H
Holland C. Ford
Researcher at Johns Hopkins University
Publications - 348
Citations - 30604
Holland C. Ford is an academic researcher from Johns Hopkins University. The author has contributed to research in topics: Galaxy & Galaxy cluster. The author has an hindex of 93, co-authored 347 publications receiving 29661 citations. Previous affiliations of Holland C. Ford include Universities Space Research Association & Space Telescope Science Institute.
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Journal ArticleDOI
The HST Key Project on the Extragalactic Distance Scale. XXVIII. Combining the Constraints on the Hubble Constant
Jeremy Mould,John P. Huchra,Wendy L. Freedman,Robert C. Kennicutt,Laura Ferrarese,Holland C. Ford,Brad K. Gibson,John A. Graham,Shaun M. G. Hughes,Garth D. Illingworth,Daniel D. Kelson,Lucas M. Macri,Barry F. Madore,Shoko Sakai,Kim Sebo,Nancy A. Silbermann,Peter B. Stetson +16 more
TL;DR: In this paper, a model of the velocity field was used to estimate the value of the Hubble constant within the range of the Tully-Fisher relation and its uncertainty, and the result is H_0 = 71 +/- 6 km/sec/Mpc. The largest contributor to this 67% confidence level result is the distance of the Large Magellanic Cloud, which has been assumed to be 50 +/- 3 kpc.
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The Hubble Space Telescope Key Project on the Extragalactic Distance Scale. XXVIII. Combining the Constraints on the Hubble Constant
Jeremy Mould,John P. Huchra,Wendy L. Freedman,Robert C. Kennicutt,Laura Ferrarese,Holland C. Ford,Brad K. Gibson,John A. Graham,Shaun M. G. Hughes,Garth D. Illingworth,Daniel D. Kelson,Lucas M. Macri,Barry F. Madore,Shoko Sakai,Kim Sebo,Nancy A. Silbermann,Peter B. Stetson +16 more
TL;DR: In this paper, the Tully-fisher relation, the fundamental plane of elliptical galaxies, Type Ia supernovae, and surface brightness fluctuations are combined with a model of the velocity field to yield the best available estimate of the value of H0 within the range of these secondary distance indicators and its uncertainty.
Journal ArticleDOI
The Hubble Space Telescope Extragalactic Distance Scale Key Project. 1: The discovery of Cepheids and a new distance to M81
Wendy L. Freedman,Shaun M. G. Hughes,Barry F. Madore,Jeremy Mould,Myung Gyoon Lee,Peter B. Stetson,Robert C. Kennicutt,Anne M. Turner,Laura Ferrarese,Holland C. Ford,John A. Graham,Robert S. Hill,John G. Hoessel,John P. Huchra,Garth D. Illingworth +14 more
TL;DR: In this paper, the discovery of 30 new Cepheids in the nearby galaxy M81 based on observations using the Hubble Space Telescope (HST) was reported, based on 18 independent epochs using the HST wide-band F555W filter.
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Galaxies in the Hubble Ultra Deep Field. I. Detection, Multiband Photometry, Photometric Redshifts, and Morphology
Dan Coe,Dan Coe,Narciso Benítez,Narciso Benítez,Sebastián F. Sánchez,Myungkook J. Jee,Rychard Bouwens,Holland C. Ford +7 more
TL;DR: In this article, the authors presented aperture-matched point-spread function (PSF)-corrected BVi'z'JH photometry and Bayesian photometric redshifts (BPZ) for objects detected in the Hubble Ultra Deep Field (UDF), 8042 of which are detected at the 10 σ level (e.g., i' < 29.01 or z' < 28.43).
Journal ArticleDOI
The Morphology - Density Relation in z ~ 1 Clusters
Marc Postman,M. Franx,Nicholas Cross,Bradford P. Holden,Holland C. Ford,G. D. Illingworth,Tomotsugu Goto,R. Demarco,Piero Rosati,John P. Blakeslee,K.-V. Tran,Narciso Benítez,Acs Idt +12 more
TL;DR: In this paper, the authors measured the morphology-density relation (MDR) and morphology-radius relation (MRR) for galaxies in seven z ~ 1 clusters that have been observed with the Advanced Camera for Surveys on board the Hubble Space Telescope.