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Home Space Astronomy

Taking a peak inside a planetary womb

Mihai Andrei by Mihai Andrei
March 1, 2013
in Astronomy
Reading Time: 2 mins read
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Astronomers using ESO’s Very Large Telescope have obtained what is likely the first direct observation of a forming planet still embedded in a thick disc of gas and dust. If the finding is confirmed, it could significantly boost what we already know about forming planets.

protoplanet

An international team led by Sascha Quanz (ETH Zurich, Switzerland) has studied the disc of gas and dust that surrounds the young star that goes by the name of HD 100546, located some 330 light years from Earth. They were surprised to see that, from their original observations, it appears that the planet is in its initial stages of formation – an event not captured by astronomers so far.

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“So far, planet formation has mostly been a topic tackled by computer simulations,” says Sascha Quanz. “If our discovery is indeed a forming planet, then for the first time scientists will be able to study the planet formation process and the interaction of a forming planet and its natal environment empirically at a very early stage.”

Initially, they just noticed a faint blob in the outer regions of the system, about 60 times further out from its star than the Earth is to the Sun. According to current theory, giant planets grow by capturing some of the gas and dust that remains after the formation of a star, and so far, astronomers have captured a few ideas that support this theory. Structures in the dusty circumstellar disc, which could be caused by interactions between the planet and the disc, were revealed close to the detected protoplanet. This discovery has many astronomers jumping around at the unique chance presented to them. Adam Amara, another member of the team, is one of them:

“Exoplanet research is one of the most exciting new frontiers in astronomy, and direct imaging of planets is still a new field, greatly benefiting from recent improvements in instruments and data analysis methods. In this research we used data analysis techniques developed for cosmological research, showing that cross-fertilisation of ideas between fields can lead to extraordinary progress.”

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Mihai Andrei

Mihai Andrei

Andrei's background is in geophysics, and he's been fascinated by it ever since he was a child. Feeling that there is a gap between scientists and the general audience, he started ZME Science -- and the results are what you see today.

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