Wednesday, March 4, 2009

47 Tucanae (Pulsar Music)

"This beautiful globular cluster harbours 22 millisecond pulsars with periods between 2 and 8 ms. Many of them have a binary companion. We can estimate that hundreds more of these objects are in the cluster, but they may be too weak to be detected.

The first sound file
is a sequence of 16 of the known millisecond pulsars followed by them all played together.

The second file
is a sequence of the pulsar sounds as they fade due to intensity variation caused by interstellar scintillation."

Absolutely mesmerizing.