Publications (13)
Searches for Rare and New Types of Objects
S. G. Djorgovski, A. A. Mahabal, R. J. Brunner +4
Systematic exploration of the observable parameter space, covered by large digital sky surveys spanning a range of wavelengths, will be one of the primary modes of research with a…
Peculiar Broad Absorption Line Quasars found in DPOSS
Robert J. Brunner, Patrick B. Hall, S. George Djorgovski +10
With the recent release of large (i.e., > hundred million objects), well-calibrated photometric surveys, such as DPOSS, 2MASS, and SDSS, spectroscopic identification of important t…
High-Resolution Abundance Analysis of Very Metal-Rich Stars in the Solar Neighborhood
S. Castro, R. M. Rich, M. Grenon +2
We report detailed analysis of high-resolution spectra of nine high velocity metal-rich dwarfs in the solar neighborhood. The stars are super metal-rich and 5 of them have [Fe/H]>=…
Keck Spectroscopy and HST Imaging of GRB 000926: Probing a Host Galaxy at z = 2. 038
S. Castro, T. J. Galama, F. A. Harrison +4
We present early-time Keck spectroscopic observations and late-time Hubble Space Telescope (HST) imaging of GRB 000926. The HST images show a small offset between the optical trans…
Time-Dependent Optical Spectroscopy of GRB 010222: Clues to the GRB Environment
N. Mirabal, J. P. Halpern, S. R. Kulkarni +9
We present sequential optical spectra of the afterglow of GRB 010222 obtained one day apart using the Low Resolution Imaging Spectrometer (LRIS) and the Echellette Spectrograph and…
Spatial/Spectral Resolution of a Galactic Bulge K3 Giant Stellar Atmosphere via Gravitational Microlensing
S. Castro, R. W. Pogge, R. M. Rich +2
We present two Keck HIRES spectra (R=40,000) of a bulge K3 giant taken on successive nights during the second caustic crossing of the binary microlensing event EROS BLG-2000-5. Thi…