Cosmic Expansion and Ho: A Retro- and Pro-Spective Note

Details Cosmic Expansion and Ho: A Retro- and Pro-Spective Note Cosmic Expansion and Ho: A Retro- and Pro-Spective Note

2002-08-08

arxiv.org/abs/astro-ph/0208176v2

Astronomy and Astrophysics

Astrophysics

15 pages (2 figures). To appear in the proceedings of the XXXVIIth Moriond Astrophysics Meeting "The Cosmological Model", Les

Scientific paper

Attempts to measure extragalactic distances over the last 90 years are
briefly described. It follows a short history of the discovery of the expansion
of space. Reasons are discussed for the decrease of the Hubble constant from
Ho~500 originally to Ho<~60 at present. Remaining problems with Cepheids as
local distance calibrators are outlined.

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