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VERSION:2.0
PRODID:-//linuxsoftware.nz//NONSGML Joyous v1.4//EN
BEGIN:VEVENT
SUMMARY:Inference with core-collapse supernova waveforms
DTSTART:20211216T143000Z
DTEND:20211216T160000Z
DTSTAMP:20260626T095148Z
UID:1d9d3966-a309-4f10-9289-f636a0de3cf8
SEQUENCE:2
CREATED:20211210T145644Z
DESCRIPTION:Parameter estimation of core-collapse supernovae (CCSN) is cha
 llenged by the unmodeled nature of postbounce gravitational waveforms and 
 by the intrinsic difficulties involved in the modeling of explosions of ma
 ssive stars. Asteroseismology of proto-neutron stars (PNS) may offer a pro
 mising approach to do so. Numerical simulations of CCSN show that g-modes 
 are commonly excited in PNS and they are responsible for a significant fra
 ction of the gravitational-wave signal produced by most (i.e. neutrino-dri
 ven) supernova explosions. The time-frequency evolution of those modes is 
 linked to the physical properties of the PNS through quasi-universal relat
 ions. This talk discusses recent work aimed at inferring PNS properties th
 rough the analysis of its modes of oscillation and the gravitational waves
  they trigger. Observational constraints of our findings for current and t
 hird-generation gravitational-wave detectors are reported. In the last par
 t of the talk we will also cover recent results for the rather specific ca
 se of rapidly-rotating CCSN.
LAST-MODIFIED:20211216T085805Z
LOCATION:Sala de Formação Avançada\, 2-8.11\,  Pavilhão de Física\, 2
 º piso
URL:http://df.vps.tecnico.ulisboa.pt/pt/eventos/inference-with-core-collap
 se-supernova-waveforms/
X-ALT-DESC;FMTTYPE=text/html:<p data-block-key="q41rr">Parameter estimatio
 n of core-collapse supernovae (CCSN) is challenged by the unmodeled nature
  of postbounce gravitational waveforms and by the intrinsic difficulties i
 nvolved in the modeling of explosions of massive stars. Asteroseismology o
 f proto-neutron stars (PNS) may offer a promising approach to do so. Numer
 ical simulations of CCSN show that g-modes are commonly excited in PNS and
  they are responsible for a significant fraction of the gravitational-wave
  signal produced by most (i.e. neutrino-driven) supernova explosions. The 
 time-frequency evolution of those modes is linked to the physical properti
 es of the PNS through quasi-universal relations. This talk discusses recen
 t work aimed at inferring PNS properties through the analysis of its modes
  of oscillation and the gravitational waves they trigger. Observational co
 nstraints of our findings for current and third-generation gravitational-w
 ave detectors are reported. In the last part of the talk we will also cove
 r recent results for the rather specific case of rapidly-rotating CCSN.</p
 >
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