Searching for gravitational waves from Cassiopeia A with LIGO

Wette, Karl; Owen, B. J.; Allen, B.; Ashley, M.; Betzwieser, J.; Christensen, N.; Creighton, T. D.; Dergachev, V.; Gholami, I.; Goetz, E.; Gustafson, R.; Hammer, D.; Jones, D. I.; Krishnan, B.; Landry, M.; Machenschalk, B.; McClelland, D. E.; Mendell, G.; Messenger, C. J.; Papa, M A.; Patel, P.; Pitkin, Matthew; Pletsch, H. J.; Prix, R.; Riles, K.; Sancho de la Jordana, L.; Scott, S. M.; Sintes, A. M.; Trias, M.; Whelan, J. T.; Woan, G.

doi:10.1088/0264-9381/25/23/235011

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Searching for gravitational waves from Cassiopeia A with LIGO

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Wette, Karl
Observational Relativity and Cosmology, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society;

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Allen, B.
Observational Relativity and Cosmology, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society;

Gholami, I.
AEI-Golm, MPI for Gravitational Physics, Max Planck Society;

/persons/resource/persons20661

Krishnan, B.
Astrophysical Relativity, AEI-Golm, MPI for Gravitational Physics, Max Planck Society;

/persons/resource/persons40529

Machenschalk, B.
Observational Relativity and Cosmology, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society;

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Messenger, C. J.
Observational Relativity and Cosmology, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society;

/persons/resource/persons20662

Papa, M A.
Astrophysical Relativity, AEI-Golm, MPI for Gravitational Physics, Max Planck Society;

/persons/resource/persons40533

Pletsch, H. J.
Observational Relativity and Cosmology, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society;

/persons/resource/persons40534

Prix, R.
Observational Relativity and Cosmology, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society;

/persons/resource/persons4289

Sintes, A. M.
Astrophysical Relativity, AEI-Golm, MPI for Gravitational Physics, Max Planck Society;

/persons/resource/persons4293

Whelan, J. T.
Astrophysical Relativity, AEI-Golm, MPI for Gravitational Physics, Max Planck Society;

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Citation

Wette, K., Owen, B. J., Allen, B., Ashley, M., Betzwieser, J., Christensen, N., et al. (2008). Searching for gravitational waves from Cassiopeia A with LIGO. Classical and Quantum Gravity, 25(23): 235011. doi:10.1088/0264-9381/25/23/235011.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0013-132F-E

Abstract

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.