Results 31 to 40 of about 226 (101)
TESS-Keck Survey. XIV. Two Giant Exoplanets from the Distant Giants Survey
The Astronomical Journal, 2023 We present the Distant Giants Survey, a three-year radial velocity campaign to measure P(DG∣CS), the conditional occurrence of distant giant planets (DG; M _p ∼ 0.3–13 M _J , P > 1 yr) in systems hosting a close-in small planet (CS; R _p < 10 R _⊕ ). For
Judah Van Zandt +44 more
doaj +1 more source
Nondetections of Helium in the Young Sub-Jovian Planets K2-100b, HD 63433b, and V1298 Tau c
The Astronomical JournalWe search for excess in-transit absorption of neutral helium at 1.083 μ m in the atmospheres of the young (
Munazza K. Alam +12 more
doaj +1 more source
The Astronomical Journal, 2023 The orientation between a star’s spin axis and a planet’s orbital plane provides valuable information about the system’s formation and dynamical history. For non-transiting planets at wide separations, true stellar obliquities are challenging to measure,
Brendan P. Bowler +12 more
doaj +1 more source
Revised Mass and Orbit of ε Eridani b: A 1 MJup Planet on a Near-circular Orbit
The Astronomical JournalThe mature Jovian planet ε Eridani b ( ε Eri b) orbits one of the closest Sun-like stars at a moderate separation of 3.5 au, presenting one of the best opportunities to image a true analog to a solar system planet.
William Thompson +4 more
doaj +1 more source
The Astrophysical JournalUnderstanding the surface temperature and interior structure of cold-to-temperate sub-Neptunes is critical for assessing their habitability, yet direct observations are challenging.
Ziyu Huang +7 more
doaj +1 more source
The Astronomical JournalUnderstanding the relationship between close-in small (CS) planets and distant giants (DGs) is central to understanding the formation of planetary systems like our own.
Judah Van Zandt, Erik A. Petigura
doaj +1 more source
Discovery and Dynamics of the Nontransiting Planet Kepler-139f
The Astrophysical Journal LettersAmong the ways that an outer giant planet can alter the architecture of an inner planetary system is by tilting the orbits of the inner planets and reducing their mutual transit probabilities.
Caleb Lammers, Joshua N. Winn
doaj +1 more source
The Gap–Giant Association: Are Planets Hiding in the Gaps?
The Astrophysical JournalA handful of stars are known to host both an inner system of multiple transiting planets and an outer giant planet. These systems all feature a prominent gap between the orbits of two of the transiting planets, distinguishing them from typical ...
Caleb Lammers, Joshua N. Winn
doaj +1 more source
Planetary population synthesis and the emergence of four classes of planetary system architectures. [PDF]
Eur Phys J Plus, 2023 Emsenhuber A, Mordasini C, Burn R.
europepmc +1 more source
Searching for GEMS: The Occurrence of Giant Planets Orbiting M Dwarfs within 100 pc
The Astronomical JournalWe present results from a systematic search for transiting short-period giant exoplanets around M dwarf stars (GEMS; P
Rowen I. Glusman +32 more
doaj +1 more source