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23 High Redshift Supernovae from the IfA Deep Survey: Doubling the SN Sample at z>0.7
Brian J. Barris, John Tonry, Stephane Blondin +29
We present photometric and spectroscopic observations of 23 high redshift supernovae spanning a range of z=0.34-1.03, 9 of which are unambiguously classified as Type Ia. These supe…
Imaging and Demography of the Host Galaxies of High-Redshift Type Ia Supernovae
Benjamin F. Williams, Craig J. Hogan, Brian Barris +24
We present the results of a study of the host galaxies of high redshift Type Ia supernovae (SNe Ia). We provide a catalog of 18 hosts of SNe Ia observed with the Hubble Space Teles…
New Data and Improved Parameters for the Transiting Planet OGLE-TR-56b
Guillermo Torres, Maciej Konacki, Dimitar D. Sasselov +1
We report new spectroscopic observations of the recently discovered transiting planet OGLE-TR-56b with the Keck/HIRES instrument. Our radial velocity measurements with errors of ~1…
High-resolution spectroscopic follow-up of OGLE planetary transit candidates in the Galactic bulge: two possible Jupiter-mass planets and two blends
Maciej Konacki, Guillermo Torres, Dimitar D. Sasselov +1
We report the results of our campaign to follow-up spectroscopically several candidate extrasolar transiting planets from the OGLE-III survey in the direction of the Galactic cente…
Optical Spectra of the Type Ia Supernova 1998aq
D. Branch, P. Garnavich, T. Matheson +6
We present 29 optical spectra of the normal Type Ia SN 1998aq, ranging from 9 days before to 241 days after the time of maximum brightness. This spectroscopic data set, together wi…
The Katzman Automatic Imaging Telescope Gamma-Ray Burst Alert System, and Observations of GRB 020813
Weidong Li, Alexei V. Filippenko, Ryan Chornock +1
We present the technical details of the gamma-ray burst (GRB) alert system of the Katzman Automatic Imaging Telescope (KAIT) at Lick Observatory, and the successful observations of…