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20022009
most citedImproved Cosmological Constraints from New, Old and Combined Supernova Datasets

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astro-ph2002

A Mass for the Extrasolar Planet Gl 876b Determined from Hubble Space Telescope Fine Guidance Sensor 3 Astrometry and High-Precision Radial Velocities

G. F. Benedict, B. E. McArthur, T. Forveille +9

We report the first astrometrically determined mass of an extrasolar planet, a companion previously detected by Doppler spectroscopy. Radial velocities first provided an ephemeris…