The Wiener-filtered COBE DMR Data and Predictions for the Tenerife Experiment
Abstract
We apply a Wiener filter to the two-year COBE Differential Microwave Radiometer (DMR) data. The resulting sky map has significantly reduced noise levels compared to the raw data: the most prominent hot and cold spots are significant at the 4 (7 level. Furthermore, the entire covariance matrix of the errors in the filtered sky map is known, and it is therefore possible to make constrained realizations of the microwave sky with the correct a posteriori probability distribution. The filtered DMR sky map is used to make predictions for the Tenerife experiment. Two prominent features are predicted in a region of the sky not yet analyzed by the Tenerife group. The presence of these features is a robust prediction of the standard cosmological paradigm; if these features are not observed, some of our fundamental assumptions must be incorrect.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- June 1996
- DOI:
- 10.1086/177294
- arXiv:
- arXiv:astro-ph/9509045
- Bibcode:
- 1996ApJ...464....1B
- Keywords:
-
- COSMOLOGY: COSMIC MICROWAVE BACKGROUND;
- METHODS: DATA ANALYSIS;
- METHODS: STATISTICAL;
- Astrophysics
- E-Print:
- 15 pages of uuencoded compressed PostScript. A PostScript file including figures is available at ftp://pac2.berkeley.edu/pub/bunn/wienerten/