Statistics – Applications
Scientific paper
Jul 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005hst..prop10676m&link_type=abstract
HST Proposal ID #10676
Statistics
Applications
Hst Proposal Id #10676 Cosmology
Scientific paper
We propose the largest homogeneous space-based optical gravitational lens search possible prior to the launch of SNAP/JDEM. The HST archive contains a total of 2.2 square degrees of sky imaged with either ACS {78%} or WFPC2 in at least two filters to an appromximate I-band depth of 25 magnitudes. We estimate {with some uncertainty} this area to contain approximately 20-30 elliptical-galaxy strong gravitational lenses, enlarging the currently known sample by some 25%. Complementing those discovered by other means, this lens sample will enable such applications as: the detailed study of galaxy dark matter distributions, their relation to luminous matter, their evolution and their environments; cosmology, through the measurement of time delays {and so the Hubble constant}, and via the observed lensing rate and image separations which probe volumes and distance ratios sensitive to the dark energy parameters. The legacy of this survey will also be that of a suite of automated lens detection algorithms; continuing to refine and apply these to future ACS images as they are archived will allow the discovered lens numbers given above to be doubled. Finally, these algorithms will provide the foundations for the analysis of data from future wide-field space-based optical imagers, which will repeat this lens survey on three orders of magnitude larger a scale.
No associations
LandOfFree
The HST Archive Galaxy-scale Gravitational Lens Search does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with The HST Archive Galaxy-scale Gravitational Lens Search, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The HST Archive Galaxy-scale Gravitational Lens Search will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1250480