Comparison of search templates for gravitational waves from binary inspiral
نویسندگان
چکیده
We compare the performances of the templates defined by three different types of approaches: traditional post-Newtonian templates ~Taylor approximants!, ‘‘resummed’’ post-Newtonian templates assuming the adiabatic approximation and stopping before the plunge (P approximants!, and further ‘‘resummed’’ postNewtonian templates going beyond the adiabatic approximation and incorporating the plunge with its transition from the inspiral ~effective-one-body approximants!. The signal to noise ratio is significantly enhanced ~mainly because of the inclusion of the plunge signal! by using these new effective-one-body templates relative to the usual post-Newtonian ones for a total binary mass m*30M ( , and reaches a maximum around m;80M ( . Independently of the question of the plunge signal, the comparison of the various templates confirms the usefulness of using resummation methods. The paper also summarizes the key elements of the construction of various templates and thus can serve as a resource for those involved in writing inspiral search software.
منابع مشابه
Title of dissertation: IMPROVING ANALYTICAL TEMPLATES AND SEARCHING FOR GRAVITATIONAL WAVES FROM COALESCING BLACK HOLE BINARIES
Title of dissertation: IMPROVING ANALYTICAL TEMPLATES AND SEARCHING FOR GRAVITATIONAL WAVES FROM COALESCING BLACK HOLE BINARIES Evan Ochsner Doctor of Philosphy, 2010 Dissertation directed by: Professor Alessandra Buonanno Department of Physics The Laser Interferometer Gravitational-wave Observatory (LIGO) and Virgo are taking data at design sensitivity. They will be upgraded to Advanced LIGO a...
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