학술논문
An Eccentric Massive Jupiter Orbiting a Sub-Giant on a 9.5 Day Period Discovered in the Transiting Exoplanet Survey Satellite Full Frame Images
Document Type
Working Paper
Author
Rodriguez, Joseph E.; Quinn, Samuel N.; Huang, Chelsea X.; Vanderburg, Andrew; Penev, Kaloyan; Brahm, Rafael; Jordán, Andrés; Ikwut-Ukwa, Mma; Tsirulik, Shelly; Latham, David W.; Stassun, Keivan G.; Shporer, Avi; Ziegler, Carl; Matthews, Elisabeth; Eastman, Jason D.; Gaudi, B. Scott; Collins, Karen A.; Guerrero, Natalia; Relles, Howard M.; Barclay, Thomas; Batalha, Natalie M.; Berlind, Perry; Bieryla, Allyson; Bouma, L. G.; Boyd, Patricia T; Burt, Jennifer; Calkins, Michael L.; Christiansen, Jessie; Ciardi, David R.; Colón, Knicole D.; Conti, Dennis M.; Crossfield, Ian J. M.; Daylan, Tansu; Dittmann, Jason; Dragomir, Diana; Dynes, Scott; Espinoza, Néstor; Esquerdo, Gilbert A.; Essack, Zahra; Soto, Aylin Garcia; Glidden, Ana; Günther, Maximilian N.; Henning, Thomas; Jenkins, Jon M.; Kielkopf, John F.; Krishnamurthy, Akshata; Law, Nicholas M.; Levine, Alan M.; Lewin, Pablo; Mann, Andrew W.; Morgan, Edward H.; Morris, Robert L.; Oelkers, Ryan J.; Paegert, Martin; Pepper, Joshua; Quintana, Elisa V.; Ricker, George R.; Rowden, Pamela; Seager, Sara; Sarkis, Paula; Schlieder, Joshua E.; Sha, Lizhou; Tokovinin, Andrei; Torres, Guillermo; Vanderspek, Roland K.; Villanueva Jr., Steven; Villaseñor, Jesus Noel; Winn, Joshua N.; Wohler, Bill; Wong, Ian; Yahalomi, Daniel A.; Yu, Liang; Zhan, Zhuchang; Zhou, George
Source
The Astronomical Journal, 2019, Volume 157, Issue 5, 191, 13
Subject
Language
Abstract
We report the discovery of TOI-172 b from the Transiting Exoplanet Survey Satellite (TESS) mission, a massive hot Jupiter transiting a slightly evolved G-star with a 9.48-day orbital period. This is the first planet to be confirmed from analysis of only the TESS full frame images, because the host star was not chosen as a two minute cadence target. From a global analysis of the TESS photometry and follow-up observations carried out by the TESS Follow-up Observing Program Working Group, TOI-172 (TIC 29857954) is a slightly evolved star with an effective temperature of $T_{\rm eff}$ =$5645\pm50$ K, a mass of $M_{\star}$ = $1.128^{+0.065}_{-0.061}$ $M_{\odot}$, radius of $R_{\star}$ = $1.777^{+0.047}_{-0.044}$ $R_{\odot}$, a surface gravity of $\log$ $g_{\star}$ = $3.993^{+0.027}_{-0.028}$, and an age of $7.4^{+1.6}_{-1.5}$ Gyr. Its planetary companion (TOI-172 b) has a radius of $R_{\rm P}$ = $0.965^{+0.032}_{-0.029}$ $R_{\rm J}$, a mass of $M_{\rm P}$ = $5.42^{+0.22}_{-0.20}$ $M_{\rm J}$, and is on an eccentric orbit ($e = 0.3806^{+0.0093}_{-0.0090}$). TOI-172 b is one of the few known massive giant planets on a highly eccentric short-period orbit. Future study of the atmosphere of this planet and its system architecture offer opportunities to understand the formation and evolution of similar systems.
Comment: 14 pages, 8 figures, 4 tables, Published in AJ
Comment: 14 pages, 8 figures, 4 tables, Published in AJ