Physics
Scientific paper
Apr 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009atnf.prop.2202b&link_type=abstract
ATNF proposal V275, Semester: April, 2009
Physics
Extragalactic, Lba
Scientific paper
Ubiquitous supermassive binary black holes at the centre of galaxies are a unique prediction of the hierarchical merging scenario of galaxy formation, and are the main source of gravitational waves and a gravitational wave background that are targeted by experiments such as the Parkes Pulsar Timing Array (PPTA) and LISA. However, significant uncertainties in binary black hole evolution models raise the question as to whether coalescence is possible, and furthermore whether such systems will ever evolve to a gravitational wave emitting regime. There is currently only one known binary supermassive system within a black hole separation of ~1kpc, and there is high potential for testing hierarchy models and post-merger dynamics if the (currently unknown) population of binary black holes can be explored. This survey, currently underway, implements a new method in binary black hole detection which will be sensitive to black holes throughout most of their post-merger evolution. The results of this work will have high impact on both pulsar timing experiments and models of galaxy and supermassive black hole formation and evolution.
Amy Shaun
Bailes Matthew
Burke-Spolaor Sarah
Ekers Ron
Lovell Jim
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