Wydarzenia

Dnia 2026-11-03 o godzinie 13:15 w sali 2011 Wydziału Fizyki UwB, odbędzie się seminarium na którym mgr inż. Sudhagar Suyamprakasam, z Zakładu Astrofizyki II Centrum Astronomicznego im. Mikołaja Kopernika Polskiej Akademii Naukwygłosi wykład pt

Impact of Gravitational Lensing on Long-Duration Gravitational-Wave Signals.

Serdecznie zapraszamy

Tomasz Karpiuk

Andrzej Maziewski

Impact of Gravitational Lensing on Long-Duration Gravitational-Wave Signals.

mgr inż. Sudhagar Suyamprakas

Zakład Astrofizyki II Centrum Astronomicznego im. Mikołaja Kopernika Polskiej Akademii Nauk

The LIGO/Virgo/KAGRA (LVK) collaboration has discovered nearly four hundred binary mergers since 2015; however, binary mergers are not the exclusive sources of gravitational waves. Asymmetric rotating neutron stars and planetary or asteroid mass-primordial BH (PBH) binaries during their in-spiral phase also emit quasi-monochromatic, long-duration gravitational waves. Detecting signals from these sources requires longer observation times because their amplitudes are low relative to detector sensitivities; thus far, their detection has not been confirmed. Suppose the massive object lies in the line of sight; the signal can undergo gravitational lensing. This presentation provides a brief overview of long-duration gravitational-wave signals and examines how gravitational lensing affects their observed signatures.