Focussing in on H_0

Details Focussing in on H_0 Focussing in on H_0

1996-11-15

arxiv.org/abs/astro-ph/9611119v1

Astronomy and Astrophysics

Astrophysics

22 pages, 4 EPS figures, LaTeX with cupconf.sty. To appear in: The Extragalactic Distance Scale, eds. M. Livio, M. Donahue, N.

Scientific paper

Six independent methods yield a Virgo cluster modulus of (m-M)=31.66+/- 0.08. This inserted into the Hubble diagram of clusters, whose relative distances to the Virgo cluster are known, gives H_0=54+/-4. The result is independent of any observed or inferred velocity of the Virgo cluster and holds out 10 000 km/s. An analogous use of the Fornax cluster is not yet possible because of its unknown structure in space and its poorly understood distance relative to other clusters. Field galaxies, corrected for Malmquist bias, give H_0=53+/-3. The results of purely physical distance determinations cluster around H_0=55+/-10. These results may be compared with the high-weight determination of H_0=58.5+/-3 from Cepheid-calibrated SNe Ia and their Hubble diagram out to 30 000 km/s (Saha 1996). The agreement of the independent methods suggests that the external error of an adopted value of H_0=58 is equal or less than 13%.

Affiliated with

Also associated with

No associations

Rating

Focussing in on H_0 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 Focussing in on H_0, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Focussing in on H_0 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-352464