bpt_prob¶
- edge_pydb.conversion.bpt_prob(n2ha_u, o3hb_u, bpt_type, grid_size=5)[source]¶
Calculate the probability that a measurement with uncertainty is in a particular region of the BPT diagram, as specified by the parameter bpt_type. This is done by constructing a grid and measuring the normalized Gaussian area within the chosen BPT region.
- Parameters:
- n2ha_uufloat
log10([NII]/Halpha) and uncertainty
- o3hb_uufloat
log10([OIII]/Hbeta) and uncertainty
- bpt_typefloat
BPT type to measure prob for, -1=SF, 0=intermediate, 1=LINER, 2=Seyfert
- grid_sizefloat
The number of grid points placed between +/- one sigma of the mean
- Returns:
- probability that measurement is in the specified region