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Parkes observations for project P895 semester 2017APRS
Since the year 2005, the Parkes Pulsar Timing Array (PPTA) project has been placing ever more stringent constraints on the amplitude of a gravitational wave background signal. Our most recent constraints rule out the standard models for galaxy formation and black hole evolution. It is essential for the PPTA project, its Northern Hemisphere counte... morerparts and key science projects on MeerKAT and the SKA to know the amplitude of the expected gravitational wave signal. We therefore propose to observe our most precisely timed pulsar, PSR J1909-3744, regularly in order to either obtain the lowest bound possible before MeerKAT and the SKA are commissioned or to identify the characteristic gravitational wave signal in the data set for this single pulsar. less
Astronomical and Space Sciences not elsewhere classified
01 Apr 2017
30 Sep 2017
Creative Commons Attribution 4.0 International Licence
Hobbs, George; Manchester, Dick; Sarkissian, John; Bailes, Matthew; Bhat, Ramesh; Keith, Michael; Coles, William; van Straten, Willem; Toomey, Lawrence; You, xiaopeng; Ravi, Vikram; Oslowski, Stefan; Kerr, Matthew; Dempsey, James; Shannon, Ryan; Wang, Jingbo; Levin, Yuri; Wen, Linqing; Zhu, Xingjiang; Dai, Shi; Lasky, Paul; Burke, Sarah; Reardon, Daniel John; Rosado, Pablo (2017): Parkes observations for project P895 semester 2017APRS. v1. CSIRO. Data Collection.
All Rights (including copyright) CSIRO 2017.
The metadata and files (if any) are available to the public.
Australia Telescope National Facility
P895 - Where are the gravitational waves?
Einstein’s theory of general relativity predicts that supermassive binary black holes will produce waves in space and time that are known as gravitational waves. With the observations carried out for this project we aim to carry out the most sensitive search yet undertaken for such waves. We expect that before the year 2017 we will either have ev... moreidence for such waves or placed such stringent constraints that our understanding of galaxy evolution and cosmology will need a significant change. For this project we will observe one pulsar, PSR J1909-3744, which is the most precisely observed pulsar. To date we can predict the arrival times of pulses from this pulsar to better than 100ns and we’re using this exquisite precision to search for the elusive waves. less
Willem van Straten
Daniel John Reardon