Temperature Steps

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Temperature step can be defined by calculating the gradient of temperature anisotropies,

Figure 8. Definition of and fields.

where the x- and y- component of
are defined as follows

Figure 9. WMAP 1st-year W-band (94GHz) anisotropy map [5].


Figure 10. Temperature step field derived from the above anisotropy map. 64 pixel-demotion was performed in this calculation.

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