An all-sky map of half a million supermassive black holes

The Black Hole Mapper reaches a milestone with its first southern hemisphere optical observations, coordinated eROSITA X-ray identification, and multi-epoch tracking of accreting black holes across the universe.
180 points by MarcoDewey 75 days ago www.sdss.org 40 comments

Summary

A new milestone in black hole research has been achieved with the Black Hole Mapper’s first optical observations from the southern hemisphere. This project combines X-ray identification and tracking of accreting supermassive black holes, shedding light on their distribution across the universe.

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