Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aas...211.4901o&link_type=abstract
American Astronomical Society, AAS Meeting #211, #49.01; Bulletin of the American Astronomical Society, Vol. 39, p.810
Astronomy and Astrophysics
Astronomy
Scientific paper
The present-day rate of binary compact object mergers in the local universe has the potential to be observed in the near future, either by inference from the local short GRB rate density or, more likely, by direct measurement via ground-based gravitational wave detectors. In fact, LIGO's next science run in late 2008 is planned to be sensitive to double neutron star mergers out to roughly 30 Mpc; this high sensitivity suggests a better than 10% chance of detecting a binary compact object merger. However, the present-day binary compact object merger rate and thus the significance of any upper limit or detection depends on an uncertain merger-weighted integrated star formation history of each component of the universe. In this poster, we describe several methods that propagate measurements of and (functional) uncertainties in existing measurements of past star formation rate history into compact object merger rate predictions. We briefly summarize how these uncertainties influence the interpretation of LIGO upper limits on or detections of binary mergers.
Hanna Chad
Kopparapu Ravi
O'Shaughnessy Richard
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