CENTRA Seminar - Astrometric detection of gravitational waves with Gaia - 8 junho 2017

Fóruns: 

 

Astrometric detection of gravitational waves with Gaia

Chris Moore

Cambridge

 

Abstract / Resumo 

A gravitational wave (GW) causes the apparent positions of distant stars to oscillate with a characteristic pattern on the sky. Astrometric measurements of stellar positions (e.g. those made by Gaia) provide a new opportunity to search for low frequency GWs; e.g. from supermassive black hole binaries in the late stages of inspiral and merger. I will describe how such an astrometric search for GWs can be performed, drawing a comparison with pulsar timing searches, and quantify the sensitivity achievable with Gaia to several sources of astrophysical interest.
 
 
 
8 de junho de 2017 | 14:30
 

 

Local
Seminar room Physics Department
 
 

CENTRA Seminars