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64 papers · 1 filter
The Hubble Deep Field South - STIS Imaging
J. P. Gardner, S. A. Baum, T. M. Brown +18
We present the imaging observations made with the Space Telescope Imaging Spectrograph of the Hubble Deep Field - South. The field was imaged in 4 bandpasses: a clear CCD bandpass…
The Origin of \lya Absorption Systems at ---Implications from the Hubble Deep Field
Hsiao-Wen Chen, Kenneth M. Lanzetta, Alberto Fernández-Soto
The Hubble Deep Field images have provided us with a unique chance to relate statistical properties of high-redshift galaxies to statistical properties of \lya absorption systems.…
Near-IR adaptive optics imaging of nuclear spiral structure in the Seyfert galaxy, NGC3227
Scott C. Chapman, Simon L. Morris, Gordon A. H. Walker
We present high spatial resolution, near-IR images in J, H, K of the nucleus of NGC3227, obtained with the Adaptive Optics bonnette on CFHT. The ~0.15 arcsec (17pc) resolution allo…
Axisymmetric, 3-Integral Models of Galaxies: A Massive Black Hole in NGC3379
Karl Gebhardt, Douglas Richstone, John Kormendy +8
We fit axisymmetric 3-integral dynamical models to NGC3379 using the line-of-sight velocity distribution obtained from HST/FOS spectra of the galaxy center and ground-based long-sl…
Evidence for the Hierarchical Formation of the Galactic Spheroid
Patrick Cote, Ronald O. Marzke, Michael J. West +1
The possibility that the Galactic spheroid was assembled from numerous chemically-distinct, proto-Galactic fragments is investigated using a Monte-Carlo technique designed to simul…
Six New Planets from the Keck Precision Velocity Survey
Steven S. Vogt, Geoffrey W. Marcy, R. Paul Butler +1
We report results of a search for planets around 500 main sequence stars using the Keck high resolution spectrometer which has provided Doppler precision of 3 m/s during the past 3…