I presented the deep dives on takeaways 1-4 from #22. Caroline had some great guidance for simplifying these deep dives into the paper:
The TESS lightcurve demo appears useful, so it'd be useful to show the lightcurves and report the interpretation--- HAT-P-67 is in the 87th percentile of peak-to-valley modulation, but it's more similar to the quiet sample (just a bit more modulation than most) than the active sample (3-5x) more modulation. This place appears consistent with the interpretation of SPI without demanding it.
Describe (just in words) the non-detection of H$\alpha$ and Ca II H&K variability.
Leave out the comparison to the low-metallicity/evolved stars, it's a bit muddled and ultimately a distraction.
Caroline mentioned the possibility of getting 2D Coude spectra this month on her next observing run. I think we agreed it's diminishing returns given that the HIRES spectra show no H$\alpha$ variability.
I was coincidentally reminded of a few gotchas during the meeting. Suvrath had asked whether the phasing of the HPF acquisitions could alias a stellar signal onto a planetary phase. Exploring this idea would require knowledge of the stellar rotation period, or a grid search of a period that could yield a smooth modulation. We could take the TESS lightcurve modulation as Prot (~5.x days) and re-phase the HPF spectra on that period. My expectation is that the signal we see in the 2D scans would get washed out, and not re-inforced.
I presented the deep dives on takeaways 1-4 from #22. Caroline had some great guidance for simplifying these deep dives into the paper:
Caroline mentioned the possibility of getting 2D Coude spectra this month on her next observing run. I think we agreed it's diminishing returns given that the HIRES spectra show no H$\alpha$ variability.
I was coincidentally reminded of a few gotchas during the meeting. Suvrath had asked whether the phasing of the HPF acquisitions could alias a stellar signal onto a planetary phase. Exploring this idea would require knowledge of the stellar rotation period, or a grid search of a period that could yield a smooth modulation. We could take the TESS lightcurve modulation as Prot (~5.x days) and re-phase the HPF spectra on that period. My expectation is that the signal we see in the 2D scans would get washed out, and not re-inforced.