[x] Clarify use of the term Teff-- distinguish between surface and total effective temperatures
This term has a very specific astronomical meaning- the temperature of a blackbody that has the same luminosity and size as the star you are observing. You are using it to mean the black body equivalent temperature of a patch of surface- ie the temperature of a black body that would have the same integrated emergent surface brightness. I think you need a modifier when using it to mean this so that the two things are kept separately. This is particularly confusing because you also talk about the Teff of entire stars in your discussion section.
[x] Starspot geometry: limb darkening and projection effects matter for photometric colors
Given the size of the photometric variation, it is likely that the hot surface exists in a finite number of large pieces, not many small pieces. With its small fill factor and large pieces, the variations in the mean projection angle start to become important- some of what you see in the photometry is due to the angle relative to the line of sight not variations in the fraction of warm stuff you see. You might want to think about this and either mention it in the discussion or dismiss it.
[x] More panels of cool surface in Figure 5
... if you are right and 80% of the surface is covered with 2700 K material, there ought to be a physical observable in the spectra! Look at the models and try to identify some lines that only appear below 3000K and then go look for them in your observed spectrum. If they aren’t there at the predicted level, you have a problem. If they are, you have some real validation for your approach.
[x] Explain jargon and make sure tables are linked
I don’t see any references to Figures 4 and 5 in the text. Also, your paper should be readable by a reasonably but not perfectly informed audience. What the hell is a violin plot? If you don’t explain, at least give a reference.
gully
commented
8 years ago
paraphrased