Gravitational Wave Production by Collisions: More Bubbles

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dc.creatorHuber, Stephan J.
dc.creatorKonstandin, Thomas
dc.date2008-06-11
dc.date2008-10-22
dc.date.accessioned2026-07-07T12:54:03Z
dc.date.available2026-07-07T12:54:03Z
dc.descriptionWe reexamine the production of gravitational waves by bubble collisions during a first-order phase transition. The spectrum of the gravitational radiation is determined by numerical simulations using the "envelope approximation". We find that the spectrum rises as f^3.0 for small frequencies and decreases as f^-1.0 for high frequencies. Thus, the fall-off at high frequencies is significantly slower than previously stated in the literature. This result has direct impact on detection prospects for gravity waves originating from a strong first-order electroweak phase transition at space-based interferometers, such as LISA or BBO. In addition, we observe a slight dependence of the peak frequency on the bubble wall velocity.
dc.description15 pages, 4 figures; some comments added, published version
dc.identifierhttps://arxiv.org/abs/0806.1828
dc.identifierhttp://arxiv.org/abs/0806.1828
dc.identifierJCAP 0809:022,2008
dc.identifierdoi:10.1088/1475-7516/2008/09/022
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/223795
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectAstrophysics
dc.titleGravitational Wave Production by Collisions: More Bubbles
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