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Contact: Francis Reddy
NASA/Goddard Space Flight Center

Periodic X-Ray Emission From V1647 Ori

Caption: Periodic X-ray emission (yellow line) from V1647 Ori is best explained as the combined X-ray output of a pair of hot spots (green and red lines) located on opposite sides of the star. Both of the spots are about the size of the sun, but the southern spot is producing more X-rays. Illustrations across the top show how the changing orientation of the spots correlates to the star's X-ray emission. Crosses indicate the actual X-ray data points.

Credit: NASA's Goddard Space Flight Center

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