Astronomy and Astrophysics – Astronomy
Scientific paper
Aug 1976
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976apj...207..685a&link_type=abstract
Astrophysical Journal, vol. 207, Aug. 1, 1976, pt. 1, p. 685-692. Research supported by the Consiglio Nazionale delle Ricerche.
Astronomy and Astrophysics
Astronomy
43
Astronomical Models, Black Body Radiation, Cosmology, Microwave Emission, Radio Sources (Astronomy), Extraterrestrial Radiation, Perturbation Theory, Radiative Transfer, Space Density, Universe
Scientific paper
Temperature variations induced in the cosmic microwave background by fluctuations in the cosmological metric are studied in the framework of perturbed Robertson-Walker models. Sachs and Wolfe's (1967) formulas are generalized to include the elliptic as well as the hyperbolic model. The case of density perturbations is discussed in detail, and an explicit formula is found for the corresponding temperature variations in a universe with an arbitrary density parameter.
Anile Marcello A.
Motta Sara
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