Probe “Rosetta” has suddenly captured the spectacular ejection of the substance from the surface of the comet, which may have been initiated by the landslide.
Nine tools for automatic space station “Rosetta”, including its camera, the device for collecting dust analyzers, gas and plasma, we monitored the comet from a distance of about 35 miles when there was a release of substances from the surface of the caudate guest from outer space which fell on February 19.
In the new work, conducted by a team of researchers led by Eberhard Gruen of the Institute for nuclear physics, max Planck society, Heidelberg, Germany, presented an analysis of the results of measurements of emissions of substances produced by instruments of the probe “Rosetta”, and the conclusions about the mechanism of formation of this release.
“From observations carried out with the help of tools of the apparatus “Rosetta”, we can understand that this ejection of matter occurred on the steep slope located on the surface of a greater share of the comet in the field of Atum,” said Eberhard.
The fact that this discharge started in a time when this area only appeared from the shadows, suggests that thermal stresses in the surface material caused the landslide, in which fresh water ice was open to direct sunlight. The ice immediately turned into a gas, creating a cloud of wreckage, which was recorded using the OSIRIS camera of the probe.