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The brightness of SN 1991T and the uniformity of decline-rate and colour corrected absolute magnitudes of supernovae Ia
T. Richtler, J. B. Jensen, J. Tonry +2
We present a distance to NGC 4527, the host galaxy of the type Ia SN 1991T, measured by surface brightness fluctuations. This supernova has been labelled ``peculiar'' both on the g…
The Infrared Surface Brightness Fluctuation Hubble Constant
Joseph B. Jensen, John L. Tonry, Rodger I. Thompson +5
We measured infrared surface brightness fluctuation (SBF) distances to an isotropically-distributed sample of 16 distant galaxies with redshifts reaching 10,000 km/s using the near…
The SBF Survey of Galaxy Distances. IV. SBF Magnitudes, Colors, and Distances
John L. Tonry, Alan Dressler, John P. Blakeslee +5
We report data for band Surface Brightness Fluctuation (SBF) magnitudes, V-I colors, and distance moduli for 300 galaxies. The Survey contains E, S0 and early-type spiral galax…
Optical Spectra of Type Ia Supernovae at z=0.46 and z=1.2
Alison L. Coil, Thomas Matheson, Alexei V. Filippenko +19
We present optical spectra, obtained with the Keck 10-m telescope, of two high-redshift type Ia supernovae (SNe Ia) discovered by the High-z Supernova Search Team: SN 1999ff at z=0…
Multicolor Observations of a Planetary Transit of HD 209458
Saurabh Jha, David Charbonneau, Peter M. Garnavich +4
We present B, V, R, I and Z-band photometric observations of HD 209458 during the transit by its planetary companion on UT 1999 November 15 with the University of Hawaii 0.6m and 2…
RJK Observations of the Optical Afterglow of GRB 991216
P. M. Garnavich, S. Jha, M. A. Pahre +5
We present near-infrared and optical observations of the afterglow to the Gamma-Ray Burst (GRB) 991216 obtained with the F. L. Whipple Observatory 1.2-m telescope and the Universit…