A Testbed for Tidal Migration: The 3D Architecture of an Eccentric Hot Jupiter HD 118203 b Accompanied by a Possibly Aligned Outer Giant Planet

Characterizing outer companions to hot Jupiters plays a crucial role in deciphering their origins. We present the discovery of a long-period giant planet, HD 118203 c ( ${m}_{c}={11.79}_{-0.63}^{+0.69}\ {M}_{{\rm{J}}}$ , ${a}_{c}={6.28}_{-0.11}^{+0.10}$ au) exterior to a close-in eccentric hot Jupit...

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Hlavní autoři:	Jingwen Zhang, Daniel Huber, Lauren M. Weiss, Jerry W. Xuan, Jennifer A. Burt, Fei Dai, Nicholas Saunders, Erik A. Petigura, Ryan A. Rubenzahl, Joshua N. Winn, Sharon X. Wang, Judah Van Zandt, Max Brodheim, Zachary R. Claytor, Ian Crossfield, William Deich, Benjamin J. Fulton, Steven R. Gibson, Samuel Halverson, Grant M. Hill, Bradford Holden, Aaron Householder, Andrew W. Howard, Howard Isaacson, Stephen Kaye, Kyle Lanclos, Russ R. Laher, Jack Lubin, Joel Payne, Arpita Roy, Christian Schwab, Abby P. Shaum, Josh Walawender, Edward Wishnow, Sherry Yeh
Médium:	Artigo
Jazyk:	Inglês
Vydáno:	IOP Publishing 2024-01-01
Edice:	The Astronomical Journal
Témata:	Hot Jupiters Exoplanet dynamics Gaia Astrometry Radial velocity Exoplanet migration
On-line přístup:	https://doi.org/10.3847/1538-3881/ad86c4
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