Hey guys, so I'm working on a project and was given some slightly vague instructions. I am supposed to be using a metagalactic ionizing radiation field value (Gamma) to find the ionization of Hydrogen as a function of density. I'm coming to you guys with a vague description because I'm hoping someone will have a sense of what is being looked for. I'm confused if I'm trying to find a rate of ionization, or a shear number of ionized particles? What I have that may be of use is the following density formula: n=ΓHI/α (1 - nHI/n)-2 nHI/n Once again, sorry if this is all vague. Feel free to ask questions and I'll try to answer!