Bulletin of the American Physical Society
APS April Meeting 2023
Volume 68, Number 6
Minneapolis, Minnesota (Apr 15-18)
Virtual (Apr 24-26); Time Zone: Central Time
Session H04: NANOGrav: Updates From A Galactic-scale Gravitational Wave ObservatoryInvited
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Sponsoring Units: DGRAV Chair: Jeffrey Hazboun, Oregon State University Room: MG Salon C - 3rd Floor |
Sunday, April 16, 2023 1:30PM - 2:06PM |
H04.00001: An Update on NANOGrav's Growing Pulsar Timing Data Set Invited Speaker: H. Thankful Cromartie The North American Nanohertz Observatory for Gravitational Waves (NANOGrav) collaboration has finalized its 15-Year Data Release, marking an exciting milestone for pulsar timing arrays and low-frequency gravitational wave detection. Since the publication of our 12.5-year data release, which strongly suggested the presence of a common red noise process in NANOGrav's millisecond pulsar (MSP) timing data, we have added 21 new MSPs and 3 years of data. This expansion will not only improve our gravitational wave background sensitivity, but will also necessitate the creation of a purpose-built pipeline based on modern pulsar timing software. This talk will touch on the improvements between our 12.5 and 15-year data releases, the development of our pipeline, the evolution of our observing program, and exciting synergistic science results. NANOGrav's participation in the International Pulsar Timing Array's Third Data Release effort, as well as what lies on the horizon for pulsar timing array experiments, will also be discussed. |
Sunday, April 16, 2023 2:06PM - 2:42PM |
H04.00002: Highlight's from NANOGrav's Search for Low-Frequency Gravitational Waves Invited Speaker: Joseph Simon The North American Nanohertz Observatory for Gravitational Waves (NANOGrav) is a galactic-scale low-frequency gravitational wave observatory. Our long-term high precision timing of almost 80 millisecond pulsars (MSPs) provides for unprecedented sensitivity to the gravitational wave Universe at nHz-frequencies. As we continue our timing campaign into its third decade and consistently add newly discovered MSPs to our array, our ever increasing data volume requires the constant development of new analysis techniques. In this talk, I will discuss the current state-of-the-art detection approaches to searching for a gravitational wave signature in NANOGrav data, and present recent results from applying these methods to our data sets. |
Sunday, April 16, 2023 2:42PM - 3:18PM |
H04.00003: Astrophysics from nHz Gravitational Waves Invited Speaker: Luke Z Kelley
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