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Hannah Wakeford
@stellarplanet.bsky.social
Exoplanet scientist. Science communicator. Author. Podcaster. Miniature painter. Wife. Cat mum.
397 followers115 following64 posts
HWstellarplanet.bsky.social

We took 14 #exoplanet@distantworlds.space ) to ask the question: "what information do I gain as I add in more optical data?" to demonstrate the need for @NASAHubble UV/optical measurements

14 planetary transmission (absorption) spectra with three model fits. Orange - just considering data longword of 1.1 microns. Blue considering  data long of 0.6 microns. Purple considering data long of 0.3 microns. With added data tighter constraints on the model can be seen.
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HWstellarplanet.bsky.social

To assess changes to the measured parameters from one model fit to the next containing more data we compute the change in Information Content - a metric to define the increase in information you have with the new model. Higher number == more information gained with new model

Information content change for 13/14 planets in the study. Showing a gain in information when shorter wavelength data is included in the fit. The bottom panel shows the cloud parameters broken down into the four specific components.
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HW
Hannah Wakeford
@stellarplanet.bsky.social
Exoplanet scientist. Science communicator. Author. Podcaster. Miniature painter. Wife. Cat mum.
397 followers115 following64 posts