PTI Jan 4, 2013, 07.22AM IST
(For the first time, scientists…)
LONDON: For the first time, scientists have observed the birth of two giant planets emitting gas as they orbit their parent star.
Seen by Earth's largest radio telescope, Atacama Large Millimetre /submillimeter Array in Chile's Atacama desert, vast streams of gas flowing through a gap in a disc of material around a young star seem to support theories of how the planets grow.
Vast streams of gas are flowing across a gap in the disc of material around a young star, The European Southern Observatory (ESO) said.
Astronomers studied the young star HD 142527, over 450 light-years from Earth, which is surrounded by a disc of gas and cosmic dust. The dusty disc is divided into an inner and an outer part by a gap, which is thought to have been carved by newly forming gas giant planets clearing out their orbits as they circle the star.
According to theory, the giant planets grow by capturing gas from the outer disc, in streams that form bridges across the gap in the disc. "Astronomers have been predicting that these streams must exist, but this is the first time we have been able to see them directly ," said Simon Casassus, who led the study.
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