So sánh phương pháp

	Phân tích đường cong ánh sáng	Phương pháp vận tốc xuyên tâm
Lĩnh vực	Vật lý ứng dụng	Vật lý ứng dụng
Họ	Process / pipeline	Process / pipeline
Năm ra đời	1880	1844
Người khởi xướng	Edward Pickering	Friedrich Wilhelm Bessel
Loại	Signal processing and astronomical observation technique	Spectroscopic measurement technique
Công trình gốc	Ricker, G. R., et al. (2015). TESS: Transiting Exoplanet Survey Satellite. Journal of Astronomical Telescopes, Instruments, and Systems, 1(1), 014003.	Mayor, M., & Queloz, D. (1995). A Jupiter-mass companion to a solar-type star. Nature, 378(6555), 355-359.
Tên gọi khác	photometric analysis, transit photometry, eclipsing binary analysis	Doppler method, spectroscopic velocity measurement
Liên quan	3	3
Tóm tắt	Light curve analysis is the study of the brightness variation of a celestial object over time, used to detect and characterize exoplanets, eclipsing binaries, and variable stars. When a planet transits in front of its host star, the star's brightness dips slightly. By analyzing these photometric signatures, astronomers can determine planetary radii, orbital periods, and atmospheric properties. This method has discovered thousands of exoplanets and revealed the structure of stellar systems.	The radial velocity method detects exoplanets by measuring the Doppler shift of a star's spectral lines caused by gravitational tugging from orbiting planets. When a planet orbits a star, the star wobbles slightly toward and away from Earth, creating periodic shifts in its light spectrum. First proposed by Friedrich Wilhelm Bessel in the 19th century and successfully applied to exoplanet detection in 1995, this method has discovered nearly half of all known exoplanets.