Dancing Black Holes

[astroron]

Dancing Black Holes found in the Virgo galaxy cluster.
http://news.bbc.co.uk/2/hi/science/nature/7924414.stm

[Paddy]

The momentum of each of these would be phenomenal!

[Paddy]

"The black holes are separated by an estimated distance of less than a third of a light-year - cheek-to-cheek by black hole standards and significantly more than the postulated binary system spotted by the Chandra X-ray Observatory in 2003.
The pair are estimated to dance around one another every 100 years"

3.142 x .33 light years would suggest an orbit of about 1 ly - so sounds like they are going at c/100! Is my arithmetic right? If so, the mind truly boggles.

[astroron]

Yes, it looks like they have got a bit of a move on:eyepop: