{"work":{"id":"de1b5aa7-c340-4c01-a1ae-60bfb8fdf9c6","openalex_id":null,"doi":null,"arxiv_id":"0806.1828","raw_key":null,"title":"Gravitational Wave Production by Collisions: More Bubbles","authors":null,"authors_text":"S","year":2008,"venue":"hep-ph","abstract":"We 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.","external_url":"https://arxiv.org/abs/0806.1828","cited_by_count":null,"metadata_source":"pith","metadata_fetched_at":"2026-07-04T01:59:25.511324+00:00","pith_arxiv_id":"0806.1828","created_at":"2026-05-12T00:16:30.287252+00:00","updated_at":"2026-07-04T01:59:25.511324+00:00","title_quality_ok":true,"display_title":"Gravitational Wave Production by Collisions: More Bubbles","render_title":"Gravitational Wave Production by Collisions: More Bubbles"},"hub":{"state":{"tier_text":"hub","tier":"hub","tier_reason":"10+ Pith inbound or 1,000+ external citations","pith_inbound_count":11,"external_cited_by_count":null},"tier":"hub","role_counts":[{"context_role":"background","n":5}],"polarity_counts":[{"context_polarity":"background","n":5}],"runs":{},"summary":{},"graph":{},"authors":[]}}