Mera v1.8.2
Patch release: two bug fixes, no change to the API.
- RT photon densities were wrong by the factor c̃/unit_v: RAMSES-RT stores the photon density as c̃·N (c̃ = rt_c_frac·c, in code units), and Mera read it as N. The size of the error depends on the run: 3.07x too high for a run in kpc and Myr with rt_c_frac = 0.01, 3066x for a run with unit_v = 1 km/s, and too low where c̃ < unit_v. Affects :Np_cgs, :photon_energy_density, :rad_energy_density, :Gamma_HI(), :photoheating_HI(), :photoionizations and :ionization_balance; re-run these rather than rescaling. :Np, :Np_total, :Fmag(_cgs) and :reducedflux were always correct. The reduced light speed is now read per level (variable speed of light).
- Off-axis :vlos and :σlos now work with weighting=:sph and :voronoi.