NANOGrav's 15-Year Data Release

Artist Rendering of a Pulsar Timing Array with a Gravitational Wave Background

Artist’s interpretation of an array of pulsars being affected by gravitational ripples produced by a supermassive black hole binary in a distant galaxy. Credit: Aurore Simonnet for the NANOGrav Collaboration

Public Briefing

On Thursday, June 29th of 2023, we invited all interested members of the public to watch our public briefing live! The announcement reported the results of the analysis of NANOGrav’s 15-year data set, and interpretations of those results.

You can watch the announcement and the following Q&A session with our panelists on YouTube or via the embedded link below!

Briefing Panelists

Dr. Stephen Taylor NANOGrav Chair 15-year GWB Paper co-lead Assistant Professor, Vanderbilt University	Dr. Thankful Cromartie Timing Working Group Chair 15-year Timing Paper co-author Einstein Postdoctoral Fellow, Cornell University
Dr. Michael Lam Noise Budget Working Group co-Chair 15-year Detector Paper co-author Research Scientist, SETI Institute	Dr. Luke Kelley Astrophysics Working Group Chair 15-year Astrophysics Paper lead Assistant Adjunct Professor, University of California Berkeley
Dr. Maura McLaughlin NANOGrav Physics Frontiers Center Co-Director International Pulsar Timing Array Steering Committee Member Eberly Distinguished Professor of Physics and Astronomy, West Virginia University

Official Press Release

Astrophysicists using large radio telescopes to observe a collection of cosmic clocks in our Galaxy have found evidence for gravitational waves that oscillate with periods of years to decades, according to a set of papers published today in The Astrophysical Journal Letters.

Read Now ...

Publication Summaries

In order to ensure that this scientific milestone is as accessible as possible, our collaboration has created a series of short, plain-language summaries for our seminal publications! These cover everything from specifics about our data products, the details of the evidence we have uncovered, and how we are probing new scientific frontiers.

Start Exploring ...

Special Edition of ApJ Letters

Cover of the Astrophysical Journal Letters.

Now that our papers are published, you can check out NANOGrav’s focus issue of The Astrophysical Journal Letters where all our 15-year analysis results are being collected. This issue will continue to be updated over the next few months as we examine the various cosmic insights our data may reveal.

Delve In ...