Probing Gravity with Spacetime Sirens

Details Probing Gravity with Spacetime Sirens Probing Gravity with Spacetime Sirens

2007-08-31

arxiv.org/abs/0709.0003v1

Astrophys.J.668:L143-L146,2007

Astronomy and Astrophysics

Astrophysics

11 pages, 1 figure, accepted for publication in ApJ Letters

Scientific paper

DOI:10.1086/522931

A gravitational observatory such as LISA will detect coalescing pairs of massive black holes, accurately measure their luminosity distance and help identify a host galaxy or an electromagnetic counterpart. If dark energy is a manifestation of modified gravity on large scales, gravitational waves from cosmologically-distant spacetime sirens are direct probes of this new physics. For example, a gravitational Hubble diagram based on black hole pair luminosity distances and host galaxy redshifts could reveal a large distance extra-dimensional leakage of gravity. Various additional signatures may be expected in a gravitational signal propagated over cosmological scales.

Affiliated with

Also associated with

No associations

Rating

Probing Gravity with Spacetime Sirens does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Probing Gravity with Spacetime Sirens, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Probing Gravity with Spacetime Sirens will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-195603