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Apr 13, 2020

Astronomers measure wind speed on a brown dwarf

Posted by in category: space

Astronomers have used the National Science Foundation’s Karl G. Jansky Very Large Array (VLA) and NASA’s Spitzer Space Telescope to make the first measurement of wind speed on a brown dwarf—an object intermediate in mass between a planet and a star.

Based on facts known about the giant planets Jupiter and Saturn in our own Solar System, a team of scientists led by Katelyn Allers of Bucknell University realized that they possibly could measure a brown dwarf’s speed by combining radio observations from the VLA and from Spitzer.

“When we realized this, we were surprised that no one else had already done it,” Allers said.

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