ITMP Seminar "Disforming the Kerr metric"

Dear Colleagues,

We are pleased to announce that the next internal ITMP seminar will be held on Wednesday, Dec 1, at 18:00 (Moscow time). It will take place in ITMP, in person, room Г-725. It will be also possible to participate online via zoom

Speaker: Dr. Timothy Anson, ITMP

Title: Disforming the Kerr metric

Abstract: Starting from a recently constructed stealth Kerr solution of higher order scalar tensor theory, I will present disformal versions of the Kerr spacetime with a constant disformal factor and a regular scalar field. While the disformed metric has only a ring singularity and asymptotically is quite similar to Kerr, it is neither Ricci-flat nor circular. Non-circularity has far reaching consequences on the structure of the solution. In particular, I will discuss the properties of important hypersurfaces in the disformed spacetime: ergosphere, stationary limit and event horizon, and highlight the differences with the Kerr metric. I will also mention experimental signatures of these spacetimes.

If you want to join the seminar please register here before 14:00, December 1 here.

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