تقرير
Spinning up a Daze: TESS Uncovers a Hot Jupiter orbiting the Rapid-Rotator TOI-778
| العنوان: | Spinning up a Daze: TESS Uncovers a Hot Jupiter orbiting the Rapid-Rotator TOI-778 |
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| المؤلفون: | Clark, Jake, Addison, Brett, Okumura, Jack, Vach, Sydney, Heitzmann, Alexis, Rodriguez, Joseph, Wright, Duncan, Clerte, Mathieu, Brown, Carolyn, Fetherolf, Tara, Wittenmyer, Robert, Plavchan, Peter, Kane, Stephen, Horner, Jonathan, Kielkopf, John, Shporer, Avi, Tinney, C., Hui-Gen, Liu, Ballard, Sarah, Bowler, Brendan, Mengel, Matthew, Zhou, George, Lee, Annette, David, Avelyn, Heim, Jessica, Lee, Michele, Sevilla, Veronica, Zafar, Naqsh, Hinkel, Natalie, Allen, Bridgette, Bayliss, Daniel, Berberyan, Arthur, Berlind, Perry, Bieryla, Allyson, Bouchy, Francois, Brahm, Rafael, Bryant, Edward, Christiansen, Jessie, Ciardi, David, Ciardi, Krys, Collins, Karen, Dallant, Jules, Davis, Allen, Diaz, Matias, Dressing, Courtney, Esquerdo, Gilbert, Harre, Jan-Vincent, Howell, Steve, Jenkins, Jon, Jensen, Eric, Jones, Matias, Jordan, Andres, Latham, David, Lund, Michael, McCormac, James, Nielsen, Louise, Otegi, Jon, Quinn, Samuel, Radford, Don, Ricker, George, Schwarz, Richard, Seager, Sara, Smith, Alexis, Stockdale, Chris, Tan, Thiam-Guan, Udry, Stephane, Vanderspek, Roland, Gunther, Maximilian, Wang, Songhu, Wingham, Geof, Winn, Joshua |
| المصدر: | AJ 165 207 (2023) |
| سنة النشر: | 2022 |
| المجموعة: | Astrophysics |
| مصطلحات موضوعية: | Astrophysics - Earth and Planetary Astrophysics |
| الوصف: | NASA's Transiting Exoplanet Survey Satellite (TESS) mission, has been uncovering a growing number of exoplanets orbiting nearby, bright stars. Most exoplanets that have been discovered by TESS orbit narrow-line, slow-rotating stars, facilitating the confirmation and mass determination of these worlds. We present the discovery of a hot Jupiter orbiting a rapidly rotating ($v\sin{(i)}= 35.1\pm1.0$km/s) early F3V-dwarf, HD115447 (TOI-778). The transit signal taken from Sectors 10 and 37 of TESS's initial detection of the exoplanet is combined with follow-up ground-based photometry and velocity measurements taken from Minerva-Australis, TRES, CORALIE and CHIRON to confirm and characterise TOI-778b. A joint analysis of the light curves and the radial velocity measurements yield a mass, radius, and orbital period for TOI-778b of $2.76^{+0.24}_{-0.23}$Mjup, $1.370\pm0.043$Rjup and $\sim4.63$ days, respectively. The planet orbits a bright ($V = 9.1$mag) F3-dwarf with $M=1.40\pm0.05$Msun, $R=1.70\pm0.05$Rsun, and $\log g=4.05\pm0.17$. We observed a spectroscopic transit of TOI-778b, which allowed us to derive a sky-projected spin-orbit angle of $18^{\circ}\pm11^{\circ}$, consistent with an aligned planetary system. This discovery demonstrates the capability of smaller aperture telescopes such as Minerva-Australis to detect the radial velocity signals produced by planets orbiting broad-line, rapidly rotating stars. Comment: 18 pages, 9 figures, and 4 tables. Submitted to the Astronomical Journal |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.3847/1538-3881/acc3a0 |
| الوصول الحر: | http://arxiv.org/abs/2212.08242Test |
| رقم الانضمام: | edsarx.2212.08242 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.3847/1538-3881/acc3a0 |
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