HD 183579b: a warm sub-Neptune transiting a solar twin detected by TESS
In: Gan, Tianjun, Bedell, Megan, Wang, Sharon Xuesong, Foreman-Mackey, Daniel, Melendez, Jorge, Mao, Shude, Stassun, Keivan G., Howell, Steve B., Ziegler, Carl, Wittenmyer, Robert A., Hellier, Coel, Collins, Karen A., Shporer, Avi, Ricker, George R., Vanderspek, Roland, Latham, David W., Seager, Sara, Winn, Joshua N., Jenkins, Jon, 2021, S. 2220-2240
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academicJournal
Zugriff:
We report the discovery and characterization of a transiting warm sub-Neptune planet around the nearby bright (V = 8.75 mag, K = 7.15 mag) solar twin HD 183579, delivered by the Transiting Exoplanet Survey Satellite (TESS). The host star is located 56.8 +/- 0.1 pc away with a radius of R-* = 0.97 +/- 0.02R(circle dot) and a mass of M-* = 1.03 +/- 0.05M(circle dot). We confirm the planetary nature by combining space and ground-based photometry, spectroscopy, and imaging. We find that HD 183579b (TOI-1055b) has a radius of R-p = 3.53 +/- 0.13R(circle plus) on a 17.47 d orbit with a mass of M-p = 11.2 +/- 5.4M(circle plus) (3 sigma mass upper limit of 27.4M(circle plus)). HD 183579b is the fifth brightest known sub-Neptune planet system in the sky, making it an excellent target for future studies of the interior structure and atmospheric properties. By performing a line-by-line differential analysis using the high-resolution and signal-to-noise ratio HARPS spectra, we find that HD 183579 joins the typical solar twin sample, without a statistically significant refractory element depletion.
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HD 183579b: a warm sub-Neptune transiting a solar twin detected by TESS
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| Autor/in / Beteiligte Person: | Gan, Tianjun ; Bedell, Megan ; Wang, Sharon Xuesong ; Foreman-Mackey, Daniel ; Melendez, Jorge ; Mao, Shude ; Stassun, Keivan G. ; Howell, Steve B. ; Ziegler, Carl ; Wittenmyer, Robert A. ; Hellier, Coel ; Collins, Karen A. ; Shporer, Avi ; Ricker, George R. ; Vanderspek, Roland ; Latham, David W. ; Seager, Sara ; Winn, Joshua N. ; Jenkins, Jon M. ; Addison, Brett C. ; Ballard, Sarah ; Barclay, Thomas ; Bean, Jacob L. ; Bowler, Brendan P. ; Briceno, Cesar ; Crossfield, Ian J. M. ; Dittmann, Jason ; Horner, Jonathan ; Jensen, Eric L. N. ; Kane, Stephen R. ; Kielkopf, John ; Kreidberg, Laura ; Law, Nicholas ; Mann, Andrew W. ; Mengel, Matthew W. ; Morgan, Edward H. ; Okumura, Jack ; Osborn, Hugh P. ; Paegert, Martin ; Plavchan, Peter ; Schwarz, Richard P. ; Shiao, Bernie ; Smith, Jeffrey C. ; Spina, Lorenzo ; Tinney, C. G. ; Torres, Guillermo ; Twicken, Joseph D. ; Vezie, Michael ; Wang, Gavin ; Wright, Duncan J. ; Zhang, Hui |
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| Zeitschrift: | Gan, Tianjun, Bedell, Megan, Wang, Sharon Xuesong, Foreman-Mackey, Daniel, Melendez, Jorge, Mao, Shude, Stassun, Keivan G., Howell, Steve B., Ziegler, Carl, Wittenmyer, Robert A., Hellier, Coel, Collins, Karen A., Shporer, Avi, Ricker, George R., Vanderspek, Roland, Latham, David W., Seager, Sara, Winn, Joshua N., Jenkins, Jon, 2021, S. 2220-2240 |
| Veröffentlichung: | Oxford University Press, 2021 |
| Medientyp: | academicJournal |
| DOI: | 10.1093/mnras/stab2224 |
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