ball1.gif MAT 1998

Miller et al. use D band (centered on 144 GHz) data from the ground-based MAT (Mobile Anisotropy Telescope) 1998 experiment on Cerro Toco, Chile, to constrain CMBR anisotropy.

The window function file were provided by E. Torbet. The first column is $\ell$, which runs from 2 to 1300 (although one $W_\ell$ is not computed to $\ell =
1300$). The next five columns are the combined D1 + D2 zero-lag $W_\ell$'s for groups 6, 7, ..., 10. Each group is a combination of various $n$-point chops of D1 and D2 data; see Miller et al. for details.


Table: MAT 1998 D1 + D2 zero-lag Window Function Parameters
  $\ell_{e^{-0.5}}$ $\ell_{\rm e}$ $\ell_{\rm m}$ $\ell_{e^{-0.5}}$ $\sqrt{I(W_\ell)}$
Group 6 96 128.8 122 153 0.998
Group 7 117 155.0 148 183 0.998
Group 8 185 248.4 260 302 0.999
Group 9 267 318.6 304 347 0.999
Group 10 334 415.0 365 446 0.999

The quoted bandtemperature values are computed for a flat bandpower spectrum. They are from Miller et al. with 8% added in quadrature to their statistical 1 $\sigma$ error bars to account for the 1 $\sigma$ calibration uncertainty.

Fig.: MAT 1998 zero-lag window functions. (Postscript version here.) win_MAT98.gif

REFERENCES

ball22.gifball23.gifLinks to the experiment webpages.

A.D. Miller, et al., ``A Measurement of the Angular Power Spectrum of the Cosmic Microwave Background from $l$ = 100 to 400", Astrophys. J. Lett. 524, L1 (1999).


Bharat Ratra and Tarun Souradeep
Department of Physics, Kansas State University
Last updated: 2000-08-31