手法を比較

	重力マイクロレンズ	運動学的距離
分野	天文学	天文学
系統	Process / pipeline	Process / pipeline
提唱年	1986	1957
提唱者	Bohdan Paczynski	Bert Westerhout
種類	Observational detection method	Kinematic measurement method
原典	Paczynski, B. (1986). Gravitational microlensing by the galactic halo. Astrophysical Journal, 304, 1-5.	Reid, M. J., et al. (2014). Trigonometric parallaxes of high mass star forming regions: the structure and kinematics of the Milky Way. Astrophysical Journal, 783(2), 130.
別名	Microlensing, Gravitational Lensing Method	Galactic Kinematic Distances, Rotation-Curve Distance, Kinematic Parallax
関連	3	3
概要	Gravitational microlensing is an observational technique that exploits Einstein's prediction that massive objects bend light. When a star or planet passes in front of a distant star from our perspective, its gravity acts as a lens, magnifying and distorting the background star's light. First proposed by Bohdan Paczynski in 1986, this method has discovered hundreds of exoplanets and provides unique sensitivity to low-mass planets and dark matter.	Kinematic distance is a method for estimating distances to objects in the Milky Way using their observed radial velocities and the known rotation curve of the Galaxy. Developed in the 1950s by Bert Westerhout and others, this technique enables distance determination to distant molecular clouds and masers without trigonometric parallax or individual object luminosities.