Additional Doppler Monitoring Corroborates HAT-P-11 c as a Planet
Fuente:
arXiv
Saved in:
| Main Authors: | , , , , , , , , , , , , , , , , , |
|---|---|
| Format: | Preprint |
| Published: |
2024
|
| Subjects: | |
| Online Access: | |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866916325699354624 |
|---|---|
| author | Yee, Samuel W. Petigura, Erik A. Isaacson, Howard Howard, Andrew W. Blunt, Sarah Dalba, Paul A. Dai, Fei Fulton, Benjamin J. Giacalone, Steven Kane, Stephen R. Kosiarek, Molly Mocnik, Teo Rice, Malena Rubenzahl, Ryan Saunders, Nicholas Tyler, Dakotah Weiss, Lauren M. Zhang, Jingwen |
| author_facet | Yee, Samuel W. Petigura, Erik A. Isaacson, Howard Howard, Andrew W. Blunt, Sarah Dalba, Paul A. Dai, Fei Fulton, Benjamin J. Giacalone, Steven Kane, Stephen R. Kosiarek, Molly Mocnik, Teo Rice, Malena Rubenzahl, Ryan Saunders, Nicholas Tyler, Dakotah Weiss, Lauren M. Zhang, Jingwen |
| contents | In 2010, Bakos and collaborators discovered a Neptune-sized planet transiting the K-dwarf HAT-P-11 every five days. Later in 2018, Yee and collaborators reported an additional Jovian-mass companion on a nine year orbit based on a decade of Doppler monitoring. The eccentric outer giant HAT-P-11c may be responsible for the peculiar polar orbit of the inner planet HAT-P-11b. However, Basilicata et al. (2024) recently suggested that the HAT-P-11c Doppler signal could be caused by stellar activity. In this research note, we extend the Yee et al. (2018) Doppler time series by six years. The combined dataset spanning 17 years covers nearly two orbits of the outer planet. Importantly, we observe two periastron passages of planet c and do not observe a coherent activity signature. Together with the previously reported astrometric acceleration of HAT-P-11 from Hipparcos and Gaia, we believe there is strong evidence for HAT-P-11c as a bona fide planet. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2407_11109 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Additional Doppler Monitoring Corroborates HAT-P-11 c as a Planet Yee, Samuel W. Petigura, Erik A. Isaacson, Howard Howard, Andrew W. Blunt, Sarah Dalba, Paul A. Dai, Fei Fulton, Benjamin J. Giacalone, Steven Kane, Stephen R. Kosiarek, Molly Mocnik, Teo Rice, Malena Rubenzahl, Ryan Saunders, Nicholas Tyler, Dakotah Weiss, Lauren M. Zhang, Jingwen Earth and Planetary Astrophysics Solar and Stellar Astrophysics In 2010, Bakos and collaborators discovered a Neptune-sized planet transiting the K-dwarf HAT-P-11 every five days. Later in 2018, Yee and collaborators reported an additional Jovian-mass companion on a nine year orbit based on a decade of Doppler monitoring. The eccentric outer giant HAT-P-11c may be responsible for the peculiar polar orbit of the inner planet HAT-P-11b. However, Basilicata et al. (2024) recently suggested that the HAT-P-11c Doppler signal could be caused by stellar activity. In this research note, we extend the Yee et al. (2018) Doppler time series by six years. The combined dataset spanning 17 years covers nearly two orbits of the outer planet. Importantly, we observe two periastron passages of planet c and do not observe a coherent activity signature. Together with the previously reported astrometric acceleration of HAT-P-11 from Hipparcos and Gaia, we believe there is strong evidence for HAT-P-11c as a bona fide planet. |
| title | Additional Doppler Monitoring Corroborates HAT-P-11 c as a Planet |
| topic | Earth and Planetary Astrophysics Solar and Stellar Astrophysics |
| url | https://arxiv.org/abs/2407.11109 |