KELT-21b: A Hot Jupiter Transiting the Rapidly-Rotating Metal-Poor Late-A Primary of a Likely Hierarchical Triple System

We present the discovery of KELT-21b, a hot Jupiter transiting the \(V=10.5\) A8V star HD 332124. The planet has an orbital period of \(P=3.6127647\pm0.0000033\) days and a radius of \(1.586_{-0.040}^{+0.039}\) \(R_J\). We set an upper limit on the planetary mass of \(M_P

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Veröffentlicht in:	arXiv.org 2018-01
Hauptverfasser:	Johnson, Marshall C, Rodriguez, Joseph E, Zhou, George, Gonzales, Erica J, Cargile, Phillip A, Crepp, Justin R, Penev, Kaloyan, Stassun, Keivan G, Gaudi, B Scott, Colón, Knicole D, Stevens, Daniel J, Strassmeier, Klaus G, Ilyin, Ilya, Collins, Karen A, Kielkopf, John F, Oberst, Thomas E, Maritch, Luke, Reed, Phillip A, Gregorio, Joao, Bozza, Valerio, Novati, Sebastiano Calchi, D'Ago, Giuseppe, Scarpetta, Gaetano, Zambelli, Roberto, Latham, David W, Bieryla, Allyson, Cochran, William D, Endl, Michael, Tayar, Jamie, Serenelli, Aldo, Victor Silva Aguirre, Clarke, Seth P, Martinez, Maria, Spencer, Michelle, Trump, Jason, Joner, Michael D, Bugg, Adam G, Hintz, Eric G, Stephens, Denise C, Arredondo, Anicia, Benzaid, Anissa, Yazdi, Sormeh, McLeod, Kim K, Jensen, Eric L N, Hancock, Daniel A, Sorber, Rebecca L, Kasper, David H, Jang-Condell, Hannah, Beatty, Thomas G, Carroll, Thorsten, Eastman, Jason, James, David, Kuhn, Rudolf B, Labadie-Bartz, Jonathan, Lund, Michael B, Mallonn, Matthias, Pepper, Joshua, Siverd, Robert J, Yao, Xinyu, Cohen, David H, Curtis, Ivan A, DePoy, D L, Fulton, Benjamin J, Penny, Matthew T, Relles, Howard, Stockdale, Christopher, Thiam-Guan Tan, Villanueva, Steven
Format:	Artikel
Sprache:	eng
Schlagworte:	Extrasolar planets Gas giant planets Image resolution Iron Jupiter Kinematics Metallicity Misalignment Physics - Astrophysics of Galaxies Physics - Earth and Planetary Astrophysics Planetary mass Planetary orbits Separation Stellar rotation Stellar systems Transit
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Zusammenfassung:	We present the discovery of KELT-21b, a hot Jupiter transiting the \(V=10.5\) A8V star HD 332124. The planet has an orbital period of \(P=3.6127647\pm0.0000033\) days and a radius of \(1.586_{-0.040}^{+0.039}\) \(R_J\). We set an upper limit on the planetary mass of \(M_P
ISSN:	2331-8422
DOI:	10.48550/arxiv.1712.03241