Cosmological parameter values from WMAP-9

Jenny Wagner
  • 27 Mar

Hi!

as it is written on the page:
https://www.illustris-project.org/data/downloads/Illustris-3/
Illustris-3 is based on the cosmology as inferred from WMAP-9. Yet, looking into their corresponding paper:
https://iopscience.iop.org/article/10.1088/0067-0049/208/2/19/pdf
Table 4, the Hubble constant does not match the one on the Illustris-3 page above. Looking into Table 3, it seems that the values are rather WMAP-7. So which WMAP DR was used or did you choose the cosmological parameters just similarly but not exactly the same?

Best wishes,
Jenny

Dylan Nelson
  • 29 Mar

I see a note that original Illustris used values taken from Komatsu et al. 2011 (Table 1, v2), specifically "TT+BAO+H0". Note that "v2" refers to the arxiv version of this paper.

Although, I don't see exactly these values.

I think you are right and the best would be to interpret the statement "... parameters are consistent with the latest Wilkinson Microwave Anisotropy Probe (WMAP)-9 measurements (Hinshaw et al. 2013)." in that sense, i.e. consistent with. Figuring out exactly where they came from is probably difficult at this point.

Jenny Wagner
  • 29 Mar

Okay, I see...thanks a lot for the details!

  • Page 1 of 1