Relation between logzsol of fsps.StellarPopulation() and log(Z) of isochrone file
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Description
Hi,
How does the input of metallicity ( logzsol ) work.
When I give
sps = fsps.StellarPopulation(zcontinuous=1,logzsol=-0.4)
iso = sps.isochrones()
In the output, I get
age log(Z) mini mact logl logt logg phase composition log(weight) log(mdot) mags
5.5000 -2.0969 0.150000010 0.150000000 -2.4525 3.5402 NaN 0.0000 0.0000 -0.1873 -99.0000...
In input, I provided logzsol = -0.4, but in the output I get log(Z) = -2.0969. How logzsol and log(Z) are related?
I think it is a very silly question, but I am confused. I would be very grateful if anyone can help me with this.
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Research direction
Start with the fsps.StellarPopulation(logzsol=...) and sps.isochrones() entry points shown in the report, then inspect the isochrone output columns and metallicity definitions. Confirm how logzsol relates to the reported log(Z), using the provided example. The issue is done when the discrepancy and expected values are explained clearly.
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- python
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- documentation
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