black hole X-ray tagged posts

Search reveals Eight new Sources of Black Hole Echoes

Caption:In this illustration, a black hole pulls material off a neighboring star and into an accretion disk.
Credits:Credit: Aurore Simonnet and NASA’s Goddard Space Flight Center

Astronomers discovered eight new echoing black hole binaries in our galaxy, enabling them to piece together a general picture of how a black hole evolves during an outburst. The findings will help scientists trace a black hole’s evolution as it feeds on stellar material.

Scattered across our Milky Way galaxy are tens of millions of black holes — immensely strong gravitational wells of spacetime, from which infalling matter, and even light, can never escape. Black holes are dark by definition, except on the rare occasions when they feed...

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