Gravitational Lensing and the Extragalactic Distance Scale

Details Gravitational Lensing and the Extragalactic Distance Scale Gravitational Lensing and the Extragalactic Distance Scale

1996-11-27

arxiv.org/abs/astro-ph/9611229v1

Astronomy and Astrophysics

Astrophysics

16 pages, 3 eps figures, uses cupconf.sty. To appear in "The Extragalactic Distance Scale", eds. M. Livio, M. Donahue, and N.

Scientific paper

The potential of gravitational lenses for providing direct, physical measurements of the Hubble constant, free from systematic errors associated with the traditional distance ladder, has long been recognized. However, it is only recently that there has been a convincing measurement of a time delay sufficiently accurate to carry out this program. By itself, an accurate time delay measurement does not produce an equivalently definite Hubble constant and the errors associated with models of the primary lens, propagation through the potential fluctuations produced by the large-scale structure and the global geometry of the universe must also be taken into account. The prospects for measuring several more time delays and the feasibility of making the corresponding estimates of the Hubble constant with total error smaller than ten percent are critically assessed.

Affiliated with

Also associated with

No associations

Rating

Gravitational Lensing and the Extragalactic Distance Scale 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 Gravitational Lensing and the Extragalactic Distance Scale, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Gravitational Lensing and the Extragalactic Distance Scale will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-515359