3 papers
astro-ph2008
Measuring Distance and Properties of the Milky Way's Central Supermassive Black Hole with Stellar Orbits
A. M. Ghez, S. Salim, N. N. Weinberg +10
We report new precision measurements of the properties of our Galaxy's supermassive black hole. Based on astrometric (1995-2007) and radial velocity (2000-2007) measurements from t…
astro-ph2003
The First Measurement of Spectral Lines in a Short-Period Star Bound to the Galaxy's Central Black Hole: A Paradox of Youth
A. M. Ghez, G. Duchene, K. Matthews +11
We have obtained the first detection of spectral absorption lines in one of the high-velocity stars in the vicinity of the Galaxy's central supermassive black hole. Both Brgamma (2…
astro-ph2000
The Accelerations of Stars Orbiting the Milky Way's Central Black Hole
A. Ghez, M. Morris, E. E. Becklin +2
Recent measurements, of the velocities of stars near the center of the Milky Way have provided the strongest evidence for the presence of a supermassive black hole in a galaxy, but…