Blazars are characterized by largely aperiodic variability on timescales ranging from minutes to decades across the electromagnetic spectrum. The TESS (Transiting Exoplanet Survey Satellite) mission provides continuous sampling of blazar variability on timescales ranging from tens of minutes to 27 days for a single sector observation. Proper removal of the background, thermal ramping, and onboard systematic effects are crucial to the extraction of a reliable blazar light curve. Multiple publicly available procedures have been created to correct for these effects. Using ground based observations from the Zwicky Transit Facility (ZTF) and the Asteroid Terrestrial-impact Last Alert System (ATLAS) as ``ground truth'' observations, we compare 6 different methods (Regression, Cotrending Basis Vectors (CBV), Pixel Level Decorrelation (PLD), eleanor, quaver, and simple differential photometry (SDP)) to each other, and to our ``ground truth'' observations, to identify which methods properly correct light curves of a sample of 11 bright blazars, including the suspected neutrino source TXS~0506+056. In addition to comparing the resulting light curves, we compare the slopes of the power spectral densities, perform least-square fitting to simultaneous ZTF data, and quantify other statistical qualities generated from the light curves of each method. We find that only three of the six methods compared (Simple Differential Photometry, eleanor, and quaver) produce TESS light curves consistent with the ground-based ZTF and ATLAS observations.
Revisiting neutrino event epochs for the blazar PKS 0735+178 with TESS
Indian Institute of Astrophysics, Bangalore（班加罗尔印度天体物理研究所）；Aryabhatta Research Institute of Observational Sciences（阿亚巴塔观测科学研究所）；Central University of Kashmir（克什米尔中央大学）
Detection of Quasiperiodic Oscillations in the Blazar PKS 0735+178 with TESS
Indian Institute of Astrophysics（印度天体物理研究所）；Aryabhatta Research Institute of Observational Sciences (ARIES)（阿亚巴塔观测科学研究所）；Department of Physics, The College of New Jersey（新泽西学院物理系）；Tsung-Dao Lee Institute, Shanghai Jiao Tong University（上海交通大学李政道研究所）
Application of time-series analysis methods to a multiple-sector TESS observations: the case of the radio-loud blazar 3C 371
Xinjiang Astronomical Observatory, CAS（中国科学院新疆天文台）；George P. and Cynthia Woods Mitchell Institute for Fundamental Physics and Astronomy, Texas A&M University（德克萨斯农工大学乔治·P·辛西娅·伍兹基础物理与天文学研究所）；Department of Physics, The College of New Jersey（新泽西学院物理系）；Department of Physics, Villanova University（维拉诺瓦大学物理系）；California Institute of Technology（加州理工学院）；State Key Laboratory of Radio Astronomy and Technology（射电天文与技术国家重点实验室）；Xinjiang Key Laboratory of Radio Astrophysics（新疆射电天体物理学重点实验室）
Probable Quasi-Periodic Oscillations in the {\tt TESS} observations of blazars in the Swift X-ray Survey
Xinjiang Astronomical Observatory, CAS（中国科学院新疆天文台）；George P. and Cynthia Woods Mitchell Institute for Fundamental Physics and Astronomy, Texas A&M University（德克萨斯农工大学乔治·P和辛西娅·伍兹基础物理与天文学研究所）；Department of Physics, The College of New Jersey（新泽西学院物理系）
Variability Study and Searching for QPOs with day-like periods in the blazar S5 0716+714 with TESS
Aryabhatta Research Institute of Observational Sciences (ARIES)（阿亚巴塔观测科学研究所）；Indian Institute of Astrophysics (IIA)（印度天体物理研究所）；The College of New Jersey（新泽西学院）
