Science Data Challenge 3

SDC3b power spectrum inputs

The first SDC3b inputs are sets of cylindrical Epoch of Reionization (EoR) power spectra from an SKA-Low simulated observation. Three sets are currently envisaged:

Foreground-free datasets

Two sets containing only the EoR signal, instrumental noise for a 100h observation and a low-level of instrumental systematics, but no foreground residuals. The two sets differ in the EoR realisation, EoR astrophysical parameters, and EoR simulation code used. Additionally, the noise in two cases is an independent realisation. These two sets are identified by the dataset ID “PS1” and “PS2”. 

Foreground-contaminated dataset

A further dataset, generated with one of the EoR modelling codes used above,  contains a small contribution from residual foreground contamination (as detailed in section 2.2) and noise corresponding to 1000h observation. This dataset is identified with the ID “PS3”. 

SDC3b imaging inputs

The imaging dataset, with dataset ID "IM1", is the observed cube corresponding to PS3. As such it contains EoR, residual foreground contamination, and noise corresponding to 1000 h observation. It covers the full frequency range from 151 MHz to 196 MHz.

A document detailing the full description of the dataset can be found here.

PS1 and PS2 dataset and ancillary are available here

Noise cubes consistent with PS1 and PS2 are available here

PS3 and IM1 and ancillary data are available here

The script used to produce the power spectra for PS1, PS2, PS3 are available here