<div dir="ltr">Announcement of the next gravity-theory webinar:<br><br><b>Justin Ripley (DAMTP, Cambridge University) - "Computing the second order curvature perturbations of Kerr black holes"</b><br><b>Wed, May 5th @4pm</b><br><br>Abstract:<div><i>I will describe a formalism to compute the second order gravitational (vacuum) perturbations of Kerr black holes, a numerical code that implements that formalism, and example output from the code. To motivate this work, I will discuss several applications where going beyond linear perturbation theory may be necessary, including modeling the “ringdown” of (near extremal) Kerr black holes, modeling “black hole turbulence”, and the self-force problem. I will discuss what our current results have to say on those issues, and directions for future work.</i><br><br>Zoom link: <a href="https://uniroma1.zoom.us/j/81283707469?pwd=SzkyMk5jRm0xcEN3WE5MYVh1RVFtQT09">https://uniroma1.zoom.us/j/81283707469?pwd=SzkyMk5jRm0xcEN3WE5MYVh1RVFtQT09</a><br>ID meeting: 812 8370 7469<br>Passcode: 915450<br><br><div><br>-- <br>Paolo Pani <br>Associate Professor<br>ERC StG Fellow, DarkGRA project<br>Junior Fellow, Scuola Superiore di Studi Avanzati Sapienza<br><br>Physics Department (Marconi Building), 3rd floor, room 334<br>Sapienza University of Rome<br>Piazzale Aldo Moro 5 - 00185 Rome (Italy) <br>+39 06 4991 4472 (int 24472)</div></div></div>
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<img src="http://drive.google.com/uc?export=view&id=1D7YpvktctRYJU06PdbKxja4uJtuD4s3M"><br><div><div><font size="3" color="#000000">Fai crescere i nostri giovani ricercatori<br>dona il 5 per mille alla Sapienza</font></div><div><font size="3" color="#000000"><b>codice fiscale 80209930587</b></font></div></div>