COBE 1 FIRAS Data
نویسندگان
چکیده
We have reened the analysis of the data from the FIRAS (Far InfraRed Absolute Spectrophotometer) on board the COBE (COsmic Background Explorer). The FIRAS measures the diierence between the cosmic microwave background and a precise blackbody spectrum. We nd new tighter upper limits on general deviations from a blackbody spectrum. The RMS deviations are less than 50 parts per million of the peak of the CMBR. For the Comptonization and chemical potential we nd jyj <15 10 ?6 and jj <9 10 ?5 (95% CL). There are also reenements in the absolute temperature, 2.728 0.004 K (95% CL), and dipole direction, mK (95% CL). All of these results agree with our previous publications.
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