Cosmic shear of the microwave background: The curl diagnostic
نویسندگان
چکیده
Asantha Cooray, Marc Kamionkowski, and Robert R. Caldwell Department of Physics and Astronomy, 4129 Frederick Reines Hall, University of California, Irvine, California 92697, USA Mail Code 130-33, California Institute of Technology, Pasadena, California 91125, USA Department of Physics and Astronomy, Dartmouth College, 6127 Wilder Laboratory, Hanover, New Hampshire 03755, USA (Received 25 February 2005; published 28 June 2005)
منابع مشابه
Separation of gravitational-wave and cosmic-shear contributions to cosmic microwave background polarization.
Inflationary gravitational waves (GW) contribute to the curl component in the polarization of the cosmic microwave background (CMB). Cosmic shear--gravitational lensing of the CMB--converts a fraction of the dominant gradient polarization to the curl component. Higher-order correlations can be used to map the cosmic shear and subtract this contribution to the curl. Arcminute resolution will be ...
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تاریخ انتشار 2005