non-circular velocity UW = sqrt(U^2 + W^2) (km/s), only available if Population could be determined (see Classification Criteria) R Distance from the Galactic center in the Galactic plane (kpc), only available if Population could be determined (see Classification Criteria) Z Distance from the Galactic plane (kpc), only available if Population could be determined (see Classification Criteria) gaiaV V-band magnitude (from asPIC catalog, Montalto2021) e_gaiaV Error on V-band magnitude Gmag Gaia G magnitude (from asPIC catalog, Montalto2021) e_Gmag Error on G magnitude Radius Radius of star (solar radii) (from asPIC catalog, Montalto2021) e_Radius Error on radius Mass Mass of star (solar masses) (from asPIC catalog, Montalto2021) e_Mass Error on mass Teff Effective temperature of star (K) (from asPIC catalog, Montalto2021) e_Teff Error on effective temperature Stellar Type Classification into M or FGK type, based on asPIC catalog (Montalto2021) u1 The first quadratic limb-darkening parameter, based on grid by Morello2022 u2 The second quadratic limb-darkening parameter, based on grid by Morello2022 TD/D Probability ratio thick disk/thin disk (see Section 2.2. in our paper), only available if Population could be determined (see Classification Criteria) TD/H Probability ratio thick disk/halo (see Section 2.2 in our paper), only available if Population could be determined (see Classification Criteria) Population Galactic component classification (Thin Disk, Thick Disk, Halo, Thick Disk Candidate, Halo Candidate), see paper for definitions, only available if Population could be determined (see Classification Criteria) n_cameras Number of PLATO cameras observing the target (Additional Column for LOPS2, LOPN1, and Special Target List) field Flag for LOPS2 or LOPN1 fields (Additional Column for Special Target List)# PLATO目标分类 本仓库收录了全部PLATO目标列表，并按其银河成分成员身份进行分类。本星表的基础为Montalto2021发布的全天空PLATO输入星表（asPIC），并与Gaia DR3完成交叉证认。 ## 文件 本仓库包含4个文件： ### targets_classified **描述**：完整样本，被划分为薄盘、厚盘候选体、厚盘、晕候选体与晕星。 **备注**：仅当以下列的相对不确定度不超过20%时，才会执行分类："ra"、"dec"、"pmra"、"pmdec"、"parallax"及"radial_velocity"。对于不满足该要求的目标，相关列将以NaN（非数值）填充。 **格式**：2,675,538行，61列 ### LOPS2 **描述**：targets_classified在LOPS2天区的子样本。 **银河坐标**：l=255.9375°，b=-24.62432° **额外列**："n_cameras"，用于指定观测该目标的PLATO相机数量。 **格式**：169,438行，62列 ### LOPN1 **描述**：targets_classified在LOPN1天区的子样本。 **银河坐标**：l=81.56250°，b=24.62432° **格式**：173,735行，62列 ### special_target_list **描述**：从高信噪比P1 PLATO样本中筛选出的47个目标，其运动学分类为晕星。 **额外列**："n_cameras"用于指定观测该目标的PLATO相机数量，"Field"用于指定目标属于LOPS2还是LOPN1天区。 **格式**：47行，63列 ## 分类标准 我们仅将运动学参数较为确定的恒星归类至银河成分中。具体要求为以下列的相对不确定度不超过20%："ra"、"dec"、"pmra"、"pmdec"、"parallax"、"radial_velocity"。最终，在总计2,675,539颗恒星中，有2,283,538颗获得了银河成分分类。 ## 分析条件 在我们论文的分析工作中，我们施加了以下额外筛选条件： 1. `Population.notnull()` 2. 恒星类型为FGK型 3. 半径>0 4. 质量>0 5. 有效温度（Teff）>0 6. `Logg.notnull()` 7. `[Fe/H].notnull()` 施加上述条件后，剩余1,830,288条有效数据。 ## 数据列 数据集各列说明如下： | 列名 | 描述 | |------|------| | gaiaID_DR2 | Gaia DR2星表ID（源自asPIC星表，Montalto2021） | | gaiaID_DR3 | Gaia DR3星表ID（通过角距离匹配至DR2星表） | | parallax | 目标视差（单位：mas），源自Gaia DR3 | | e_parallax | 视差误差 | | ra | 赤经（单位：°），源自Gaia DR3 | | e_ra | 赤经误差 | | dec | 赤纬（单位：°），源自Gaia DR3 | | e_dec | 赤纬误差 | | pmra | 赤经方向自行（单位：mas/yr），源自Gaia DR3 | | e_pmra | 赤经自行误差 | | pmdec | 赤纬方向自行（单位：mas/yr），源自Gaia DR3 | | e_pmdec | 赤纬自行误差 | | radial_velocity | 视向速度（单位：km/s），源自Gaia DR3 | | e_radial_velocity | 视向速度误差 | | [alpha/Fe] | α元素丰度比，源自Gaia RV光谱，对应Gaia DR3中的alphafe_gspspec | | e_[alpha/Fe]_lower | α元素丰度比的下限误差 | | e_[alpha/Fe]_upper | α元素丰度比的上限误差 | | [Fe/H] | 金属丰度估计值，可源自RVS光谱（Gaia DR3中的mh_gsspec，前13个质量标志位均为0，Recio-Blanco2023）或XGBOOST方法（Andrae2023） | | [Fe/H]_source | 金属丰度估计值的来源 | | e_[Fe/H]_lower | 金属丰度估计值的下限误差（Andrae2023方法结果中为NaN） | | e_[Fe/H]_upper | 金属丰度估计值的上限误差（Andrae2023方法结果中为NaN） | | logg | 表面重力对数估计值，可源自RVS光谱（Gaia DR3中的logg_gsspec，前13个质量标志位均为0，Recio-Blanco2023）或XGBOOST方法（Andrae2023） | | logg_source | 表面重力对数估计值的来源 | | e_logg_lower | 表面重力对数估计值的下限误差（Andrae2023方法结果中为NaN） | | e_logg_upper | 表面重力对数估计值的上限误差（Andrae2023方法结果中为NaN） | | [Fe/H]_apogee | 来自APOGEE-DR17的金属丰度估计值 | | e_[Fe/H]_apogee | APOGEE金属丰度估计值的误差 | | [alpha/M]_apogee | 来自APOGEE-DR17的α元素丰度估计值 | | e_[alpha/M]_apogee | APOGEEα元素丰度估计值的误差 | | logg_apogee | 来自APOGEE-DR17的表面重力对数估计值 | | e_logg_apogee | APOGEE表面重力对数估计值的误差 | | [Fe/H]_galah | 来自GALAH DR3的金属丰度估计值 | | e_[Fe/H]_galah | GALAH金属丰度估计值的误差 | | [alpha/Fe]_galah | 来自GALAH DR3的α元素丰度估计值 | | e_[alpha/Fe]_galah | GALAHα元素丰度估计值的误差 | | logg_galah | 来自GALAH DR3的表面重力对数估计值 | | e_logg_galah | GALAH表面重力对数估计值的误差 | | GLON | 银河经度（单位：°） | | GLAT | 银河纬度（单位：°） | | U | 指向银河中心方向的日心速度（单位：km/s），通过galpy基于ra、dec、视差、pmra、pmdec及视向速度计算得到，仅当可确定Population时可用（见分类标准） | | V | 指向银河自转方向的日心速度（单位：km/s），通过galpy基于ra、dec、视差、pmra、pmdec及视向速度计算得到，仅当可确定Population时可用（见分类标准） | | W | 指向北银河极方向的日心速度（单位：km/s），通过galpy基于ra、dec、视差、pmra、pmdec及视向速度计算得到，仅当可确定Population时可用（见分类标准） | | UW | 总非圆周速度，UW=√(U²+W²)（单位：km/s），仅当可确定Population时可用（见分类标准） | | R | 银河平面内距银河中心的距离（单位：kpc），仅当可确定Population时可用（见分类标准） | | Z | 距银河平面的距离（单位：kpc），仅当可确定Population时可用（见分类标准） | | gaiaV | V波段星等（源自asPIC星表，Montalto2021） | | e_gaiaV | V波段星等误差 | | Gmag | Gaia G波段星等（源自asPIC星表，Montalto2021） | | e_Gmag | G波段星等误差 | | Radius | 恒星半径（单位：太阳半径）（源自asPIC星表，Montalto2021） | | e_Radius | 恒星半径误差 | | Mass | 恒星质量（单位：太阳质量）（源自asPIC星表，Montalto2021） | | e_Mass | 恒星质量误差 | | Teff | 恒星有效温度（单位：K）（源自asPIC星表，Montalto2021） | | e_Teff | 有效温度误差 | | Stellar Type | 基于asPIC星表（Montalto2021）的恒星类型分类，分为M型或FGK型 | | u1 | 第一个二次临边昏暗参数，基于Morello2022的模型网格 | | u2 | 第二个二次临边昏暗参数，基于Morello2022的模型网格 | | TD/D | 厚盘/薄盘概率比（详见本文第2.2节），仅当可确定Population时可用（见分类标准） | | TD/H | 厚盘/晕概率比（详见本文第2.2节），仅当可确定Population时可用（见分类标准） | | Population | 银河成分分类（薄盘、厚盘、晕、厚盘候选体、晕候选体），详见论文定义，仅当可确定Population时可用（见分类标准） | | n_cameras | 观测目标的PLATO相机数量（LOPS2、LOPN1及特殊目标列表的额外列） | | field | LOPS2或LOPN1天区标记（特殊目标列表的额外列）