Results 11 to 20 of about 55,109 (308)

A Hydrodynamic Study of the Escape of Metal Species and Excited Hydrogen from the Atmosphere of the Hot Jupiter WASP-121b

open access: yesThe Astrophysical Journal, 2023
In the near-UV and optical transmission spectrum of the hot Jupiter WASP-121b, recent observations have detected strong absorption features of Mg, Fe, Ca, and H α , extending outside of the planet’s Roche lobe.
Chenliang Huang   +3 more
doaj   +1 more source

Residual Study: Testing Jupiter Atmosphere Models Against Juno MWR Observations

open access: yesEarth and Space Science, 2020
The Juno spacecraft provides unique close‐up views of Jupiter underneath the synchrotron radiation belts while circling Jupiter in its 53‐day orbits. The microwave radiometer (MWR) onboard measures Jupiter thermal radiation at wavelengths between 1.37 ...
Zhimeng Zhang   +22 more
doaj   +1 more source

Oscillatory Modes оf the Atmosphere оf Jupiter аnd Venus

open access: yesНаука. Инновации. Технологии, 2023
Introduction. The article studies the oscillatory modes of the atmosphere of two planets (Jupiter, Venus), taking into account the influence of axial rotation, which affects the occurrence of beating and resonance, and comparing their parameters with the
I. S. Afanasyev   +2 more
doaj   +1 more source

Jupiter’s Atmosphere Dynamics Based on High-Resolution Spectroscopy with VLT/ESPRESSO

open access: yesUniverse, 2023
We present a new study of Jupiter’s atmosphere dynamics using for the first time the extremely high-resolution capabilities of VLT/ESPRESSO to retrieve wind velocities in Jupiter’s troposphere, with a dedicated ground-based Doppler velocimetry method ...
Pedro Machado   +5 more
doaj   +1 more source

Probing Ganymede’s Atmosphere with HST Lyα Images in Transit of Jupiter

open access: yesThe Planetary Science Journal, 2023
We report results from far-ultraviolet observations by the Hubble Space Telescope of Jupiter’s largest moon, Ganymede, transiting across the planet’s dayside hemisphere.
Lorenz Roth   +8 more
doaj   +1 more source

Numerical simulations help revealing the dynamics underneath the clouds of Jupiter

open access: yesNature Communications, 2020
Since its arrival at Jupiter in 2016, NASA’s Juno spacecraft has been performing high-precision measurement of the gravity and magnetic fields. When combined with numerical simulations, they provide a unique window to the dynamics in the planet’s deep ...
Johannes Wicht, Thomas Gastine
doaj   +1 more source

ON COLLISION OF SECONDARY NUCLEI OF COMET P/SHOEMAKER-LEVI 9 (1993E) WITH JUPITER

open access: yesOdessa Astronomical Publications, 2017
In July 1994 the comet P/Shoemaker-Levi which in July 1992 split in the Roche lobe of Jupiter onto 21 fragments, then collided with Jupiter at the altitude near – 45°.
K. I. Churyumov, V. G. Kruchinenko
doaj   +1 more source

Detection of Rubidium and Samarium in the Atmosphere of the Ultrahot Jupiter MASCARA-4b

open access: yesThe Astronomical Journal, 2023
Ultrahot Jupiters (UHJs) possess the most extreme environments among various types of exoplanets, making them ideal laboratories to study the chemical composition and kinetics properties of exoplanet atmosphere with high-resolution spectroscopy.
Zewen Jiang   +7 more
doaj   +1 more source

Mechanisms affecting the composition of Hot Jupiters atmospheres

open access: yesEPJ Web of Conferences, 2013
Opacities and thus local chemical composition play a key role when characterizing exoplanet atmospheres from observations. When the gas is in chemical equilibrium the chemical abundances depend strongly on the temperature profile.
Showman Adam P.   +2 more
doaj   +1 more source

CUTE Reveals Escaping Metals in the Upper Atmosphere of the Ultrahot Jupiter WASP-189b

open access: yesThe Astrophysical Journal Letters, 2023
Ultraviolet observations of ultrahot Jupiters, exoplanets with temperatures over 2000 K, provide us with an opportunity to investigate if and how atmospheric escape shapes their upper atmosphere. Near-ultraviolet transit spectroscopy offers a unique tool
A. G. Sreejith   +14 more
doaj   +1 more source

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