# Empirical relation between O[III] and H$\alpha$ line fluxes

I have the H$$\alpha$$ line flux ($$L_{H\alpha}$$) of an extragalactic source. To calculate the bolometric luminosity, is there an empirical relation between $$L_{H\alpha}$$ and $$L_{O[III]}$$, akin to $$L_{O[III]} = xL_{H\alpha}$$? Thanks a lot!

• If this question is not appropriate for this forum, please suggest me a suitable one. Any help is really really appreciated! – lordparthurnaax Sep 7 at 5:16