DM_annihilation_efficiency parameter not working

[ash2223]

Hello!

I'm trying to adjust the DM_annihilation_efficiency parameter in v3.1.0 of class, solely by changing the value of this parameter in the explanatory.ini file from 0 to 1e-7. This causes an error:

I've tried using v3.2.0 and v3.2.3 of class instead, to no avail. Wondering if anyone else is having this issue? Any help would be greatly appreciated.

-Adam

[jcolinhill]

Perhaps it is a units issue? Does v2.9 yield sensible output?

[ash2223]

Hi Colin!! Actually you’re right—it does seem that the parameter needs to be scaled down by 9e16 (c^2). I became confused by the input instructions though because the max for this parameter is set to be 1e-4, when really it should be around 1e-20 as it crashes for anything higher. Thank you so much!! (I’ll be starting these chains now haha)

-Adam

[jcolinhill]

sounds good -- perhaps this is a place where the CLASS example.ini could use an update/clarification!