CosmoMC: light element abundance datasets
Posted: February 15 2017
Hi,
I'm interested in including measurements of deuterium / helium3 abundances in a fit. In batch2/abundances.ini it says
What exactly is the issue for the Cooke2013 deuterium constraint? Is the comment saying that the conversion from input obh2 / nnu etc params to a predicted D/H is not accurate enough given the Cooke2013 error?
For helium is there any similar issue? Or can I replace Izotov with other Yp constraints without worrying about this?
Thanks a lot
I'm interested in including measurements of deuterium / helium3 abundances in a fit. In batch2/abundances.ini it says
Code: Select all
abundance_dataset[Izotov]= %DATASETDIR%Yp_Izotov2014.dataset
#Do not include Cooke, current AlterBBN grid is not accurate enough (rate issues etc)
#abundance_dataset[Cooke]= %DATASETDIR%D_Cooke2013.dataset
For helium is there any similar issue? Or can I replace Izotov with other Yp constraints without worrying about this?
Thanks a lot