[astroseminar at Sapienza] Gravity-theory seminar: Wed 26/10 at 1pm in Cortini: Swetha Bhagwat (Birmingham U.) "The importance of using amplitudes and phases in ringdown to test GR"

[Paolo Pani]

Dear everyone,

Next week we will have Swetha Bhagwat visiting and giving a seminar. Please
find information below (note the unusual time and location). I also remind
you Gianfranco Bertone's INFN theory seminar tomorrow:
https://agenda.infn.it/event/32753/

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*Speaker: *Swetha Bhagwat (Birmingham U.)
*Title: *The importance of using amplitudes and phases in ringdown to test
GR

*Date:*  Wednesday, October 26th at 1pm CEST
*Location:* Cortini Hall (Fermi building)


*Abstract:  *
When two black holes merge to form a remnant black hole, they emit a signal
called ringdown. Ringdown comprises of the excitation of characteristic
modes of remnant black hole a.k.a, Quasinormal modes (QNM) and serves as a
powerful probe to test our understanding of strong field gravity around
black holes. These tests have traditionally relied on extracting QNM
frequencies and damping times. While this is powerful, the excitation
amplitudes of QNM also carry vital information about strong-field gravity
dynamics. I will specifically talk about two tests that we proposed
recently on how we could use amplitude and phase information -- the
amplitude-ratio phase test and the merger ringdown test.
%%%%

Best,
Paolo


-- 
Paolo Pani
Associate Professor
ERC StG Fellow, DarkGRA project
Junior Fellow, Scuola Superiore di Studi Avanzati Sapienza

Physics Department (Marconi Building), 3rd floor, room 334
Sapienza University of Rome
Piazzale Aldo Moro 5 - 00185 Rome (Italy)
+39 06 4991 4472 (int 24472)
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