mapsims Documentation

mapsims is a Python 3 package to produce map based simulations for the Simons Observatory or other CMB experiments.

It creates simulated maps in HEALPix and CAR pixelization based on:

• Foreground models included in PySM
• Custom foregrounds models from the so_pysm_models package
• Precomputed Cosmic Microwave Background simulations
• Noise simulations based on expected performance and simulated hitmaps
• Effect of gaussian beam convolution

Contents:

• Requirements and installation
  • Requirements
  • Installation
  • Development installation
• Usage
  • Configuration file
  • Simulate other instruments
  • mapsims_run
  • MapSims object
  • Python classes
• Summary of Models
  • Model templates
  • Noise power spectra and hitmaps
  • Cosmic Microwave Background simulations
  • Available Cosmic Microwave Background simulations

Reference/API

mapsims Package

Functions

from_config(config_file[, override])
get_default_so_resolution(ch[, field])	Load the default Simons Observatory resolution
parse_channels([filter, instrument_parameters])	Create a list of Channel objects from a HDF5 and an optional filter
test(**kwargs)	Run the tests for the package.

Classes

Channel(tag, telescope, band, tube, beam, …)	Base class of a channel
MapSim(channels[, nside, num, nsplits, …])	Run map based simulations
SONoiseSimulator([nside, shape, wcs, …])	Simulate noise maps for Simons Observatory
SOPrecomputedCMB(num[, nside, shape, wcs, …])	Return a CMB map from stored alm’s.
SOStandalonePrecomputedCMB(num[, nside, …])	Equivalent of SOPrecomputedCMB to be executed outside of PySM.
UnsupportedPythonError

Class Inheritance Diagram