Gravitational Wave Background from Population III Stars

Understand

We estimate the gravitational wave (GW) background from Population III (Pop III) stars using the results from our hydrodynamic simulations (Suwa et al.

• 2007).
• We calculate gravitational waveforms from matter motions and anisotropic neutrino emissions for single Pop III stars.
• We find that the GW amplitudes from matter motions are dominant until just after bounce, but those from neutrinos dominate later on at frequencies below $\sim 10$ Hz in the GW spectrum.