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10 papers analyzed
These studies suggest that distances to stars and galaxies are measured using methods such as parallax, JAGB, red clump stars, eclipsing binaries, pixel color-magnitude diagrams, Cepheids, X-ray binaries, MegaMasers, and the SBF method.
19 papers analyzed
Measuring the distances to stars and galaxies is a fundamental task in astronomy, crucial for understanding the scale, structure, and evolution of the universe. Various methods have been developed to estimate these distances, each with its own advantages and limitations.
Parallax Method:
J-region Asymptotic Giant Branch (JAGB) Method:
Eclipsing Binaries:
Red Clump Stars:
Pixel Color-Magnitude Diagrams (pCMD):
Surface Brightness Fluctuation (SBF) Method:
Brightest Stars Method:
Astronomers employ a variety of methods to measure distances to stars and galaxies, each suited to different types of objects and distance ranges. Parallax measurements are fundamental for nearby stars, while methods like JAGB, eclipsing binaries, and red clump stars are effective for nearby galaxies. Techniques such as pCMD, SBF, and the brightest stars method extend distance measurements to more distant galaxies, providing a comprehensive toolkit for mapping the universe.
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