A new estimate of the Hubble constant using the Virgo cluster distance.
Abstract
The Hubble constant, which defines the size and age of the universe, remains substantially uncertain. Attention is presently given to an improved distance to the Virgo Cluster obtained by means of the 1.05-micron luminosity-H I width relation of spirals. In order to improve the absolute calibration of the relation, accurate distances to the nearby SMC, LMC, N6822, SEX A and N300 galaxies have also been obtained, on the basis of the near-IR P-L relation of the Cepheids. A value for the global Hubble constant of 67 + or 4 km/sec per Mpc is obtained.
- Publication:
-
Publications of the Astronomical Society of Australia
- Pub Date:
- 1985
- DOI:
- Bibcode:
- 1985PASA....6..140V
- Keywords:
-
- Distance;
- Hubble Constant;
- Virgo Galactic Cluster;
- Angular Velocity;
- Cepheid Variables;
- Computational Astrophysics;
- Magellanic Clouds;
- Spiral Galaxies;
- Stellar Luminosity;
- Astrophysics