3 years ago

Gravitational wave echoes through new windows.

Jing Ren, Bob Holdom, Randy S. Conklin

There has been a striking realization that physics underlying the black hole information paradox could imply post-merger gravitational wave echoes. We here report on evidence for echoes in the form of tentative signals from four LIGO black hole merger events. For each event, the false-alarm probability is estimated to be less than 1%. Our study begins with the comparison of echoes from a variety of horizonless exotic compact objects. The identification of the more generic features then leads to the development of relatively simple windowing methods, in both time and frequency space, to extract a signal from noise. The time delay between echoes is the primary observable. Our findings from LIGO data point to time delays that are consistent with the deviations from the black hole geometry occurring at the Planck distance from the would-be horizon.

Publisher URL: http://arxiv.org/abs/1712.06517

DOI: arXiv:1712.06517v2

You might also like
Discover & Discuss Important Research

Keeping up-to-date with research can feel impossible, with papers being published faster than you'll ever be able to read them. That's where Researcher comes in: we're simplifying discovery and making important discussions happen. With over 19,000 sources, including peer-reviewed journals, preprints, blogs, universities, podcasts and Live events across 10 research areas, you'll never miss what's important to you. It's like social media, but better. Oh, and we should mention - it's free.

  • Download from Google Play
  • Download from App Store
  • Download from AppInChina

Researcher displays publicly available abstracts and doesn’t host any full article content. If the content is open access, we will direct clicks from the abstracts to the publisher website and display the PDF copy on our platform. Clicks to view the full text will be directed to the publisher website, where only users with subscriptions or access through their institution are able to view the full article.