期刊
ASTROPHYSICAL JOURNAL
卷 560, 期 1, 页码 L15-L17出版社
UNIV CHICAGO PRESS
DOI: 10.1086/324311
关键词
cosmology : observations; distance scale; galaxies : distances and redshifts; gravitational lensing
Apparent magnitudes are important for high-precision cosmology. It is generally accepted that weak gravitational lensing does not affect the relationship between apparent magnitude and redshift. By considering metric perturbations, it is shown that objects observed in an inhomogeneous universe have, on average, higher apparent magnitudes than those observed at the same redshift in a homogeneous universe.
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