Results 71 to 80 of about 2,904 (146)

Discovery of a Jupiter Analog Misaligned to the Inner Planetary System in HD 73344

The Astronomical Journal
We present the discovery of a Jupiter-like planet, HD 73344 d ( ${m}_{d}=2.5{5}_{-0.46}^{+0.56}\,{M}_{J}$ , ${a}_{d}=6.7{0}_{-0.26}^{+0.25}$ au, ${e}_{d}=0.1{8}_{-0.12}^{+0.14}$ ) based on 27 yr radial velocity (RV) observations from ELODIE, Lick ...
Jingwen Zhang, Lauren M. Weiss, Daniel Huber, Jerry W. Xuan, Michael Bottom, Benjamin J. Fulton, Howard Isaacson, Mason G. MacDougall, Nicholas Saunders   +8 more
doaj   +1 more source

Imaging Extrasolar Giant Planets

Publications of the Astronomical Society of the Pacific, 2016
PASP invited review ...
openaire   +3 more sources

Scattering of Giant Planets and Implications for the Origin of the Hierarchical and Eccentric Two-planet System GJ 1148

The Astrophysical Journal
The GJ 1148 system has two Saturn-mass planets orbiting around an M dwarf star on hierarchical and eccentric orbits, with orbital period ratio of 13 and eccentricities of both planets of 0.375. The inner planet is in the regime of eccentric warm Jupiters.
Longhui Yuan, Man Hoi Lee
doaj   +1 more source

The MIRI Exoplanets Orbiting White dwarfs (MEOW) Survey: Mid-infrared Excess Reveals a Giant Planet Candidate around a Nearby White Dwarf

The Astrophysical Journal Letters
The MIRI Exoplanets Orbiting White dwarfs survey is a cycle 2 JWST program to search for exoplanets around dozens of nearby white dwarfs via infrared excess and direct imaging.
Mary Anne Limbach, Andrew Vanderburg, Alexander Venner, Simon Blouin, Kevin B. Stevenson, Ryan J. MacDonald, Sydney Jenkins, Rachel Bowens-Rubin, Melinda Soares-Furtado, Caroline Morley, Markus Janson, John Debes, Siyi Xu, Evangelia Kleisioti, Matthew Kenworthy, Paul Butler, Jeffrey D. Crane, Dave Osip, Stephen Shectman, Johanna Teske   +19 more
doaj   +1 more source

Planets Around Solar Twins/Analogs (PASTA). I. High-precision Stellar Chemical Abundances for 17 Planet-hosting Stars and the Condensation Temperature Trend

The Astrophysical Journal
The Sun is depleted in refractory elements compared to nearby solar twins, which may be linked to the formation of giant or terrestrial planets. Here we present high-resolution, high signal-to-noise spectroscopic data for 17 solar-like stars hosting ...
Qinghui Sun, Sharon Xuesong Wang, Tianjun Gan, Chenyang Ji, Zitao Lin, Yuan-Sen Ting, Johanna Teske, Haining Li, Fan Liu, Xinyan Hua, Jiaxin Tang, Jie Yu, Jiayue Zhang, Mariona Badenas-Agusti, Andrew Vanderburg, George R. Ricker, Roland Vanderspek, David W. Latham, Sara Seager, Jon M. Jenkins, Richard P. Schwarz, Tristan Guillot, Thiam-Guan Tan, Dennis M. Conti, Kevin I. Collins, Gregor Srdoc, Chris Stockdale, Olga Suarez, Roberto Zambelli, Don Radford, Khalid Barkaoui, Phil Evans, Allyson Bieryla   +32 more
doaj   +1 more source

Outflow Driven by a Protoplanet Embedded in the TW Hya Disk

The Astrophysical Journal Letters
Gas giant planets are formed by gas accretion onto planetary cores in protoplanetary disks. However, direct evidence of this process is still lacking, limiting our understanding of planetary formation processes.
Tomohiro C. Yoshida, Hideko Nomura, Charles J. Law, Richard Teague, Yuhito Shibaike, Kenji Furuya, Takashi Tsukagoshi   +6 more
doaj   +1 more source

TESS Giants Transiting Giants. VII. A Hot Saturn Orbiting an Oscillating Red Giant Star

The Astronomical Journal
We present the discovery of TOI-7041 b (TIC 201175570b), a hot Saturn transiting a red giant star with measurable stellar oscillations. We observe solar-like oscillations in TOI-7041 with a frequency of maximum power of ${\nu }_{{\rm{\max }}}\,=\,$ 218 ...
Nicholas Saunders, Samuel K. Grunblatt, Daniel Huber, J. M. Joel Ong, Kevin C. Schlaufman, Daniel Hey, Yaguang Li, R. P. Butler, Jeffrey D. Crane, Steve Shectman, Johanna K. Teske, Samuel N. Quinn, Samuel W. Yee, Rafael Brahm, Trifon Trifonov, Andrés Jordán, Thomas Henning, David K. Sing, Meredith MacGregor, Catherine A. Clark, Colin Littlefield, Sarah Deveny, Steve B. Howell, Emma Page, David Rapetti, Ben Falk, Alan M. Levine, Chelsea X. Huang, Michael B. Lund, George R. Ricker, S. Seager, Joshua N. Winn, Jon M. Jenkins   +32 more
doaj   +1 more source

Understanding the Formation of Saturn's Regular Moons in the Context of Giant Planet Moons Formation Scenarios. [PDF]

Space Sci Rev
Blanc M, Crida A, Shibaike Y, Charnoz S, El Moutamid M, Estrada P, Mousis O, Salmon J, Schneeberger A, Vernazza P.   +9 more
europepmc   +1 more source

The evolution of hot Jupiters revealed by the age distribution of their host stars. [PDF]

Proc Natl Acad Sci U S A, 2023
Chen DC, Xie JW, Zhou JL, Dong S, Yang JY, Zhu W, Liu C, Huang Y, Xiang MS, Wang HF, Zheng Z, Luo AL, Zhang JH, Zhu Z.   +13 more
europepmc   +1 more source

An Informational-Entropic Approach to Exoplanet Characterization. [PDF]

Entropy (Basel)
Vannah S, Stiehl ID, Gleiser M.
europepmc   +1 more source