3.3k citations
- Herzberg Institute of AstrophysicsCA335 papers
- National Research Council CanadaCA238 papers
- University of TorontoCA90 papers
- California Institute of TechnologyUS78 papers
- Centre National de la Recherche ScientifiqueFR66 papers
- University of VictoriaCA63 papers
- Center for Astrophysics Harvard & SmithsonianUS62 papers
- National Institute for AstrophysicsIT60 papers
- University of California, Santa CruzUS51 papers
- Instituto de Astrofísica de CanariasES50 papers
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33 papers · 1 filter
A revised Cepheid distance to NGC 4258 and a test of the distance scale
Jeffrey A. Newman, Laura Ferrarese, Peter B. Stetson +5
In a previous paper (Maoz et al. 1999), we reported a Hubble Space Telescope (HST) Cepheid distance to the galaxy NGC 4258 obtained using the calibrations and methods then standard…
Final Results from the Hubble Space Telescope Key Project to Measure the Hubble Constant
W. L. Freedman, B. F. Madore, B. K. Gibson +12
We present here the final results of the Hubble Space Telescope Key Project to measure the Hubble constant. We summarize our method, the results and the uncertainties, tabulate our…
Weak lensing study of low mass galaxy groups: implications for Omega_m
H. Hoekstra, M. Franx, K. Kuijken +8
We report on the first measurement of the average mass and mass-to-light ratio of galaxy groups by analysing the weak lensing signal induced by these systems. The groups, which hav…
Emission line oscillations in the dwarf nova V2051 Ophiuchi
D. Steeghs, K. O'Brien, K. Horne +2
We have detected coherent oscillations, at multiple frequencies, in the line and continuum emission of the eclipsing dwarf nova V2051 Ophiuchi using the 10m Keck II telescope. Our…
Supernova 1991T and the Value of the Hubble Constant
Brad K. Gibson, Peter B. Stetson
Based upon multi-epoch Hubble Space Telescope observations, we present the discovery of sixteen high-quality Cepheid candidates in NGC 4527. Corrected for metallicity effects in th…
Evidence of a Supermassive Black Hole in the Galaxy NGC 1023 from the Nuclear Stellar Dynamics
G. A. Bower, R. F. Green, R. Bender +13
We analyze the nuclear stellar dynamics of the SB0 galaxy NGC 1023, utilizing observational data both from the Space Telescope Imaging Spectrograph aboard the Hubble Space Telescop…