timothydmorton / isochrones

Pythonic stellar model grid access; easy MCMC fitting of stellar properties
http://isochrones.readthedocs.org
MIT License
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Questions when checking solar mags. #191

Open pinsongzhao opened 6 months ago

pinsongzhao commented 6 months ago

Hi, I am new to stellar physics and isochrones, I am still testing here and trying to have a better understanding for this tool. I am using MIST to generate solar magnitudes in different filters, with an input params mass, age, feh = (1.00, 9.66, 0.0182) The input feh=0.0182 is set to get an output feh close to ~0. Here is my script. https://github.com/pinsongzhao/TestIsochrones/blob/main/CheckSolarMags.ipynb I am comparing the output magnitudes with Solar magnitudes listed in https://mips.as.arizona.edu/~cnaw/sun.html. The differences range from 0.04mag to >0.15mag when wavelength of filters goes from 4.44um to 0.435um. Given the model can not be perfectly match the Sun, is this differences in all filters expected? I just want to make sure I have not made any stupid mistakes when using Isochrones or mis-interpretate the output parameters from the code.

Thank you very much, Pinsong