Two rare stars whipping around one another in a wide, wild tango have given astronomers a unique opportunity to study the gentle slap of light against their dusty skirts.
"It's hard to see starlight causing acceleration because the force fades with distance, and other forces quickly take over,""To witness acceleration at the level that it becomes measurable, the material needs to be reasonably close to the star or the source of the radiation pressure needs to be extra strong. WR 140 is a binary star whose ferocious radiation field supercharges these effects, placing them within reach of our high-precision data.
Animation showing how the WR 140 binary produces dust at periastron, as if observing the binary from above.
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