The ring-down is due to the combined BH ringing down from oblate to spherical and rotateing while ringing. The wave contains most of the lost mass/energy. There likely was also EM energy radiated from the surrounding BH disks, but not observed here.
Bill\ NL7F On Sat, 13 Feb 2016 17:34:45 -0600, Bill Hawkins wrote: >IMHO, the decay seems backwards because we are watching the growth of >the event as the black holes approach each other, reaching a maximum at >collision. >Don't know why the signal drops off after the collision. May be because >gravity stops changing, or maybe because the resulting object left the >universe - well, not if mass and energy are conserved. Or did the wave >contain all of the radiated energy? >Disclaimer: My field of study was not physics. >Bill Hawkins >-----Original Message----- >From: Bob Stewart >Sent: Saturday, February 13, 2016 2:35 PM >Hi Tom, >Thanks for posting this. I'm looking at the timelab plot, and the only >thing I can relate that to is a musical note played backward. IOW, the >decay seems backwards to me. >Bob - AE6RV >_______________________________________________ >time-nuts mailing list -- time-nuts@febo.com >To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >and follow the instructions there. Bill Beam NL7F _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.