手法を比較

	運動学的距離	SEDフィッティング
分野	天文学	天文学
系統	Process / pipeline	Process / pipeline
提唱年	1957	2003
提唱者	Bert Westerhout	Gustavo Bruzual
種類	Kinematic measurement method	Analysis and modeling method
原典	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.	Bruzual, G., & Charlot, S. (2003). Stellar population synthesis at arbitrary metallicity with the Bruzual & Charlot models. Monthly Notices of the Royal Astronomical Society, 344(3), 1000-1028.
別名	Galactic Kinematic Distances, Rotation-Curve Distance, Kinematic Parallax	SED Analysis, Spectral Energy Distribution Method, Photometric Redshift
関連	3	3
概要	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.	Spectral Energy Distribution (SED) fitting is the technique of comparing observed photometric measurements of galaxies across many wavelengths against theoretical predictions from stellar population synthesis models. By fitting models to observations, astronomers estimate galaxy properties including redshift, mass, age, star formation rate, and dust content without requiring expensive spectroscopic observations.