Bulletin of the American Physical Society
APS April Meeting 2024
Wednesday–Saturday, April 3–6, 2024; Sacramento & Virtual
Session F02: NANOGrav: Updates from a Galactic-Scale Gravitational Wave Observatory
8:30 AM–10:18 AM,
Thursday, April 4, 2024
SAFE Credit Union Convention Center
Room: Ballroom A2-3, Floor 2
Sponsoring
Unit:
DGRAV
Chair: Sarah Vigeland, University of Wisconsin - Milwaukee
Abstract: F02.00001 : The NANOGrav 15 Year Data Set: Observing Program and Millisecond Pulsar Timing*
8:30 AM–9:06 AM
Presenter:
David J Nice
(Lafayette Coll)
Author:
David J Nice
(Lafayette Coll)
Collaboration:
NANOGrav
The NANOGrav 15-yr data set, incorporating data through 2020, includes observations of 68 pulsars, each observed for at least 2 years at Arecibo Observatory, the Green Bank Telescope and/or the Very Large Array. We used this data set to find evidence for a stochastic background of gravitational waves at nanohertz frequencies (as will be reported in other talks in this session).
Data collection has continued beyond 2020 using the Green Bank Telescope and the Very Large Array for monthly measurements and CHIME for daily measurements. We will continue to release data sets at regular intervals. In addition, we pool data from telescopes worldwide via the International Pulsar Timing Array (IPTA) collaboration.
In this talk, we will describe the observing program, the process of timing the pulsars, various ancillary studies made using these data sets, and prospects for new instrumentation for improved precision and observational efficiency.
*This work was supported by National Science Foundation Physics Frontiers Center grant 2020265.
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