Autor:	S. M. G. Hughes
Rok vydání:	1995
Předmět:	Physics Cepheid variable Key (cryptography) Astronomy
Zdroj:	International Astronomical Union Colloquium. 155:258-259
ISSN:	0252-9211
DOI:	10.1017/s0252921100037076
Popis:	As part of the Extragalactic Distance Scale Key Project, the Hubble Space Telescope has been used to identify Cepheids in M100, M101 and NGC925, and to measure distances derived from the Cepheid PL relation. For M100, the distance of 17.1 ± 1.8 Mpc has been used to infer a preliminary value for H0 of ~ 80 km/s/Mpc, which brings the age of the Universe derived from the standard model of the Big Bang into conflict with the ages of the oldest stars.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::19326830309eb33f46d2dd175eee1c8e https://doi.org/10.1017/s0252921100037076 Zobrazit plný text záznamu