Long-term project observations for project P456 semester 2025OCTS_17
Year: 2025
Type: dataset
Abstract: The Parkes Pulsar Timing Array (PPTA) project has three primary goals: (a) detection of gravitational waves from astronomical sources, (b) establishment of a pulsar timescale, and (c) improvement of our understanding of Solar-system dynamics. We are now in an exciting regime where a signal detected in our (and other data sets) has the form expected for a gravitational wave background. We, along with the international community, are now working hard to either confirm or deny this result, and to determine the astrophysical origin of this signal. With this proposal, we aim to maintain our pre-eminent position in the field. This is a continuing proposal for which observations of millisecond pulsars (MSPs) will continue to improve bounds on ultra-low-frequency gravitational waves until they are detected with confidence. Continued Parkes observations will remain valuable at least until the first stage of the SKA is able to improve on our sensitivity and observing cadence. Even after the gravitational wave background is detected, continued observations will resolve the background origin and individual sources will be identified; advancing the nascent field of gravitational wave astronomy.
Source: CSIRO
DOI: 10.25919/rbbz-mw14
Authors: Zic, Andrew, Manchester, Dick, Sarkissian, John, Hobbs, George, Bailes, Matthew, Bhat, Ramesh, Coles, William, van Straten, Willem, Russell, Chris, Oslowski, Stefan, Kerr, Matthew, Shannon, Ryan, Kaczmarek, Jane, Zhu, Xingjiang, Dai, Shi, Reardon, Daniel John, Zhang, Lei, Zhang, Songbo, Wang, Shuangqiang, Curylo, Malgorzata, Mandow, Rami, Liu, Xiaojin, Kapur, Agastya, Ling, Wenhua, Mishra, Saurav, Chen, Zu-Cheng, Di Marco, Valentina, Rożko, Karolina, Maciesiak, Kyzysztof, Gitika, Pratyasha, Kulkarni, Atharva, Cardinal Tremblay, Jacob
Institutions: Australia Telescope National Facility, Swinburne University of Technology, Curtin University, University of California San Diego, Auckland University of Technology, Commonwealth Scientific and Industrial Research Organisation, United States Naval Research Laboratory, Beijing Normal University, National Astronomical Observatories, Purple Mountain Observatory, Xinjiang Astronomical Observatory, Monash University, Macquarie University, Hunan Normal University, University of Zielona Góra, Max Planck Institute for Gravitational Physics
Language: English
Subfield: Astronomy and Astrophysics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W7125699461