Some of the most intersting discoveries happen by accident. Click the link to find out more.
Nature Astronomywhen he was trying to study a star with three possible protoplanets around it. Suddenly, Currie ran into a problem. “For whatever reason, our instrument couldn’t lock onto the star well,” he explains. “That was my primary plan for the night, so I had to come up with another plan — immediately.”He needed to collect some observations, though it didn’t much matter what star system they were from. So he went looking for an alternate.
Apart from a multi-spiral disk around AB Aurigae, Currie also noted a bright, peculiar blob due south of the star. He figured it was just a distorted piece of the disk, yet he and his colleagues found it in another dataset. Currie’s team then found evidence thatCurrie noticed an unusual blob on AB Aurigae that led him to a surprising finding.
Nor is it just any protoplanet. Aside from being the youngest one found to date, it’s unusually far from its parent star — a full 93. This is the first chance scientists have had to probe a protoplanet still embedded in the gas and dust from which it formed, he explains, and provides evidence for a controversial theory of gas giant planet formation called disk instability.
the disk instability theory in 1997. During his thesis at the University of California, Santa Barbara, he wrote models that track the collapse of clouds of gas and dust as they form star systems. Boss hoped to understand how protoplanetary disks evolved. But when he ran the models, he found some systems formed spiral arms massive enough to collapse into themselves. “I wasn’t trying to find another way to make a planet,” he explains, “but I stumbled on it.
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