Results 31 to 40 of about 55,109 (308)

Constraints on Europa’s Water Group Torus from HST/COS Observations

open access: yesThe Planetary Science Journal, 2023
In situ plasma measurements as well as remote mapping of energetic neutral atoms around Jupiter provide indirect evidence that an enhancement of neutral gas is present near the orbit of the moon Europa.
Lorenz Roth   +10 more
doaj   +1 more source

New Constraints on the Composition of Jupiter from Galileo Measurements and Interior Models [PDF]

open access: yes, 1997
Using the helium abundance measured by Galileo in the atmosphere of Jupiter and interior models reproducing the observed external gravitational field, we derive new constraints on the composition and structure of the planet.
Anders   +32 more
core   +2 more sources

Atmospheric Circulation of Hot Jupiters [PDF]

open access: yesSymposium - International Astronomical Union, 2004
About 40% of the extrasolar giant planets discovered so far have orbital distances smaller than 0.2 AU. These “hot Jupiters” are expected to be in synchronous rotation with their star. The ability to measure their radii prompts a careful reexamination of their structure. I show that their atmospheric structure is complex and that thermal balance cannot
openaire   +1 more source

Enrichment of Jupiter’s Atmosphere by Late Planetesimal Bombardment [PDF]

open access: yesThe Astrophysical Journal Letters, 2022
Abstract Jupiter’s atmosphere is enriched with heavy elements by a factor of about 3 compared to a protosolar composition. The origin of this enrichment and whether it represents the bulk composition of the planetary envelope remain unknown.
Shibata, Sho, Helled, Ravit
openaire   +3 more sources

X-Ray Emission from Jupiter, Saturn, and Earth: A Short Review [PDF]

open access: yes, 2006
Jupiter, Saturn, and Earth - the three planets having dense atmosphere and a well developed magnetosphere - are known to emit X-rays. Recently, Chandra X-ray Observatory has observed X-rays from these planets, and XMM-Newton has observed them from ...
Bhardwaj, Anil
core   +2 more sources

The NIR transmission spectrum of Jupiter from the observation of a Ganymede’s eclipse

open access: yesEPJ Web of Conferences, 2015
Here, we report the NIR transmission spectrum of Jupiter, with high signal-to-noise ratio, as if it were a transiting planet. Our technique was to observe Ganymede, when crossing Jupiter’s shadow.
Montañés-Rodríguez P.   +4 more
doaj   +1 more source

Saturn's Exploration Beyond Cassini-Huygens [PDF]

open access: yes, 2009
For its beautiful rings, active atmosphere and mysterious magnetic field, Saturn is a fascinating planet. It also holds some of the keys to understanding the formation of our Solar System and the evolution of giant planets in general.
Atreya, Sushil   +4 more
core   +4 more sources

Research on Jupiter's magnetic field: Review and prospect

open access: yes地球与行星物理论评
The internal structure and dynamics of different planets are different, so some planets have an intrinsic magnetic field, and some have not yet found an intrinsic magnetic field.
Weidong Gu   +6 more
doaj   +1 more source

Detection of CO in the atmosphere of the hot Jupiter HD 189733b

open access: yesEPJ Web of Conferences, 2013
With time-series spectroscopic observations taken with the Near Infrared Spectrometer (NIRSPEC) at Keck II, we investigated the atmosphere of the close orbiting transiting extrasolar giant planet, HD 189733b.
Barnes John R.   +2 more
doaj   +1 more source

Enhancement of deuterated ethane on Jupiter [PDF]

open access: yes, 2001
We report laboratory measurements of cross sections of CH_3D and C_2H_5D in the extreme ultraviolet. The results are incorporated in a photochemical model for the deuterated hydrocarbons up to C_2 in the upper atmosphere of Jupiter, taking into account ...
Bahou, Mohammed   +5 more
core   +2 more sources

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