University of Cambridge > Talks.cam > DAMTP Friday GR Seminar > The Astrometric Effect of Gravitational Waves

The Astrometric Effect of Gravitational Waves

Add to your list(s) Download to your calendar using vCal

If you have a question about this talk, please contact Michalis Agathos.

A gravitational wave incident on the Earth causes the apparent positions of distant objects (e.g. stars!) to change periodically. The GAIA spacecraft is currently measuring the positions of a billion stars with accuracies down to several tens of microarcseconds. Therefore the finalised GAIA data release will offer a new opportunity to search for low frequency gravitational waves in the range (1.0e-8 – 3.0e-7) Hz. I will discuss some of the challenges of searching for gravitational waves in large astrometric datasets, and the sensitivity which can be achieved with the GAIA dataset. I will also discuss the interesting effects that a gravitational wave burst with memory can have on the apparent positions of distant objects.

This talk is part of the DAMTP Friday GR Seminar series.

Tell a friend about this talk:

This talk is included in these lists:

Note that ex-directory lists are not shown.

 

© 2006-2019 Talks.cam, University of Cambridge. Contact Us | Help and Documentation | Privacy and Publicity