Sun Symbol with LaTeXStrings

Specific Domains Visualization
1

Hello!

In the past, I’ve used LaTeXStrings to label plot axis with solar units, like the solar luminosity on the y-axis of the plot below, with “\astrosun”. It seems that neither “\astrosun” nor “\odot” are recognized now? I get “undefined symbol” for both.

Is there a good way to make the sun symbol? I would rather not use “_{sun}” because it seems unprofessional.

Thanks!

1Msun_evolution_MESA_ed
1Msun_evolution_MESA_ed1650×1275 146 KB

2

What plotting package/julia version are you using?
With Plots.jl using the PyPlot backend on Julia 1.0 I can’t use \astrosun inside a LaTeXString but I can use \odot or the tab-completed unicode characters for \astrosun or \odot:

using Plots, LaTeXStrings
pyplot()
plot(rand(10), rand(10), ylabel = L"log_{10} L_{\odot} L_☉ L_⊙")

fig

Might be a topic for Visualization

3

Thanks @benelsen!

I’m using Plots with the GR backend on Julia 1.0. Does the LaTeXStrings package only work with certain backends?

4

Yes, GR doesn’t currently play nicely with LaTeX, so you have to use another backend. Related issue here: Consistent LaTeX support using the gr() backend to Plots

5

PGFPlotsX example (just grabbed numbers from Wikipedia, may not make sense):

using PGFPlotsX

luminosity = [500000, 20000, 800, 80, 20, 6, 2.5, 1.26, 1, 0.79,
              0.40, 0.16, 0.063, 0.0079, 0.0008]
temperature = [38000, 30000, 16400, 10800, 8620, 7240, 6540,
               5920, 5780, 5610, 5240, 4410, 3920, 3120, 2660]
push!(PGFPlotsX.CUSTOM_PREAMBLE, raw"\usepackage{wasysym}") # for \astrosun

@pgf Axis({ xlabel = raw"Temperature [$\times 10^3 K$]",
            ylabel = raw"$\log_{10}$ Luminosity [$L_{\astrosun}$]"},
          Plot(Table(temperature / 1000, log10.(luminosity))))

plot

6

Thanks @nilshg! I hope that this issue will be fixed soon.

Thanks @Tamas_Papp! I haven’t used PGFPlotsX before, but will try it. I’ve previously used GR because it’s fast