Results 111 to 120 of about 3,427 (167)

Solving protoplanetary structure equations using Adomian decomposition method. [PDF]

open access: yesHeliyon, 2021
Paul GC   +6 more
europepmc   +1 more source

JWST/NIRCam 4–5 μm Imaging of the Giant Planet AF Lep b

open access: yesThe Astrophysical Journal Letters
With a dynamical mass of 3 M _Jup , the recently discovered giant planet AF Lep b is the lowest-mass imaged planet with a direct mass measurement. Its youth and spectral type near the L/T transition make it a promising target to study the impact of ...
Kyle Franson   +25 more
doaj   +1 more source

Worlds Next Door: A Candidate Giant Planet Imaged in the Habitable Zone of α Centauri A. II. Binary Star Modeling, Planet and Exozodi Search, and Sensitivity Analysis

open access: yesThe Astrophysical Journal Letters
The James Webb Space Telescope (JWST) observed our closest solar twin, α Centauri A ( α Cen A), with the Mid-Infrared Instrument in the F1550C (15.5 μ m) coronagraphic imaging mode at three distinct epochs between 2024 August and 2025 April.
Aniket Sanghi   +16 more
doaj   +1 more source

Ice giant system exploration in the 2020s: an introduction. [PDF]

open access: yesPhilos Trans A Math Phys Eng Sci, 2020
Fletcher LN   +7 more
europepmc   +1 more source

Worlds Next Door: A Candidate Giant Planet Imaged in the Habitable Zone of α Centauri A. I. Observations, Orbital and Physical Properties, and Exozodi Upper Limits

open access: yesThe Astrophysical Journal Letters
We report on coronagraphic observations of the nearest solar-type star, α Centauri A ( α Cen A), using the MIRI instrument on the James Webb Space Telescope.
Charles Beichman   +29 more
doaj   +1 more source

Lessons from Hubble and Spitzer: 1D Self-consistent Model Grids for 19 Hot Jupiter Emission Spectra

open access: yesThe Astrophysical Journal
We present a population-level analysis of the dayside thermal emission spectra of 19 planets observed with Hubble WFC3 and Spitzer IRAC 3.6 and 4.5 μ m, spanning equilibrium temperatures 1200–2700 K and 0.7–10.5 Jupiter masses.
Lindsey S. Wiser   +6 more
doaj   +1 more source

A Moderate Albedo from Reflecting Aerosols on the Dayside of WASP-80 b Revealed by JWST/NIRISS Eclipse Spectroscopy

open access: yesThe Astronomical Journal
Secondary eclipse observations of exoplanets at near-infrared wavelengths enable the detection of thermal emission and reflected stellar light, providing insights into the thermal structure and aerosol composition of their atmospheres.
Kim Morel   +20 more
doaj   +1 more source

Planets larger than Neptune have elevated eccentricities. [PDF]

open access: yesProc Natl Acad Sci U S A
Gilbert GJ, Petigura EA, Entrican PM.
europepmc   +1 more source

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