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Late-Time Optical and UV Spectra of SN 1979C and SN 1980K
Robert A. Fesen, Christopher L. Gerardy, Alexei V. Filippenko +8
A low-dispersion Keck I spectrum of SN 1980K taken in August 1995 (t = 14.8 yr after explosion) and a November 1997 MDM spectrum (t = 17.0 yr) show broad 5500 km s^{-1} emission li…
Supernova Limits on the Cosmic Equation of State
P. M. Garnavich, S. Jha, P. Challis +18
We use Type Ia supernovae studied by the High-Z Supernova Search Team to constrain the properties of an energy component which may have contributed to accelerating the cosmic expan…
Gamma-Ray Bursts and Type Ic Supernovae: SN 1998bw
S. E. Woosley, Ronald G. Eastman, Brian P. Schmidt
Recently a Type Ic supernova, SN 1998bw, was discovered coincident with a gamma-ray burst, GRB 980425. The supernova had unusual radio, optical, and spectroscopic properties. We ex…
Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant
Adam G. Riess, Alexei V. Filippenko, Peter Challis +17
We present observations of 10 type Ia supernovae (SNe Ia) between 0.16 < z < 0.62. With previous data from our High-Z Supernova Search Team, this expanded set of 16 high-redshift s…
The High-Z Supernova Search: Measuring Cosmic Deceleration and Global Cur vature of the Universe Using Type Ia Supernovae
Brian P. Schmidt, Nicholas B. Suntzeff, M. M. Phillips +21
The High-Z Supernova Search is an international collaboration to discover and monitor type Ia supernovae (SN Ia) at with the aim of measuring cosmic deceleration and glob…