COLines

class so_pysm_models.COLines(target_nside, output_units, has_polarization=True, line='10', include_high_galactic_latitude_clouds=False, polarization_fraction=0.001, theta_high_galactic_latitude_deg=20.0, random_seed=1234567, verbose=False, run_mcmole3d=False, map_dist=None, coord='C')

Bases: Model

Class defining attributes for CO line emission. CO templates are extracted from Type 1 CO Planck maps. See further details in https://www.aanda.org/articles/aa/abs/2014/11/aa21553-13/aa21553-13.html

Parameters

target_nsideint

HEALPix NSIDE of the output maps

output_unitsstr

unit string as defined by pysm.convert_units, e.g. uK_RJ, K_CMB

has_polarizationbool

whether or not to simulate also polarization maps

linestring

CO rotational transitions. Accepted values : 10, 21, 32

polarization_fraction: float

polarisation fraction for polarised CO emission.

include_high_galactic_latitude_clouds: bool

If True it includes a simulation from MCMole3D to include high Galactic Latitude clouds. (See more details at http://giuspugl.github.io/mcmole/index.html)

run_mcmole3d: bool

If True it simulates HGL cluds by running MCMole3D, otherwise it coadds a map of HGL emission.

random_seed: int

set random seed for mcmole3d simulations.

theta_high_galactic_latitude_degfloat

Angle in degree to identify High Galactic Latitude clouds (i.e. clouds whose latitude b is |b|> theta_high_galactic_latitude_deg).

map_distmpi4py communicator

Read inputs across a MPI communicator, see pysm.read_map

Methods Summary

signal()	Simulate CO signal
simulate_high_galactic_latitude_CO()	Coadd High Galactic Latitude CO emission, simulated with MCMole3D.
simulate_polarized_emission(I_map)	Add polarized emission by means of: * an overall constant polarization fraction, * a depolarization map to mimick the line of sigth depolarization effect at low Galactic latitudes * a polarization angle map coming from a dust template (we exploit the observed correlation between polarized dust and molecular emission in star forming regions).

Methods Documentation

signal()

Simulate CO signal

simulate_high_galactic_latitude_CO()

Coadd High Galactic Latitude CO emission, simulated with MCMole3D.

simulate_polarized_emission(I_map)

Add polarized emission by means of: * an overall constant polarization fraction, * a depolarization map to mimick the line of sigth depolarization effect at low Galactic latitudes * a polarization angle map coming from a dust template (we exploit the observed correlation between polarized dust and molecular emission in star forming regions).