Distance Measurement of Galaxies to Redshift of 0.1 using the CO-Line Tully-Fisher Relation

We report on the first results of a long-term project to derive the distances of galaxies at cosmological distances by applying the CO-line width–luminosity relation. We have obtained deep CO-line observations of galaxies at redshifts of up to cz ∼ 29000 km s-1 using the Nobeyama 45-m mm-wave telescope; also, some supplementary data were obtained using the IRAM 30-m telescope. We have detected CO-...