Skip to content

Latest commit

 

History

History
64 lines (39 loc) · 3.42 KB

File metadata and controls

64 lines (39 loc) · 3.42 KB

High resolution foregrounds with spectral index not varying spatially

Tag: mbs-s0002-20190325

Release date 25 March 2019

These simulations are in Galactic coordinates

The last version of this file is available on Github. The same folder contains all the configuration files used and the scripts to create SLURM jobs.

Input components

Each component is saved separately, all maps are in uK_CMB, IQU, single precision (float32)

Dust, synchrotron, free-free and anomalous microwave emission using the "0" models, i.e. SO_d0, SO_s0, SO_f0, and SO_a0, see more details in in the documentation.

These maps are full-sky, you can get the noise maps from the 201901_gaussian_fg_lensed_cmb_realistic_noise simulations to add noise and apply the cut from the scanning strategy. Another option, if you are interested only in the sky cut, is to use the SONoiseSimulator class from mapsims, select nside and scanning_strategy and access the hitmap attribute.

Available maps

HEALPix maps at high resolution (nside 4096) and low resolution (nside 512), these models are deterministic, so we have a set for each resolution for all channels.

Reference frame for the maps is Galactic. Bandpass for each channel is a delta function centered at the reference frequency. Beams as defined in the SO_Noise_Calculator released in October 2018.

Location at NERSC:

/project/projectdirs/sobs/v4_sims/mbs/201903_highres_foregrounds

The naming convention is:

{output_nside}/{content}/{num:04d}/simonsobs_{content}_uKCMB_{telescope}{band:03d}_nside{nside}_{num:04d}.fits"

where:

  • content is in [cmb, synchtrotron, freefree, ame]
  • num is 0
  • telescope is sa or la
  • band is the channel frequency in GHz

Backed up to tape in ~zonca/sobs/mbs/201903_highres_foregrounds.

Issues or feedback

In case of any problem with the maps or the documentation or request more/different runs, open an issue on the map_based_simulations repo

Plots

See the plot_maps.ipynb notebook in the folder, executed notebooks:

Software