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Microlensing by Cosmic Strings · Around

2007

Microlensing by Cosmic Strings

Kuijken, Konrad, Siemens, Xavier, Vachaspati, Tanmay

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We consider the signature and detectability of gravitational microlensing of distant quasars by cosmic strings.

Because of the simple image configuration such events will have a characteristic light curve, in which a source would appear to brighten by exactly a factor of two, before reverting to its original apparent brightness.
We calculate the optical depth and event rate, and conclude that current predictions and limits on the total length of strings on the sky imply optical depths of $\la 10^{-8}$ and event rates of fewer than one event per $10^9$ sources per year.
Disregarding those predictions but replacing them with limits on the density of cosmic strings from the CMB fluctuation spectrum, leaves only a small region of parameter space (in which the sky contains about $3\times10^5$ strings with deficit angle of order 0.3 milli-arcseconds) for which a microlensing survey of exposure $10^7$ source-years, spanning a 20--40-year period, might reveal the presence of cosmic strings.

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Liebes, S., 1964, Phys.Rev.B, 133, 835
1964
Earlier work this paper cites.
Refsdal, S., 1964, MNRAS, 128, 295
1964
Earlier work this paper cites.
Kibble, T.W.B., 1976, J.Phys. A9, 1387
1976
Earlier work this paper cites.
Paczynski, B., 1986, ApJ, 304, 1
1986
Earlier work this paper cites.
Hindmarsh, M.B. & Kibble, T.W.B., 1995, Rept. Prog. Phys., 58, 477
1995
Earlier work this paper cites.
Vilenkin, A. & Shellard, E.P.S., 2000, Cosmic Strings and Other Topological Defects (Cambridge CUP)
2000
Earlier work this paper cites.

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Then

Tye, S.-H. H., preprint hep-th/0610221
2006
Later among the works it cites.
Vanchurin, V., Olum, K.D., Vilenkin, A., Phys.Rev. D74 (2006) 063527
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Later among the works it cites.
Chernoff, D.F. & Tye, S.-H.H., 2007, preprint (arXiv:0709.1139v2 [astro-ph])
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