Searching for gravitational waves from Cassiopeia A with LIGO
- Creators
- Wette, K.
- 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, M.
- 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.
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.
Additional Information
Copyright © 2008 Institute of Physics. Received 17 June 2008, in final form 3 September 2008. Published 17 November 2008. Print publication: Issue 23 (7 December 2008). We are grateful to the LSC internal reviewers for helpful comments on the manuscript. This work was supported by Australian Research Council grant DP-0770426 and USA National Science Foundation grants PHY-0245649, PHY-0555628, and cooperative agreement PHY-0114375 (the Penn State Center for Gravitational Wave Physics). This paper has been assigned LIGO document number P070123-02-Z.Attached Files
Published - WETcqg08.pdf
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Additional details
- Eprint ID
- 12556
- Resolver ID
- CaltechAUTHORS:WETcqg08
- DP-0770426
- Australian Research Council
- PHY-0245649
- National Science Foundation
- PHY-0555628
- National Science Foundation
- PHY-0114375
- National Science Foundation
- Created
-
2008-12-12Created from EPrint's datestamp field
- Updated
-
2023-10-17Created from EPrint's last_modified field
- Other Numbering System Name
- LIGO Document
- Other Numbering System Identifier
- P070123-02-Z