The present status of research on the composition of planetary atmospheres is reviewed. It is shown that CO 2 is the major constituent in the atmospheres of Venus and Mars, and that H 2 is almost certainly the dominant constituent for the outer planets Jupiter, Saturn, Uranus, and Neptune. ...
Timothy Livengood is an observational planetary astronomer who studies the atmospheres of planetary bodies. He is currently working on projects studying the atmosphere of Mars and Jupiter as well as volatile gases on the moon. How and why might the composition of Mars's atmosphere change periodical...
O has changed significantly in composition over time O was as thick as Earth's mantle in its early stages O is very thin relative to Earth's size O caused the temperatures of Earth's early core and mantle to gradually increase Paragraph 5:The lightest materials of all, including gases such...
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. Grey models tend to overestimate the temperatures in the upper atmosphere....
these planets is well beyond current observational techniques, monitoring polarization fluctuations during high magnification events induced by binary microlensing events will probe the composition of the planetary atmospheres, an observation which otherwise is currently unattainable even for nearby planetary ...
Atmospheric Composition When sunlight reflects from the atmospheres of the giant planets, the atmospheric gases leave their “fingerprints” in the spectrum of light. Spectroscopic observations of the jovian planets began in the nineteenth century, but for a long time, astronomers were not able to ...
O has changed significantly in composition over time O was as thick as Earth's mantle in its early stages O is very thin relative to Earth's size O caused the temperatures of Earth's early core and mantle to gradually increase Paragraph 5:The lightest materials of all, including gases such...
►Why does the atmospheric greenhouse effect make the composition of Earth's atmosphere so different from that of Venus? The answer lies in Earth's location in the solar system.Considerearly Earth and early Venus, each having about the same mass, but with Venus orbiting somewhat closer to th...
►Why does the atmospheric greenhouse effect make the composition of Earth's atmosphere so different from that of Venus? The answer lies in Earth's location in the solar system.Considerearly Earth and early Venus, each having about the same mass, but with Venus orbiting somewhat closer to th...
promoting the fast formation of planetary cores. Across this particular radial location, called the ‘snowline’, grains can drastically change their drift and fragmentation velocity, composition and opacity. In synergy with vapour radial diffusion6, these physical discontinuities can lead to the accumula...