Confirmation and characterisation of three giant planets detected by TESS from the FIES/NOT and Tull/McDonald spectrographs
| Autor: | Emil Knudstrup, Luisa M. Serrano, Davide Gandolfi, Simon H. Albrecht, William D. Cochran, Michael Endl, Phillip MacQueen, René Tronsgaard, Allyson Bieryla, Lars A. Buchhave, Keivan Stassun, Karen A. Collins, Grzegorz Nowak, Hans J. Deeg, Khalid Barkaoui, Boris S. Safonov, Ivan A. Strakhov, Alexandre A. Belinski, Joseph D. Twicken, Jon M. Jenkins, Andrew W. Howard, Howard Isaacson, Joshua N. Winn, Kevin I. Collins, Dennis M. Conti, Gabor Furesz, Tianjun Gan, John F. Kielkopf, Bob Massey, Felipe Murgas, Lauren G. Murphy, Enric Palle, Samuel N. Quinn, Phillip A. Reed, George R. Ricker, Sara Seager, Bernie Shiao, Richard P. Schwarz, Gregor Srdoc, David Watanabe |
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| Rok vydání: | 2022 |
| Předmět: |
Planet-star interactions
Earth and Planetary Astrophysics (astro-ph.EP) detection [Planets and satellites] gaseous planets [Planets and satellites] radial velocities [Techniques] Space and Planetary Science photometric [Techniques] FOS: Physical sciences Astronomy and Astrophysics Astrophysics - Earth and Planetary Astrophysics |
| Zdroj: | Knudstrup, E, Serrano, L M, Gandolfi, D, Albrecht, S H, Cochran, W D, Endl, M, Macqueen, P, Tronsgaard, R, Bieryla, A, Buchhave, L A, Stassun, K, Collins, K A, Nowak, G, Deeg, H J, Barkaoui, K, Safonov, B S, Strakhov, I A, Belinski, A A, Twicken, J D, Jenkins, J M, Howard, A W, Isaacson, H, Winn, J N, Collins, K I, Conti, D M, Furesz, G, Gan, T, Kielkopf, J F, Massey, B, Murgas, F, Murphy, L G, Palle, E, Quinn, S N, Reed, P A, Ricker, G R, Seager, S, Shiao, B, Schwarz, R P, Srdoc, G & Watanabe, D 2022, ' Confirmation and characterisation of three giant planets detected by TESS from the FIES/NOT and Tull/McDonald spectrographs ', Astronomy and Astrophysics, vol. 667, A22 . https://doi.org/10.1051/0004-6361/202243656 Knudstrup, E, Serrano, L M, Gandolfi, D, Albrecht, S H, Cochran, W D, Endl, M, MacQueen, P, Tronsgaard, R, Bieryla, A, Buchhave, L A, Stassun, K, Collins, K A, Nowak, G, Deeg, H J, Barkaoui, K, Safonov, B S, Strakhov, I A, Belinski, A A, Twicken, J D, Jenkins, J M, Howard, A W, Isaacson, H, Winn, J N, Collins, K, Conti, D M, Furesz, G, Gan, T, Kielkopf, J F, Massey, B, Murgas, F, Murphy, L G, Palle, E, Quinn, S N, Reed, P A, Ricker, G R, Seager, S, Shiao, B, Schwarz, R P, Srdoc, G & Watanabe, D 2022, ' Confirmation and characterisation of three giant planets detected by TESS from the FIES/NOT and Tull/McDonald spectrographs ', Astronomy and Astrophysics, vol. 667, A22 . https://doi.org/10.1051/0004-6361/202243656 |
| DOI: | 10.48550/arxiv.2204.13956 |
| Popis: | We report the confirmation and characterisation of TOI-1820~b, TOI-2025~b, and TOI-2158~b, three Jupiter-sized planets on short-period orbits around G-type stars detected by TESS. Through our ground-based efforts using the FIES and Tull spectrographs, we have confirmed these planets and characterised their orbits, and find periods of around $4.9$~d, $8.9$~d, and $8.6$~d for TOI-1820~b, TOI-2025~b, and TOI-2158~b, respectively. The sizes of the planets range from 0.96 to 1.14 Jupiter radii, and their masses are in the range from 0.8 to 4.4 Jupiter masses. For two of the systems, namely TOI-2025 and TOI-2158, we see a long-term trend in the radial velocities, indicating the presence of an outer companion in each of the two systems. For TOI-2025 we furthermore find the star to be well-aligned with the orbit, with a projected obliquity of $9^{+33}_{-31}$~$^\circ$. As these planets are all found in relatively bright systems (V$\sim$10.9-11.6 mag), they are well-suited for further studies, which could help shed light on the formation and migration of hot and warm Jupiters. Comment: Accepted for publication in A&A. 19 pages, 15 figures |
| Databáze: | OpenAIRE |
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