Tuesday, April 10, 2007

Hot Jupiters Are All Wet

Astronomers have detected water in the atmosphere of a planet outside our solar system for the first time.

The finding, to be detailed in an upcoming issue of Astrophysical Journal, confirms previous theories that say water vapor should be present in the atmospheres of nearly all the known extrasolar planets. Even hot Jupiters, gaseous planets that orbit closer to their stars than Mercury to our Sun, are thought to have water.

The discovery, announced today, means one of the most crucial elements for life as we know it can exist around planets orbiting other stars.

In contrast: here and here.

I really liked:

"Superposed on this continuum is a broad emission peak centered near 9.65 micron that we attribute to emission by silicate clouds."


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