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          Institute: MPI für Gravitationsphysik     Collection: Laser Interferometry & Gravitational Wave Astronomy     Display Documents

ID: 424242.0, MPI für Gravitationsphysik / Laser Interferometry & Gravitational Wave Astronomy
Searching for gravitational waves from Cassiopeia A with LIGO
Authors:Wette, K.; Owen, B. J.; Allen, Bruce; Ashley, M.; Betzwieser, J.; Christensen, Nelson; Creighton, Teviet D.; Dergachev, V.; Gholami, Iraj; Goetz, E.; Gustafson, R.; Hammer, D.; Jones, David Ian; Krishnan, Badri; Landry, Michael; Machenschalk, Bernd; McClelland, D. E.; Messenger, Christopher; Papa, Maria Alessandra; Patel, P.; Pitkin, Matthew; Pletsch, Holger; Prix, Reinhard; Riles, K.; de la Jordana, Sancho; Scott, S. M.; Sintes, A. M.; Trias, M.; Whelan, John T.; Woan, G.; LIGO Scientific Collaboration
Date of Publication (YYYY-MM-DD):2008-12-07
Title of Journal:Classical and Quantum Gravity
Issue / Number:23
Sequence Number of Article:235011
Review Status:not specified
Audience:Not Specified
Abstract / Description:We describe a search underway for periodic gravitational waves from the central compact object in the supernova remnant Cassiopeia A. The object is the youngest likely neutron star in the Galaxy. Its position is well known, but the object does not pulse in any electromagnetic radiation band and thus presents a challenge in searching the parameter space of frequency and frequency derivatives. We estimate that a fully coherent search can, with a reasonable amount of time on a computing cluster, achieve a sensitivity at which it is theoretically possible (though not likely) to observe a signal even with the initial LIGO noise spectrum. Cassiopeia A is only the second object after the Crab pulsar for which this is true. The search method described here can also obtain interesting results for similar objects with current LIGO sensitivity.
External Publication Status:published
Document Type:Article
Communicated by:Hermann Nicolai
Affiliations:MPI für Gravitationsphysik/Teilinstitut Hannover
MPI für Gravitationsphysik/Laser Interferometry & Gravitational Wave Astronomy
MPI für Gravitationsphysik/Observational Relativity and Cosmology
MPI für Gravitationsphysik/Astrophysical Relativity
Identifiers:LOCALID:arXiv:0802.3332v2 [gr-qc]
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0802.3332v2.pdf  [142,00 Kb] [Comment:arXiv:0802.3332v2 [gr-qc]]  
cqg8_23_235011.pdf  [116,00 Kb] [Comment:Online Journal]  
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