Distance to the Virgo cluster galaxy M100 from Hubble Space Telescope observations of Cepheids

Nature ◽  
1994 ◽  
Vol 371 (6500) ◽  
pp. 757-762 ◽  
Author(s):  
Wendy L. Freedman ◽  
Barry F. Madore ◽  
Jeremy R. Mould ◽  
Robert Hill ◽  
Laura Ferrarese ◽  
...  
1994 ◽  
Vol 108 ◽  
pp. 1598 ◽  
Author(s):  
L. Ferrarese ◽  
F. C. van den Bosch ◽  
H. C. Ford ◽  
W. Jaffe ◽  
R. W. O'Connell

1989 ◽  
Vol 111 ◽  
pp. 169-176
Author(s):  
Jeremy Mould

For three quarters of a century pulsating variable stars have lain at the foundation of the extragalactic distance scale. The construction of larger telescopes, advances in detector technology, hard work by observers, and our understanding of stellar structure have all contributed to the expansion of the realm of the Cepheids to the distance of M101. Now, with the advent of Hubble Space Telescope (HST), we can look forward to the detection of Cepheids in the Virgo cluster and the removal of much of the remaining uncertainty in the Hubble constant.


1994 ◽  
Vol 108 ◽  
pp. 1579 ◽  
Author(s):  
Frank C. van den Bosch ◽  
Laura Ferrarese ◽  
Walter Jaffe ◽  
Holland C. Ford ◽  
Robert W. O'Connell

1994 ◽  
Vol 108 ◽  
pp. 1567 ◽  
Author(s):  
W. Jaffe ◽  
H. C. Ford ◽  
R. W. O'Connell ◽  
F. C. van den Bosch ◽  
L. Ferrarese

1995 ◽  
Vol 166 ◽  
pp. 267-272
Author(s):  
Sidney Van Den Bergh

It is generally agreed that the Hubble parameter lies in the range 50 < Ho (km s−1 Mpc−1) < 100. Recent observations, which are discussed in the present paper, favor Ho ≳ 75 km s−1 Mpc−1. Hubble Space Telescope observations of Cepheids in Virgo cluster galaxies will probably reduce the uncertainty in Ho to ∼ 20%. It should be possible to lower this remaining uncertainty in the Hubble parameter by strengthening the calibration of the Cepheid period-luminosity relation, the MV(RR) versus [Fe/H] relation of RR Lyrae stars, and the luminosity calibration of the subdwarf main sequence, by using parallaxes obtained with Hipparcos.


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