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Hubble Constant at Intermediate Redshift Using the CO-Line Tully-Fisher Relation
2001
Nippon Tenmon Gakkai obun kenkyu hokoku
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We have determined distances and Hubble ratios for galaxies at intermediate redshifts, cz=about 10,000 to 35,000 km/s, by applying the CO-line Tully-Fisher relation to our 12CO (J=1-0)-line observations using the Nobeyama 45-m telescope, and near-IR (NIR) photometry in the J and H bands using the 1.88-m telescope at Okayama Astrophysical Observatory. By averaging the Hubble ratios from J-band result, we obtain a Hubble constant of H_0 = 60 (+/- 10) km/s/Mpc. We argue that the CO line-NIR TFR
doi:10.1093/pasj/53.5.701
fatcat:hfnsoaibdvazrluon6hsc7kvma