As LIGO increases its sensitivity it is entering a domain in which its instruments should be able to detect theorized ring down phase echoes (this is the very last portion of a merging event of massive bodies that produces a rapidly increasing frequency of waves that lead up to the moment of merging, as the two merging objects undergo a final increasingly tight cycle of rapidly narrowing orbits right before merging) This increased sensitivity shouldd enable it to discoverif these hypothetical echoes if they actually are being produced by the observed event. If such echoes are discovered in these signals that would have major implications for cosmology and would be evidence for the actual existence of wormholes in our universe. Quoting some selected paragraphs, from a Scientific American article: "When two wormholes collide, they could produce ripples in space-time that ricochet off themselves. Future instruments could detect these gravitational “echoes,” providing evidence that these hypothetical tunnels through space-time actually exist, a new paper suggests.... To resolve this so-called black hole information paradox, some physicists have suggested that event horizons don’t exist. Instead of abysses from which nothing can return, black holes actually could be a host of speculative black-hole-like objects that lack event horizons, such as boson stars, gravastars, fuzzballs and even wormholes, which were theorized by Albert Einstein and physicist Nathan Rosen decades ago. .... In a 2016 study in the journal Physical Review Letters, physicists hypothesized that if two wormholes collided, they would produce gravitational waves very similar to those generated from merging black holes. The only difference in the signal would be in the last phase of the merger, called the ringdown, when the newly combined black hole or wormhole relaxes into its final state....
In the paper, published in January in the journal Physical Review D, the team of physicists from Belgium and Spain analyzed wormholes that rotate, which are more realistic than the non-spinning variety studied in the 2016 work. They calculated what the resulting gravitational-wave signal would look like if the wormholes merged. Because the strength of the signal drops during the ringdown, that section of the signal would be too weak for LIGO’s current configuration to detect. But that could change in the future, as researchers continue to upgrade and fine-tune the instrument, the researchers said. “By the time we are running at full design sensitivity, I believe it may be possible to resolve the ringdown phase where these echoes are predicted to be,” said Stuver, who’s also a member of the LIGO team." -- You received this message because you are subscribed to the Google Groups "Everything List" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/d/optout.
