Variability Census of Legacy Catalogs: New Pulsating Variables and Eclipsing Binaries

I present the preliminary results of a comprehensive variability census of the four legacy catalogs: BD (+CD+SD), HD, SAO, and PPM. This dedicated survey project aims to identify bright A-F type variable stars using high-precision space photometry from the Transiting Exoplanet Survey Satellite (TESS ) and Gaia. Phases I through V of this survey, encompassing analyses of 193,940 A-F stars selected from the aforementioned catalogs, have been completed. To date, the project has yielded a substantial number of new variable star discoveries, including: over 14,510 new δ Scuti stars, more than 18,382 new γ Doradus stars, and over 2,354 new eclipsing binary systems, with approximately 360 binaries exhibiting pulsations in the primary components. Furthermore, thousands of rotational variables and dozens of Heartbeat stars and RR Lyrae stars have been identified, demonstrating the power of this systematic approach in revealing the rich diversity of stellar variability. Due to potential blending and contamination in TESS photometry, the binarity of a few pulsating stars or those eclipsing binaries exhibiting superimposed intrinsic pulsations of δ Scuti and γ Doradus types should be rechecked. Follow-up studies of individual systems are necessary to resolve contamination issues and accurately identify the true source of variability. The full list of newly identified variable stars is presented in machine-readable format in the attached file `PPM_AFstars_NewVar_R5.csv', and an atlas of selected representative light curves is provided as a separate PDF. Citation: Zhou, Ai-Ying: 2023, Res. Notes AAS, Vol.7, 210 (I) Zhou, Ai-Ying: 2024, Res. Notes AAS, Vol.8, 81 (II) Zhou, Ai-Ying: 2024, Res. Notes AAS, Vol.8, 190 (III) Zhou, Ai-Ying: 2025, Res. Notes AAS, Vol.9, 56 (IV) Zhou, Ai-Ying: 2025, Res. Notes AAS, Vol.9, 1?? (V)本研究呈现了四大经典星表（波恩星表BD[含CD、SD子星表]、亨利·德雷伯星表HD、史密松天体物理台星表SAO及帕洛马-普林斯顿星表PPM）的全面变星普查初步结果。本专项巡天项目依托凌日系外行星巡天卫星（Transiting Exoplanet Survey Satellite, TESS）与盖亚（Gaia）的高精度空间测光数据，旨在筛选出明亮的A-F型变星。本巡天项目的第一至第五阶段已全部完成，涵盖了从上述星表中筛选出的193,940颗A-F型恒星的分析工作。截至目前，该项目已发现大量新变星，包括超过14,510颗新发现的盾牌座δ型变星（δ Scuti）、18,382颗新的剑鱼座γ型变星（γ Doradus），以及2,354颗新的食双星系统；其中约360个双星的主星存在脉动现象。此外，项目还发现了数千颗自转变星、数十颗心跳星（Heartbeat stars）与天琴座RR型变星（RR Lyrae stars），充分展现了本系统性巡天方法在揭示恒星脉动丰富多样性方面的卓越能力。由于凌日系外行星巡天卫星测光数据中可能存在混叠与污染问题，少数脉动变星或同时叠加盾牌座δ型与剑鱼座γ型本征脉动的食双星，其双星属性需要重新验证。需对单个天体系统开展后续研究，以解决污染问题并精准确定变星的真实脉动来源。 新发现变星的完整列表以机器可读格式收录于附件文件`PPM_AFstars_NewVar_R5.csv`中，精选的代表性光变曲线图集则以独立PDF文件形式提供。 引用格式： 周爱英. 2023. 《美国天文学会研究通讯》（Res. Notes AAS）, 7: 210（I） 周爱英. 2024. 《美国天文学会研究通讯》, 8: 81（II） 周爱英. 2024. 《美国天文学会研究通讯》, 8: 190（III） 周爱英. 2025. 《美国天文学会研究通讯》, 9: 56（IV） 周爱英. 2025. 《美国天文学会研究通讯》, 9: 1??（V）