skymodel.simulate_cib¶
- skymodel.simulate_cib(freq, nside_out=4096, lmax=None, beam_FWHM=None, template='WebSky', unit='cmb')¶
Computes an all-sky CIB map at a given frequency and nside based on .
- Parameters
- freq: float or float array
Frequency of the output map in Hz. If freq=-1 return a frequency independant CIB.
- nside_out: float, optional
Healpix nside parameter of the output map. Must be a valid value for nside. Default: 4096
- lmax: float, optional
Maximum value of the multipolemoment at which the atmospheric power spectrum wil be computed. Default: 3*nside_out-1
- beam_FWHM: bool, optional
If set, the output will be convolved with a gaussian. The FWHM of the Gaussian in units of arcmin is given by the provided value. Default: None
- template: bool, optional
Determines the all-sky foregrounds templates to be used to build the sky model. If ‘Sehgal’ is chosen, simulations by Sehgal et al. (2010) are used. If ‘SO’ is chosen, the Simons Observatory sky model provided by Colin Hill and based on the simulations by Sehgal et al. (2010) is used. If ‘WebSky’ is chosen, the used templates will be based on the WebSky Extragalactic CMB Mocks provided by CITA. If ‘SO_reproduced’ is chosen, the SO sky model is reproduced directly from the Sehgal et al. (2010) data. Default: ‘WebSky’
- unit: bool, optional
Determines the units of the output map. The available units are ‘mjy’ –> MJy/sr (specific intensity), ‘cmb’ –> K_CMB (thermodynamic temperature), and ‘rj’ –> K_RJ (brightness temperature). Default: ‘cmb’.
- Returns
- cib: float array
Healpix all-sky map of the CIB mission that the specified frequency.