Apr 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992sci...256..321h&link_type=abstract
Science (ISSN 0036-8075), vol. 256, no. 5055, April 17, 1992, p. 321-325. Research supported by NASA and Smithsonian Institution
Physics
27
Cosmology, Dimensional Measurement, Hubble Constant, Distance, Galaxies
Scientific paper
The Hubble constant is the constant of proportionality between recession velocity and distance in the expanding universe. It is a fundamental property of cosmology that sets both the scale and the expansion age of the universe. It is determined by measurement of galaxy radial velocities and distances. Although there has been considerable progress in the development of new techniques for the measurements of galaxy distances, both calibration uncertainties and debates over systematic errors remain. Current determinations still range over nearly a factor of 2; the higher values favored by most local measurements are not consistent with many theories of the origin of large-scale structure and stellar evolution.
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