{ "id": "1702.04833", "version": "v1", "published": "2017-02-16T01:19:34.000Z", "updated": "2017-02-16T01:19:34.000Z", "title": "Gravitational wave sources: reflections and echoes", "authors": [ "Richard Price", "Gaurav Khanna" ], "comment": "8 pages, 5 figures", "categories": [ "gr-qc", "astro-ph.HE" ], "abstract": "The recent detection of gravitational waves has generated interest in alternatives to the black hole interpretation of sources. One set of such alternatives involves a prediction of gravitational wave \"echoes\". We consider two aspects of possible echoes: First, general features of echoes coming from spacetime reflecting conditions. We find that the detailed nature of such echoes does not bear any clear relationship to quasi-normal frequencies. Second, we point out the pitfalls in the analysis of local reflecting \"walls\" near the horizon of rapidly rotating black holes.", "revisions": [ { "version": "v1", "updated": "2017-02-16T01:19:34.000Z" } ], "analyses": { "keywords": [ "gravitational wave sources", "reflections", "black hole interpretation", "clear relationship", "alternatives" ], "note": { "typesetting": "TeX", "pages": 8, "language": "en", "license": "arXiv", "status": "editable" } } }