Hubble constant at intermediate redshift using the CO-line Tully-Fisher relation

Yoshinori Tutui; Yoshiaki Sofue; Mareki Honma; Takashi Ichikawa; Ken ichi Wakamatsu

doi:10.1093/pasj/53.5.701

Hubble constant at intermediate redshift using the CO-line Tully-Fisher relation

Yoshinori Tutui, Yoshiaki Sofue, Mareki Honma, Takashi Ichikawa, Ken ichi Wakamatsu

Research output: Contribution to journal › Article › peer-review

8 Citations (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	701-712
Number of pages	12
Journal	Publications of the Astronomical Society of Japan
Volume	53
Issue number	5
DOIs	https://doi.org/10.1093/pasj/53.5.701
Publication status	Published - 2001 Oct 25
Externally published	Yes

Keywords

Cosmology: Hubble constant
Galaxies: distances and redshifts
ISM: CO line

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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10.1093/pasj/53.5.701

Cite this

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title = "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 ∼ 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.",

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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

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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JO - Publications of the Astronomical Society of Japan

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SN - 0004-6264

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ER -

Hubble constant at intermediate redshift using the CO-line Tully-Fisher relation

Abstract

Keywords

ASJC Scopus subject areas

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