ar X iv : a st ro - p h / 06 03 83 8 v 3 14 A pr 2 00 6 Hubble Imaging Excludes Cosmic String Lens Eric Agol , Craig

نویسنده

  • Richard M. Plotkin
چکیده

The galaxy image pair CSL-1 has been a leading candidate for a cosmic string lens. High quality imaging data from the Hubble Space Telescope presented here show that it is not a lens but a pair of galaxies. The galaxies show different orientations of their principal axes, not consistent with any lens model. We present a new direct test of the straight-string lens model, using a displaced difference of the image from itself to exclude CSL-1 at high confidence.

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تاریخ انتشار 2006