Results 41 to 50 of about 2,964,883 (268)

Aerosol dynamics on hot exoplanets: the role of radiation pressure [PDF]

open access: greenMonthly Notices of the Royal Astronomical Society
ABSTRACT Aerosols appear to be ubiquitous in exoplanetary atmospheres. However, because our understanding of the physical processes that govern aerosols is incomplete, their presence makes the measurement of atmospheric properties, such as molecular abundance ratios, difficult.
James E. Owen, Ruth Murray‐Clay
  +5 more sources

Emergent Exoplanet Flux: Review of the Spitzer Results [PDF]

open access: yes, 2008
Observations using the Spitzer Space Telescope provided the first detections of photons from extrasolar planets. Spitzer observations are allowing us to infer the temperature structure, composition, and dynamics of exoplanet atmospheres.
Bouchy   +6 more
core   +1 more source

Studying exoplanet orbits & dynamics with allesfitter

open access: gold, 2022
<p>The orbits and dynamics of exoplanet systems can unveil their tales of formation, migration, star-planet interactions, and atmospheric properties. Kepler, TESS, and soon PLATO deliver an unprecedented wealth of new photometric data on this matter, while ground-based follow-up and radial velocity instruments add valuable insights. Here,
Maximilian N. Günther
openalex   +2 more sources

Exoplanet albedo spectra and colors as a function of planet phase, separation, and metallicity [PDF]

open access: yes, 2010
First generation optical coronagraphic telescopes will obtain images of cool gas and ice giant exoplanets around nearby stars. The albedo spectra of exoplanets at planet-star separations larger than about 1 AU are dominated by reflected light to beyond 1
Ackerman   +58 more
core   +2 more sources

Secular spin-axis dynamics of exoplanets [PDF]

open access: yesAstronomy & Astrophysics, 2019
Context. Seasonal variations and climate stability of a planet are very sensitive to the planet obliquity and its evolution. This is of particular interest for the emergence and sustainability of land-based life, but orbital and rotational parameters of exoplanets are still poorly constrained.
Saillenfest, M., Laskar, J., Boué, G.
openaire   +4 more sources

TOI-1136 is a Young, Coplanar, Aligned Planetary System in a Pristine Resonant Chain

open access: yesThe Astronomical Journal, 2023
Convergent disk migration has long been suspected to be responsible for forming planetary systems with a chain of mean-motion resonances (MMRs). Dynamical evolution over time could disrupt the delicate resonant configuration. We present TOI-1136, a 700 ±
Fei Dai   +62 more
doaj   +1 more source

Radial velocity eclipse mapping of exoplanets [PDF]

open access: yes, 2015
Planetary rotation rates and obliquities provide information regarding the history of planet formation, but have not yet been measured for evolved extrasolar planets.
Barnes J. W.   +23 more
core   +2 more sources

Secular spin-axis dynamics of exoplanets (Corrigendum) [PDF]

open access: yesAstronomy & Astrophysics, 2019
International ...
Saillenfest, M., Laskar, J., Boué, G.
openaire   +3 more sources

On the orbital stability of exoplanet satellites

open access: yesPublications of the Pulkovo_Observatory, 2022
By calculating the Lyapunov characteristic exponents, an analysis was made of the stability of the secular orbital dynamics of satellites for a number of exoplanets in which the presence of an exomoon is possible.
A. Melnikov
semanticscholar   +1 more source

Observations of Extrasolar Planets During the non-Cryogenic Spitzer Space Telescope Mission [PDF]

open access: yes, 2007
Precision infrared photometry from Spitzer has enabled the first direct studies of light from extrasolar planets, via observations at secondary eclipse in transiting systems.
David Charbonneau   +7 more
core   +2 more sources

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