Results 101 to 110 of about 2,143 (179)

Dynamical Tide-modified Roche Limit in Eccentric, Asynchronous Binaries

The Astrophysical Journal
The Roche limit, or the threshold separation within which a celestial object (the donor) M cannot remain in a stable configuration due to a companion’s tidal field, has been well established when M is in hydrostatic equilibrium and has synchronous ...
Hang Yu, Shu Yan Lau, Ethan Mckeever, Phil Arras, Nevin N. Weinberg   +4 more
doaj   +1 more source

A comprehensive investigation of the Galilean moon, Io, by tracing mass and energy flows. [PDF]

Exp Astron (Dordr), 2022
Thomas N.
europepmc   +1 more source

Identifying Close-in Jupiters that Arrived via Disk Migration: Evidence of Primordial Alignment, Preference of Nearby Companions and Hint of Runaway Migration

The Astronomical Journal
Two leading hypotheses for hot Jupiter migration are disk migration and high-eccentricity migration (HEM). Stellar obliquity is commonly used to distinguish them, as high obliquity often accompanies HEM.
Yugo Kawai, Akihiko Fukui, Noriharu Watanabe, Sho Fukazawa, Norio Narita   +4 more
doaj   +1 more source

Long-Term Earth-Moon Evolution With High-Level Orbit and Ocean Tide Models. [PDF]

J Geophys Res Planets, 2021
Daher H, Arbic BK, Williams JG, Ansong JK, Boggs DH, Müller M, Schindelegger M, Austermann J, Cornuelle BD, Crawford EB, Fringer OB, Lau HCP, Lock SJ, Maloof AC, Menemenlis D, Mitrovica JX, Green JAM, Huber M.   +17 more
europepmc   +1 more source

A Revised Density Estimate for the Largest Known Exoplanet, HAT-P-67 b

The Astronomical Journal
Low-density ( ρ _p  
Gavin Wang, William O. Balmer, Laurent Pueyo, Daniel Thorngren, Stephen P. Schmidt, Le-Chris Wang, Kevin C. Schlaufman, Guðmundur Stefánsson, Zafar Rustamkulov, David K. Sing   +9 more
doaj   +1 more source

Atmospheric composition of exoplanets based on the thermal escape of gases and implications for habitability. [PDF]

Proc Math Phys Eng Sci, 2020
Konatham S, Martin-Torres J, Zorzano MP.
europepmc   +1 more source

Polar Orbits around the Newly Formed Earth–Moon Binary System

The Astrophysical Journal
We examine the dynamics and stability of circumbinary particles orbiting around the Earth–Moon binary system. The moon formed close to the Earth (semimajor axis a _EM ≈ 3 R _⊕ ) and expanded through tides to its current day semimajor axis ( a _EM = 60 R ...
Stephen Lepp, Rebecca G. Martin, Stanley A. Baronett   +2 more
doaj   +1 more source

The Effect of Tidal Heating and Volatile Budgets on the Outgassed Atmosphere of 55 Cancri e

The Astrophysical Journal
55 Cancri e (55 Cnc e) is an ∼8 Gyr rocky world (1.95 R _⊕ and 8.8 M _⊕ ) orbiting a K-type star. JWST observations suggest a carbon-dominated atmosphere (CO _2 and CO) over a global magma ocean (>3000 K). We suggest that any CO _2 -dominated atmosphere,
Barron K. Nguyen, Laura K. Schaefer, Fei Dai, Héctor E. Delgado-Díaz   +3 more
doaj   +1 more source

Constraining Ongoing Volcanic Outgassing Rates and Interior Compositions of Extrasolar Planets with Mass Measurements of Plasma Tori

The Astrophysical Journal Letters
We present a novel method of constraining volcanic activity on extrasolar terrestrial worlds via characterization of circumstellar plasma tori. Our work generalizes the physics of the Io plasma torus to propose a hypothetical circumstellar plasma torus ...
V. Abby Boehm, Darryl Z. Seligman, Nikole K. Lewis   +2 more
doaj   +1 more source

A Novel Method to Constrain Tidal Quality Factor from A Nonsynchronized Exoplanetary System

The Astrophysical Journal
We propose a novel method to constrain the tidal quality factor, $Q^{\prime} $ , from an observed nonsynchronized star–planet system consisting of a slowly rotating low-mass star and a close-in Jovian planet, taking into account the coevolution of ...
Takato Tokuno, Akihiko Fukui, Takeru K. Suzuki   +2 more
doaj   +1 more source