Python V

Coble et al. use Q band (centered on 40 GHz) data from the ground-based Python V experiment at the South Pole to constrain CMBR anisotropy.

The window functions were provided by K. Coble. The first column in the window function file is $\ell$, which runs from 2 to 350. The next eight columns are the Python V zero-lag $W_\ell$'s for modulations 1 to 8.

Table: Python V zero-lag Window Function Parameters

Modulation	$\ell_{e^{-0.5}}$	$\ell_{\rm e}$	$\ell_{\rm m}$	$\ell_{e^{-0.5}}$	$\sqrt{I(W_\ell)}$
1	28	49.6	42	60	1.24
2	48	73.5	71	100	1.05
3	81	108.4	104	131	0.669
4	113	140.5	135	161	0.445
5	145	171.7	166	192	0.297
6	176	202.7	198	223	0.195
7	208	233.5	230	253	0.125
8	239	264.0	260	284	0.0771

The quoted bandtemperature values are computed for a flat bandpower spectrum. They are from Coble et al., with ($+15$%, $-12$%) added in quadrature to the statistical 1 $\sigma$ error bars to account for the 1 $\sigma$ calibration uncertainty. Cross-modulation correlations have not been accounted for.

Fig.: Python V zero-lag window functions. (Postscript version here.)

REFERENCES

Link to the experiment webpage.

K. Coble, et al., ``Anisotropy in the Cosmic Microwave Background at Degree Angular Scales: Python V Results", Astrophys. J. Lett. 519, L5 (1999).