CMBMap¶

class
pysm3.
CMBMap
(nside, map_IQU=None, map_I=None, map_Q=None, map_U=None, map_dist=None)[source] [edit on github]¶ Bases:
pysm3.Model
 Parameters
 mpi_comm: object
MPI communicator object (optional, default=None).
 nside: int
Resolution parameter at which this model is to be calculated.
 smoothing_lmaxint
\(\ell_{max}\) for the smoothing step, by default \(2*N_{side}\)
Methods Summary
get_emission
(freqs[, weights])This function evaluates the component model at a either a single frequency, an array of frequencies, or over a bandpass.
Methods Documentation

get_emission
(freqs: Unit(‘GHz’), weights=None)[source] [edit on github]¶ This function evaluates the component model at a either a single frequency, an array of frequencies, or over a bandpass.
 Parameters
 freqs: scalar or array astropy.units.Quantity
Frequency at which the model should be evaluated, in a frequency which can be converted to GHz using astropy.units. If an array of frequencies is provided, integrate using trapz with a equal weighting, i.e. simulate a tophat bandpass.
 weights: np.array, optional
Array of weights describing the frequency response of the instrument, i.e. the bandpass. Weights are normalized and applied in Jy/sr.
 Returns
 outputastropy.units.Quantity
Simulated map at the given frequency or integrated over the given bandpass. The shape of the output is (3,npix) for polarized components, (1,npix) for temperatureonly components. Output is in
uK_RJ
.