bpt_region

edge_pydb.conversion.bpt_region(n2ha, o3hb, good=True)[source]

Determine BPT classification based on [NII]/Ha and [OIII]/Hb. Does not impose a requirement on EW(Ha).

Parameters:
n2hanumpy.ndarray

log10([NII]/Halpha)

o3hbnumpy.ndarray

log10([OIII]/Hbeta)

goodboolean

mask to apply to output arrays

Returns:
boolean index arrays for SF, intermediate, LINER, and Seyfert.