Research articles

search articles

My Pages

Stat

Members: 3645
Articles: 2'500'096
Articles rated: 2609

19 April 2024

» arxiv » 1509.7320

Article overview

Gravitational waves from binary supermassive black holes missing in pulsar observations
R. M. Shannon ; V. Ravi ; L. T. Lentati ; P. D. Lasky ; G. Hobbs ; M. Kerr ; R. N. Manchester ; W. A. Coles ; Y. Levin ; M. Bailes ; N. D. R. Bhat ; S. Burke-Spolaor ; S. Dai ; M. J. Keith ; S. Osłowski ; D. J. Reardon ; W. van Straten ; L. Toomey ; J.-B. Wang ; L. Wen ; J. S. B. Wyithe ; X.-J. Zhu ;
Date:	24 Sep 2015
Abstract:	Gravitational waves are expected to be radiated by supermassive black hole binaries formed during galaxy mergers. A stochastic superposition of gravitational waves from all such binary systems will modulate the arrival times of pulses from radio pulsars. Using observations of millisecond pulsars obtained with the Parkes radio telescope, we constrain the characteristic amplitude of this background, $A_{ m c,yr}$, to be < $1.0 imes10^{-15}$ with 95% confidence. This limit excludes predicted ranges for $A_{ m c,yr}$ from current models with 91-99.7% probability. We conclude that binary evolution is either stalled or dramatically accelerated by galactic-center environments, and that higher-cadence and shorter-wavelength observations would result in an increased sensitivity to gravitational waves.
Source:	arXiv, 1509.7320
Services:	Forum \| Review \| PDF \| Favorites

No review found.

Did you like this article?

This article or document is ...
important:
of broad interest:
readable:
new:
correct:
Global appreciation:

Note: answers to reviews or questions about the article must be posted in the forum section.
Authors are not allowed to review their own article. They can use the forum section.

browser claudebot

ScienXe.org
» my Online CV
» Free

News, job offers and information for researchers and scientists:

home

contact

sitemap