Search for cosmic strings in the Great Observatories Origins Deep Survey
- Department of Physics, California Polytechnic State University, San Luis Obispo, CA 93407 (United States)
- Department of Physics, Faculty of Science, National University of Singapore, Singapore, 117542 (Singapore)
- Department of Physics, University of California, Berkeley, CA 94720 (United States)
- Lawrence Berkeley National Laboratory, Space Sciences Laboratory and Department of Physics, University of California, Berkeley, CA 94720 (United States)
We search Hubble Space Telescope Treasury Program images collected as part of the Great Observatories Origins Deep Survey for pairs of galaxies consistent with the gravitational lensing signature of a cosmic string. Our technique includes estimates of the efficiency for finding the lensed galaxy pair. In the north (south) survey field we find no evidence out to a redshift of greater than 0.5 (0.3) for cosmic strings to a mass per unit length limit of G{mu}/c{sup 2}<3.0x10{sup -7} at 95% confidence limits (C.L.). In the combined 314.9 arcmin{sup 2} of the north and south survey fields this corresponds to a global limit on {omega}{sub strings}<0.02. Our limit on G{mu}/c{sup 2} is more than an order of magnitude lower than searches for individual strings in cosmic microwave background (CMB) data. Our limit is higher than other CMB and gravitational wave searches, however, we note that it is less model dependent than these other searches.
- OSTI ID:
- 21205157
- Journal Information:
- Physical Review. D, Particles Fields, Vol. 77, Issue 12; Other Information: DOI: 10.1103/PhysRevD.77.123509; (c) 2008 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
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