Frederic V. "Rick" Hessman
hessman at Astro.physik.Uni-Goettingen.DE
Tue Nov 8 01:28:59 PST 2005
>> Present Suggested new
>> E | phot.fluxDens | phot.flux.fluxDens or:
>> E | phot.fluxDens.sb | phot.flux.fluxDens.sb or:
> I agree that the second choices phot.flux.density.* are better.
> (Pierre - I don't think losing the fluxDens atom is a problem.)
Don't want to step on any radio astronomer's toes, but flux density
is flux. Yes, I know, it's monochromatic flux per unit frequency,
but where's the distinction between bolometric flux, monochromatic
flux per unit frequency, and monochromatic flux per unit wavelength?
Do we also then have to support the use of candela's, lux's, and the
lot - also physical (even SI!) terms for the same things? How about
(see, e.g., Mihalas):
phot.flux generic net rate of radiant
energy flow per unit area and time
phot.flux.freq monochromatic flux per unit
frequency, flux density
phot.flux.wave monochromatic flux per unit wavelength
phot.flux.bol bolometric flux
phot.flux.Eddington Eddington flux = flux / 4PI
I was going to suggest adding phot.flux.astr (that terrible factor
of PI or /1PI, depending upon how you look at it!), but I won't......
>>> Q | phys.massToLight | phys.mass.light
> I don't like this, since it's not a mass, it's a ratio.
> It's really talking about the composition of the physical
> environment (how much baryons, how much photons, etc.)
> Maybe phys.composition.massLight (or phys.abund.massLight)
I prefer phys.composition.massLightRatio
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