Can vortex rings travel at supersonic speeds?

[solaris123]

After a bit of searching of scholarly text and investigations I have found myself unable to find the next piece of information.
Can there exist a vortex ring which travels at supersonic speeds? Not as in the airflow within the vortex ring, there was a paper I was able to acquire about that particular situation, but rather the vortex ring itself as it moves throught the air. I'm currently interested in this because I am studying the detonation of fuel-air mixtures vortex rings and I wanted to know if they could result in a supersonic ring.

 

[Valerie Park]

It is possible for a vortex ring to travel at supersonic speeds. This has been observed in various experiments involving the detonation of combustible gases, such as hydrogen and methane. However, the exact speed of the vortex ring is dependent on the initial conditions of the gas mixture, as well as the subsequent shockwave interactions with the surrounding atmosphere. Additionally, the structure of the vortex ring can be altered by the shockwave, resulting in a different shape and motion than expected. For these reasons, it is difficult to predict exactly how fast a vortex ring can travel.