New paper on arxiv! My colleague Juliana García-Mejía analyzed data from several facilities searching for a transit of the long-period (542 d) super puff HIP 41378 f. The full transit is 19 hours long, but we detected it using a few "snapshots" from multiple observatories.
New paper on arxiv! My colleague Juliana García-Mejía analyzed data from several facilities searching for a transit of the long-period (542 d) super puff HIP 41378 f. The full transit is 19 hours long, but we detected it using a few "snapshots" from multiple observatories.
Just found out starry (starry.readthedocs.io/en/v1.1.0/) lets you project any image you want onto a sphere, so here's the 40-degree spherical harmonic expansion of Jupiter. 🪐🔭
June 17, 2025 at 3:32 PM
Just found out starry (starry.readthedocs.io/en/v1.1.0/) lets you project any image you want onto a sphere, so here's the 40-degree spherical harmonic expansion of Jupiter. 🪐🔭
We simultaneously modeled several transit observations, finding that the rotational light curve AND the changes in the transit shapes can be described by a planet transiting a large polar spot.
June 16, 2025 at 1:23 PM
We simultaneously modeled several transit observations, finding that the rotational light curve AND the changes in the transit shapes can be described by a planet transiting a large polar spot.
TOI-3884 b is a planet around an M dwarf whose transits show persistent spot crossings. We show that the star's rotational and spot-crossing variations can be modeled with a misaligned planet transiting a large polar spot (confirming last week's results from Mori et al.) arxiv.org/abs/2506.11998
June 16, 2025 at 1:17 PM
TOI-3884 b is a planet around an M dwarf whose transits show persistent spot crossings. We show that the star's rotational and spot-crossing variations can be modeled with a misaligned planet transiting a large polar spot (confirming last week's results from Mori et al.) arxiv.org/abs/2506.11998
Now published in AJ! We used Tierras to measure the 23-day rotation period of a K dwarf and found that the orbit of its transiting planet is aligned with the star's spin axis. Stay tuned as we measure true obliquities for a larger sample!
Now published in AJ! We used Tierras to measure the 23-day rotation period of a K dwarf and found that the orbit of its transiting planet is aligned with the star's spin axis. Stay tuned as we measure true obliquities for a larger sample!
It's been a couple of years since I've updated this plot, which ranks all facilities that are credited with an exoplanet discovery on the NASA Exoplanet Archive! Since, then, TESS has moved into 3rd all-time (or 2nd, depending on how you want to count Kepler/K2). 🔭
September 7, 2023 at 5:38 PM
It's been a couple of years since I've updated this plot, which ranks all facilities that are credited with an exoplanet discovery on the NASA Exoplanet Archive! Since, then, TESS has moved into 3rd all-time (or 2nd, depending on how you want to count Kepler/K2). 🔭