Hubble Constant at Intermediate Redshift using the CO-Line Tully-Fisher Relation

Abstract

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 can be a complimentary method to the other methods for measuring distances of galaxies at intermediate and high redshifts.

PASJ in press

References in corpus (1)

• Surface Photometric Calibration of the Infrared Tully-Fisher Relation Using Cepheid-based Distances of Galaxies

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• The Tully-Fisher Relation of COLD GASS Galaxies
• Testing Cosmological General Relativity against high redshift observations
• CO Tully-Fisher Relation of Star-forming Galaxies at z=0.05-0.3
• Hubble distancing: Focusing on distance measurements in cosmology
• BUDHIES V: The baryonic Tully-Fisher relation at z=0.2 based on direct HI detections