Extrasolar Giant Planets and Brown Dwarfs

Article Abstract:

Brown dwarfs are thought to be substellar objects of less than ~0.08 M. These objects remain officially undetected, leaving their existence in doubt. Researchers are getting closer to confirming their existence as direct photometric and spectroscopic measurements become possible with new technologies.

Statistical Data Included, Research, Stars, Brown dwarfs

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The loss of atmosphere from Mars

Article Abstract:

Calculations of the CO2 lost from Martian atmosphere through sputtering decreased from 3 bars to 1 bar when newly calculated cross sections were employed. However, the results did not decrease to the level of previous estimates of about 0.1 bars.

Mars (Planet), Martian atmosphere

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Atmospheric dynamics on the outer planets

Article Abstract:

Jupiter and the other outer planets have a strongly zonal atmospheric flow complicated by dynamic jets and eddies. Researchers have developed an idealized mathematical model that captures the features of these circulations.

Models, Environmental aspects, Atmospheric circulation, Outer planets

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