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Discovery of Cepheids in M100 and M101

Published online by Cambridge University Press:  07 August 2017

Jeremy Mould ,
Wendy Freedman ,
Laura Ferrarese  and
Dan Kelson
Jeremy Mould
Affiliation:
Mount Stromlo and Siding Spring Observatories, Institute of Advanced Studies, Australian National University
Wendy Freedman
Affiliation:
Observatories of Carnegie Institution of Washington
Laura Ferrarese
Affiliation:
Johns Hopkins University and Space Telescope Science Institute
Dan Kelson
Affiliation:
University of California, Santa Cruz

Extract

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The Hubble Space Telescope key project to determine the extragalactic distance scale aims to measure H0 to 10%. To achieve this goal will require Cepheid distance measurements for some 20 galaxies within a redshift of approximately 103 km/s. These galaxies in turn will calibrate five secondary distance indicators which will extend the volume over which the expansion rate has been measured to some 106 Mpc3.

Type
Poster Papers
Information
Symposium - International Astronomical Union , Volume 164: Stellar Populations , 1995 , pp. 432 - 433
Copyright
Copyright © Kluwer 1995 

References

Ferrarese, L. et al. 1995, ApJ, in press Google Scholar
Freedman, W. et al. 1994a, ApJ Letters in press Google Scholar
Freedman, W. et al. 1994b, Nature, Oct. 27, 1994 Google Scholar
Hill, R. et al. 1995, ApJ, in press Google Scholar
Kelson, D. et al. 1995, ApJ, in press Google Scholar
Trauger, J. et al. 1994, ApJ Letters, in press Google Scholar