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

1989; IOP Publishing; Volume: 341; Linguagem: Inglês

10.1086/167480

1538-4357

N. Vittorio, P. de Bernardis, S. Masi, R. Scaramella,

Geophysics and Gravity Measurements

view Abstract Citations (16) References (3) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Data Analysis and Monte Carlo Simulation of a Cosmic Background Radiation Anisotropy Experiment Vittorio, Nicola ; de Bernardis, Paolo ; Masi, Silvia ; Scaramella, Roberto Abstract 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. Publication: The Astrophysical Journal Pub Date: June 1989 DOI: 10.1086/167480 Bibcode: 1989ApJ...341..163V Keywords: Background Radiation; Balloon-Borne Instruments; Cosmic Noise; Maximum Likelihood Estimates; Monte Carlo Method; Correlation; Cosmic Background Explorer Satellite; Random Noise; Simulation; Astrophysics; COSMIC BACKGROUND RADIATION full text sources ADS |