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The document, Black Hole Entropy and Soft Hair, discusses the mystery of the border around black holes – and the 'information paradox' of what happens when something falls.
Many of Hawking's articles dealt with the thorny question of what happens to all the information that disappears into a black hole.
One of the fundamental principles of physics is that information can never be completely erased from the universe.
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Co-author Malcolm Perry said the information paradox has been "at the center of Hawking's life" for more than 40 years.
Perry said, "We still do not have the technology to check Stephen Hawking's great ideas. The difficulty is that if you throw something in a black hole, it seems that it disappears.
"How could the information contained in this object be recovered if the black hole disappears on its own?"
The new article suggests that objects thrown into a black hole can change its temperature – and its "entropy," a measure of its internal disorder.
This "entropy" can be recorded by light particles on the event horizon, called "soft hair".
Perry said, "This document shows that" soft hair "can explain entropy. That tells you that soft hair really does the good job. "
Hawking died in March at the age of 76.
Ravaged by the motor neuron disease that he had contracted at the age of 21, Hawking was confined to a wheelchair for most of his life.
But his work, including the book A Brief History of Time, which has sold nine million books, has made it one of the most recognizable scientists on the planet.
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