Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
2010-08-03
Mon.Not.Roy.Astron.Soc.409:L132-L136,2010
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
accepted for publication in MNRAS letters
Scientific paper
10.1111/j.1745-3933.2010.00965.x
The upper limit on the energy density of a stochastic gravitational wave (GW) background obtained from the two-year science run (S5) of the Laser Interferometer Gravitational-wave Observatory (LIGO) is used to constrain the average GW production of core collapse supernovae (ccSNe). We assume that the ccSNe rate tracks the star formation history of the universe and show that the stochastic background energy density depends only weakly on the assumed average source spectrum. Using the ccSNe rate for $z\leq10$, we scale the generic source spectrum to obtain an observation-based upper limit on the average GW emission. We show that the mean energy emitted in GWs can be constrained within $< (0.49-1.98){1mm} M_{\odot} c^{2}$ depending on the average source spectrum. While these results are higher than the total available gravitational energy in a core collapse event, second and third generation GW detectors will enable tighter constraints to be set on the GW emission from such systems.
Blair David
Howell Eric
Zhu Xing-Jiang
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