Searching for gravitational waves from Cassiopeia A with LIGO

Wette, K. et al. (2008) Searching for gravitational waves from Cassiopeia A with LIGO. Classical and Quantum Gravity, 25(23), (doi:10.1088/0264-9381/25/23/235011)

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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.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Messenger, Dr Christopher and Woan, Professor Graham and Pitkin, Dr Matthew
Authors: Wette, K., Owen, B.J., Allen, B., Ashley, M., Betzwieser, J., Christensen, N., Creighton, T., Dergachev, V., Gholami, I., Goetz, E., Gustafson, R., Hammer, D., Jones, D., Krishnan, B., Landry, M., Machenschalk, B., McClelland, D., Mendell, G., Messenger, C.J., Papa, M., Patel, P., Pitkin, M., Pletsch, H., Prix, R., Riles, K., la Jordana, L., Scott, S., Sintes, A., Trias, M., Whelan, J., and Woan, G.
College/School:College of Science and Engineering > School of Physics and Astronomy
Journal Name:Classical and Quantum Gravity
Publisher:Institute of Physics
ISSN:0264-9381

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
459312Investigations in Gravitational Radiation.Sheila RowanScience & Technologies Facilities Council (STFC)ST/I001085/1Physics and Astronomy