TY - JOUR
T1 - Hubble constant at intermediate redshift using the CO-line Tully-Fisher relation
AU - Tutui, Yoshinori
AU - Sofue, Yoshiaki
AU - Honma, Mareki
AU - Ichikawa, Takashi
AU - Wakamatsu, Ken ichi
N1 - Copyright:
Copyright 2017 Elsevier B.V., All rights reserved.
PY - 2001/10/25
Y1 - 2001/10/25
N2 - We have determined distances and Hubble ratios for galaxies at intermediate redshifts, cz ∼ 10000 to 35000 km s-1, 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 (NlR) photometry in the J-and H-bands using the 1.88-m telescope at Okayama Astrophysical Observatory. By averaging the Hubble ratios from the J-band result, we obtained a Hubble constant of H0 = 60 ± 10 kms-1 Mpc-1. We argue that the CO line-NIR Tully-Fisher relation can be a complimentary method to the other methods for measuring the distances of galaxies at intermediate and high redshifts.
AB - We have determined distances and Hubble ratios for galaxies at intermediate redshifts, cz ∼ 10000 to 35000 km s-1, 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 (NlR) photometry in the J-and H-bands using the 1.88-m telescope at Okayama Astrophysical Observatory. By averaging the Hubble ratios from the J-band result, we obtained a Hubble constant of H0 = 60 ± 10 kms-1 Mpc-1. We argue that the CO line-NIR Tully-Fisher relation can be a complimentary method to the other methods for measuring the distances of galaxies at intermediate and high redshifts.
KW - Cosmology: Hubble constant
KW - Galaxies: distances and redshifts
KW - ISM: CO line
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U2 - 10.1093/pasj/53.5.701
DO - 10.1093/pasj/53.5.701
M3 - Article
AN - SCOPUS:0035541429
VL - 53
SP - 701
EP - 712
JO - Publications of the Astronomical Society of Japan
JF - Publications of the Astronomical Society of Japan
SN - 0004-6264
IS - 5
ER -