Results 51 to 60 of about 2,361 (128)
Occurrence Rates of Exosatellites Orbiting 3–30 M Jup Hosts from 44 Spitzer Light Curves
The Astronomical JournalWe conduct a comprehensive search for transiting exomoons and exosatellites within 44 archival Spitzer light curves of 32 substellar worlds with estimated masses ranging between 3 and 30 M _Jup . This sample’s median host mass is 16 M _Jup , inclusive of
Mary Anne Limbach +3 more
doaj +1 more source
Exomoon Habitability and Tidal Evolution in Low-Mass Star Systems
, 2017 Discoveries of extrasolar planets in the habitable zone (HZ) of their parent star lead to questions about the habitability of massive moons orbiting planets in the HZ. Around low-mass stars, the HZ is much closer to the star than for Sun-like stars.
Armstrong, John C. +2 more
core +1 more source
Journal of Geophysical Research: Planets, Volume 129, Issue 3, March 2024.Abstract Toroidal atmospheres and exospheres characterized at exoplanets may be fueled by volcanically active exomoons, often referred to as exo‐Ios. We study the neutral outgassing and volatile evolution of a close‐orbiting, evaporating satellite at eight candidate exoplanet‐exomoon systems WASP‐49,‐96,‐69,‐17 b, XO‐2N b, HAT‐P‐1 b, HD‐189733 b, and ...
M. Meyer zu Westram, A. V. Oza, A. Galli
wiley +1 more source
Redshifted Sodium Transient near Exoplanet Transit
The Astrophysical Journal LettersNeutral sodium (Na i ) is an alkali metal with a favorable absorption cross section such that tenuous gases are easily illuminated at select transiting exoplanet systems. We examine both the time-averaged and time-series alkali spectral flux individually,
Apurva V. Oza +23 more
doaj +1 more source
Formation of exoplanetary satellites by pull-down capture. [PDF]
, 2019 The large size and wide orbit of the recently announced exomoon candidate Kepler-1625b-i are hard to explain within traditional theories of satellite formation.
Hansen, Bradley MS
core +1 more source
Multiple Habitable Phases on Outer Exosolar Worlds
The Astrophysical JournalAs stars evolve to higher luminosities during first ascension of the giant branch, previously frozen terrestrial worlds may thaw and host liquid water on their surfaces.
Viktor Sparrman, Sara Bladh, M. J. Way
doaj +1 more source
The Formation and Dynamics of Super-Earth Planets
, 2013 Super-Earths, objects slightly larger than Earth and slightly smaller than Uranus, have found a special place in exoplanetary science. As a new class of planetary bodies, these objects have challenged models of planet formation at both ends of the ...
Haghighipour, Nader
core +1 more source
Tidal pattern instabilities on multi-moon planets [PDF]
, 2007 The equilibrium tide-generating forces in the lunar orbital plane of a planet of radius R are calculated for the case of N moons of mass M_i orbiting the planet at instantaneous polar coordinates (D_i, \alpha_i).
Furno, Joanna, Kuehn, Kerry
core +2 more sources
A Deep Search for Exomoons around WISE 0855 with JWST
The Astronomical JournalThe James Webb Space Telescope (JWST) is collecting time-series observations of many free-floating planets (FFPs) to study their weather, but these light curves provide ideal datasets for locating exomoons that transit FFPs during observations.
Mikayla J. Wilson +13 more
doaj +1 more source
, 2004 A transiting extrasolar planet sequentially blocks off the light coming from the different parts of the disk of the host star in a time dependent manner.
Atsushi Taruya +13 more
core +4 more sources