Events Calendar
Illuminating the radius valley with TESS and CHEOPS
Thursday March 31, 2022
| 2:00 pm
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Presenter: | Dominic Oddo (UNM) |
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| Series: | Center for Astrophysics Research and Technologies Seminar Series | |
| Abstract: |
The radius valley, which is a deficiency in the frequency of planets found from 1.5 to 2.0 Earth radii, is a well-characterized feature in the radius distribution of known exoplanets. However, the physical cause of this valley is hotly debated between two major theories, known as photoevaporation and core-powered mass loss. In this talk, I will discuss the radius valley and the theories which may explain it by presenting the analysis of a series of small planets bordering the valley. In doing so, I will compare observations of these systems between NASA's TESS and ESA's CHEOPS missions. I also explore possible reasons as to why observations from these telescopes may give different results for physical parameters, and whether different fitting algorithms may - at least sometimes - be causing these differences.
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| Host: | Gregory Taylor | |
| Location: | PAIS-3205, PAIS | |
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