The Directly Imaged Exoplanet Host Star 51 Eridani is a Gamma Doradus Pulsator
@article{Sepulveda2022TheDI, title={The Directly Imaged Exoplanet Host Star 51 Eridani is a Gamma Doradus Pulsator}, author={Aldo G. Sepulveda and Daniel Huber and Zhoujian Zhang and Gang Li and Michael C. Liu and Timothy R. Bedding}, journal={The Astrophysical Journal}, year={2022}, volume={938} }
51 Eri is well known for hosting a directly imaged giant planet and for its membership to the β Pictoris moving group. Using 2 minute cadence photometry from the Transiting Exoplanet Survey Satellite (TESS), we detect multiperiodic variability in 51 Eri that is consistent with pulsations of Gamma Doradus (γ Dor) stars. We identify the most significant pulsation modes (with frequencies between ∼0.5 and 3.9 cycles day−1 and amplitudes ranging between ∼1 and 2 mmag) as dipole and quadrupole…
One Citation
20 s Cadence TESS Photometry of HR 8799
- Physics, GeologyResearch Notes of the AAS
- 2023
We analyzed 20 s cadence Transiting Exoplanet Survey Satellite time-series photometry of the exoplanet host star HR 8799 collected in Sector 56. The amplitude spectrum shows Gamma Doradus (γ Dor)…
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