Dark matter and the missing images of cx2201-3201

Details Dark matter and the missing images of cx2201-3201 Dark matter and the missing images of cx2201-3201

Jul 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005hst..prop10518s&link_type=abstract

HST Proposal ID #10518

Computer Science

Hst Proposal Id #10518 Galaxies

Scientific paper

The galaxy lensing the z=3.9 quasar cx2201-3201 is a bulgeless edge-on spiral. Models for the disk that contain more than 20% of the mass predict four images, but only two are seen in ground-based images. We request 3 orbits to obtain high resolution optical and infrared images. If the missing images are indeed absent, more than 80% of the mass inside the Einstein radius must be in an unseen spherical component.

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