COSMOGRAIL: the COSmological MOnitoring of GRAvItational Lenses

Details COSMOGRAIL: the COSmological MOnitoring of GRAvItational Lenses COSMOGRAIL: the COSmological MOnitoring of GRAvItational Lenses

Jun 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005iaus..225..297c&link_type=abstract

Gravitational Lensing Impact on Cosmology, IAU Symposium, vol. 225. Edited by Yannick Mellier and Georges Meylan, ISBN 052185196

Computer Science

Scientific paper

We describe a new project aiming at measuring time delays for most known lensed quasars, from optical light curves obtained with five (almost) dedicated 1-2 m telescopes in the Northern and Southern hemispheres. The goal is to evaluate the Hubble constant H0 with a precision below 2%. We present here numerical simulations in order to define the optimal temporal sampling in our observations as a function of typical quasar variations, object visibility, and for a given accuracy on the individual photometric points. It is also emphasized that the ongoing effort to obtain deep imaging using both space and ground based facilities must be continued, as illustrated by the comparison of HST and VLT near-IR images of the `cloverleaf': H 1413+117.

Affiliated with

Also associated with

No associations

Rating

COSMOGRAIL: the COSmological MOnitoring of GRAvItational Lenses 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 COSMOGRAIL: the COSmological MOnitoring of GRAvItational Lenses, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and COSMOGRAIL: the COSmological MOnitoring of GRAvItational Lenses will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1397927