DISTANCE TO THE VIRGO CLUSTER GALAXY M100 FROM HUBBLE-SPACE-TELESCOPE OBSERVATIONS OF CEPHEIDS

被引：396

作者：

FREEDMAN, WL

MADORE, BF

MOULD, JR

HILL, R

FERRARESE, L

KENNICUTT, RC

SAHA, A

STETSON, PB

GRAHAM, JA

FORD, H

HOESSEL, JG

HUCHRA, J

HUGHES, SM

ILLINGWORTH, GD

机构：

[1] CALTECH, JET PROP LAB, CTR INFRARED PROC & ANAL, NASA IPAC EXTRAGALACT DATABASE, PASADENA, CA 91125 USA

[2] AUSTRALIAN NATL UNIV, MT STROMLO & SIDING SPRING OBSERV, WESTON, ACT 2611, AUSTRALIA

[3] JOHNS HOPKINS UNIV, DEPT PHYS & ASTRON, BALTIMORE, MD 21218 USA

[4] UNIV ARIZONA, STEWARD OBSERV, TUCSON, AZ 85721 USA

[5] SPACE TELESCOPE SCI INST, BALTIMORE, MD 21218 USA

[6] DOMINION ASTROPHYS OBSERV, VICTORIA V8X 4M6, BC, CANADA

[7] CARNEGIE INST WASHINGTON, DEPT TERR MAGNETISM, WASHINGTON, DC 20015 USA

[8] UNIV WISCONSIN, DEPT ASTRON, MADISON, WI 53706 USA

[9] HARVARD SMITHSONIAN CTR ASTROPHYS, CAMBRIDGE, MA 02138 USA

[10] ROYAL GREENWICH OBSERV, CAMBRIDGE CB3 0HA, ENGLAND

[11] UNIV CALIF SANTA CRUZ, LICK OBSERV, SANTA CRUZ, CA 95064 USA

来源：

NATURE | 1994年 / 371卷 / 6500期

关键词：

D O I：

10.1038/371757a0

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Accurate distances to galaxies are critical for determining the present expansion rate of the Universe or Hubble constant (H-o). An important step in resolving the current uncertainty in H-o is the measurement of the distance to the Virgo cluster of galaxies. New observations using the Hubble Space Telescope yield a distance of 17.1 +/- 1.8 Mpc to the Virgo cluster galaxy M100. This distance leads to a value of H-o = 80 +/- 17 km s(-1) Mpc(-1). A comparable value of H-o is also derived from the Coma cluster using independent estimates of its distance ratio relative to the Virgo cluster.

引用

页码：757 / 762

页数：6

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