sphtfunc
– Spherical harmonic transforms¶
From map to spherical harmonics¶
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Computes the power spectrum of a Healpix map, or the cross-spectrum between two maps if map2 is given. |
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Computes the alm of a Healpix map. |
From spherical harmonics to map¶
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Create a map(s) from cl(s). |
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Computes a Healpix map given the alm. |
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Computes a Healpix map and its first derivatives given the alm. |
Spherical harmonic transform tools¶
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Smooth a map with a Gaussian symmetric beam. |
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Smooth alm with a Gaussian symmetric beam function. |
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Computes (cross-)spectra from alm(s). |
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Generate a set of alm given cl. |
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Multiply alm by a function of l. |
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Return the pixel window function for the given nside. |
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This class provides some static methods for alm index computation. |
Other tools¶
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Gaussian beam window function |
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Computes a transfer (or window) function b(l) in spherical harmonic space from its circular beam profile b(theta) in real space. |
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Computes a circular beam profile b(theta) in real space from its transfer (or window) function b(l) in spherical harmonic space. |