Data analysis and Monte Carlo simulation of a cosmic background radiation anisotropy experiment

Journal Article · Thu Jun 01 00:00:00 EDT 1989 · Astrophysical Journal; (USA)

DOI:https://doi.org/10.1086/167480· OSTI ID:5510219

Vittorio, N; De Bernardis, P; Masi, S; Scaramella, R ^[1]

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1. L'Aquila Universita (Italy)

Data from an experiment by Davies et al. (1987), in which a temperature fluctuation of the microwave sky was detected, using the same method, but considering the temperature correlation functions predicted by gravitational instability scenarios. It is found that the Davies et al. data are consistent with either white noise or scale invariant primordial density fluctuations and that these are preferred among other scale-free spectra. However, the statistical significance of this result is low, as shown by Monte Carlo simulations of the microwave sky and of the specific experiment. 8 refs.

• OSTI ID: 5510219
• Journal Information: Astrophysical Journal; (USA), Vol. 341; ISSN 0004-637X
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BACKGROUND RADIATION
ANISOTROPY
CORRELATIONS
COSMIC RADIATION
MAXIMUM-LIKELIHOOD FIT
MONTE CARLO METHOD
NOISE
SATELLITES
SIMULATION
IONIZING RADIATIONS
NUMERICAL SOLUTION
RADIATIONS
640101* - Astrophysics & Cosmology- Cosmic Radiation