Today I went through, with Megan Bedell (Flatiron), the paper we code-name EPRV, which is about the precision with which you can measure a (change in a) radial velocity using spectroscopy. One of the points we discussed is how the results depend on stellar temperature, spectrograph resolution, and wavelength coverage. There is no simple expression of course, because stars vary in such complicated ways with temperature, and the line lists are immense. So we end up having methods that are useful, but not simple back-of-envelope anything. Another point we discussed is that the assumption that the star doesn't vary is a very wrong assumption, and the whole point of the whole literature these days! We care about this point and want to address it in the next work we do here. But how to discuss future directions in present paper? I don't like promising things.
We also discussed our writing styles, which are hella different. I think that's good in a collaboration, of course!
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