تقرير
KELT-23Ab: A Hot Jupiter Transiting a Near-solar Twin Close to the TESS and JWST Continuous Viewing Zones
| العنوان: | KELT-23Ab: A Hot Jupiter Transiting a Near-solar Twin Close to the TESS and JWST Continuous Viewing Zones |
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| المؤلفون: | Daniel Johns, Phillip A. Reed, Joseph E. Rodriguez, Joshua Pepper, Keivan G. Stassun, Kaloyan Penev, B. Scott Gaudi, Jonathan Labadie-Bartz, Benjamin J Fulton, Samuel N. Quinn, Jason D. Eastman, David R Ciardi, Lea Hirsch, Daniel J. Stevens, Catherine P. Stevens, Thomas E. Oberst, David H Cohen, Eric L. N. Jensen, Paul Benni, Steven Villanueva Jr, Gabriel Murawski, Allyson Bieryla, David W. Latham, Siegfried Vanaverbeke, Franky Dubois, Steve Rau, Ludwig Logie, Ryan F. Rauenzahn, Robert A. Wittenmyer, Roberto Zambelli, Daniel Bayliss, Thomas G. Beatty, Karen A. Collins, Knicole Colon, Ivan A. Curtis, Phil Evans, Joao Gregorio, David James, D. L. Depoy, Marshall C. Johnson, Michael D. Joner, David H. Kasper, Somayeh Khakpash, John F. Kielkopf, Rudolf B. Kuhn, Michael B. Lund, Mark Manner, Jennifer L. Marshall, Kim K. McLeod, Matthew T. Penny, Howard Relles, Robert J. Siverd, Denise C. Stephens, Chris Stockdale, Thiam-Guan Tan, Mark Trueblood, Pat Trueblood, Xinyu Yao |
| المصدر: | The Astronomical Journal. 158(2) |
| بيانات النشر: | United States: NASA Center for Aerospace Information (CASI), 2019. |
| سنة النشر: | 2019 |
| مصطلحات موضوعية: | Astronomy |
| الوصف: | We announce the discovery of KELT-23Ab, a hot Jupiter transiting the relatively bright(V = 10.3) star BD+66911(TYC 4187-996-1), and characterize the system using follow-up photometry and spectroscopy. A global fit to the system yields host-star properties of= T5900 49effK,=-+MM0.9450.0540.060*, = RR0.995 0.015*, =-+LL1.0820.0480.051*, =-+ glog 4.4180.0250.026 (cgs), and=- Fe H0.105 0.077. KELT-23Ab is a hot Jupiter with a mass of= -+ MM0.938P0.0420.045J, radius of = RR1.322 0.025PJ, and density of r=-+ 0.504P0.0350.038gcm − 3. Intense insolation flux from the star has likely caused KELT-23Ab to become inflated. The time of inferior conjunction is=T2458149.40776=0.00091 BJD0TDB and the orbital period is=-+P2.2553530.0000300.000031days. There is strong evidence that KELT-23A is a member of a long-period binary star system with a less luminous companion, and due to tidal interactions, the planet is likely to spiral into its host within roughly a gig a year. This system has one of the highest positive ecliptic latitudes of all transiting planet hosts known to date, placing it near the Transiting Planet Survey Satellite and James Webb Space Telescope continuous viewing zones. Thus we expect it to be an excellent candidate for long-term monitoring and follow up with these facilities. |
| نوع الوثيقة: | Report |
| اللغة: | English |
| تدمد: | 1538-3881 0004-6256 |
| DOI: | 10.3847/1538-3881/ab24c7 |
| URL الوصول: | https://ntrs.nasa.gov/citations/20210011898 |
| ملاحظات: | 985788 |
| رقم الأكسشن: | edsnas.20210011898 |
| قاعدة البيانات: | NASA Technical Reports |
| تدمد: | 15383881 00046256 |
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| DOI: | 10.3847/1538-3881/ab24c7 |