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High precision stellar radial velocities in the galactic center
(University of Chicago Press: Astrophysical Journal, 2003-12-20)
We present radial velocities for 85 cool stars projected onto the central parsec of the Galaxy. The majority of these velocities have relative errors of 1 kms−1, or a factor of 30-100 smaller than those previously obtained ...
Massive stars in the Arches cluster
(University of Chicago Press: Astrophysical Journal, 2002-12-10)
We present and use new spectra and narrow-band images, along with previously published broad-band images, of stars in the Arches cluster to extract photometry, astrometry, equivalent width, and velocity information. The ...
2 micron spectroscopy within 0.3 arcseconds of SgrA* [Sagittarius A*]
(University of Chicago Press: Astrophysical Journal Letters, 2000-04-10)
We present moderate (R ≈ 2,700) and high resolution (R ≈ 22,000) 2.0−2.4 µm spectroscopy of the central 0.1 square arcseconds of the Galaxy obtained with NIRSPEC, the facility near-infrared spectrometer for the Keck II ...