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VERSION:2.0
PRODID:-//linuxsoftware.nz//NONSGML Joyous v1.4//EN
BEGIN:VEVENT
SUMMARY:Detecting scalar fields with EMRIs: the effects of gravitational p
 ost-adiabatic corrections
DTSTART:20251009T143000Z
DTEND:20251009T160000Z
DTSTAMP:20260910T151807Z
UID:f6900e7e-4bf2-4a17-8384-59a78dfdca0c
SEQUENCE:2
CREATED:20251008T141111Z
DESCRIPTION:Asymmetric binaries\, i.e. compact binary systems with a large
  mass asymmetry\, such as Extreme Mass Ratio Inspirals (EMRIs)\, are key s
 ources for the future space detector LISA. Inspiralling around the central
  black hole (the primary)\, the smaller object (the secondary) generates g
 ravitational waves (GWs) that harbour the potential for precise tests of f
 undamental physics. In this talk\, I will focus on a model of asymmetric b
 inaries in theories of gravity with new fundamental scalar fields\, where 
 the primary scalar charge per unit mass is suppressed\, so that the backgr
 ound spacetime is simply described by the Kerr metric. Moreover\, at leadi
 ng - adiabatic - order in the binary mass ratio\, the imprint of the scala
 r field on the emitted waveform is fully captured by an extra parameter: t
 he scalar charge per unit mass carried by the secondary. I will show how t
 his parameter affects the emitted GWs and\, by analysing such signals\, I 
 will present the encouraging results on the LISA ability to detect the sca
 lar charge. Finally\, I will present the latest results arising from the i
 nclusion of post-adiabatic corrections in the gravitational sector\, and d
 iscuss their impact on the scalar field detectability.
LAST-MODIFIED:20251008T141148Z
LOCATION:DF Seminar Room (2-8.3)\, 2nd floor of Physics Building
URL:http://df.vps.tecnico.ulisboa.pt/pt/eventos/detecting-scalar-fields-wi
 th-emris-the-effects-of-gravitational-post-adiabatic-corrections/
X-ALT-DESC;FMTTYPE=text/html:<p data-block-key="n6va5">Asymmetric binaries
 \, i.e. compact binary systems with a large mass asymmetry\, such as Extre
 me Mass Ratio Inspirals (EMRIs)\, are key sources for the future space det
 ector LISA. Inspiralling around the central black hole (the primary)\, the
  smaller object (the secondary) generates gravitational waves (GWs) that h
 arbour the potential for precise tests of fundamental physics.<br/><br/> I
 n this talk\, I will focus on a model of asymmetric binaries in theories o
 f gravity with new fundamental scalar fields\, where the primary scalar ch
 arge per unit mass is suppressed\, so that the background spacetime is sim
 ply described by the Kerr metric.<br/><br/> Moreover\, at leading - adiaba
 tic - order in the binary mass ratio\, the imprint of the scalar field on 
 the emitted waveform is fully captured by an extra parameter: the scalar c
 harge per unit mass carried by the secondary. I will show how this paramet
 er affects the emitted GWs and\, by analysing such signals\, I will presen
 t the encouraging results on the LISA ability to detect the scalar charge.
  Finally\, I will present the latest results arising from the inclusion of
  post-adiabatic corrections in the gravitational sector\, and discuss thei
 r impact on the scalar field detectability.</p>
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