2013/11/20 by M. Hamuy, Hamuy, Mario
Physics and Astronomy · #Astronomy and Astrophysical Research #Astrophysics and Cosmic Phenomena #Cosmology and Nongalactic Astrophysics (astro-ph.CO) #FOS: Physical sciences #Gamma-ray bursts and supernovae
paper · pdf · doi:10.48550/arxiv.1311.5099
openalex publication_date 2013/11/20 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
The discovery of acceleration and dark energy arguably constitutes the most\nrevolutionary discovery in astrophysics in recent years. Cerro Tololo\nInter-American Observatory (CTIO) played a key role in this amazing discovery\nthrough three systematic supernova surveys organized by staff astronomers: the\n"Tololo Supernova Program" (1986-2000), the Calan/Tololo Project (1989-1993),\nand the "High-Z Supernova Search Team" (1994-1998). CTIO's state of the art\ninstruments also were fundamental in the independent discovery of acceleration\nby the "Supernova Cosmology Project" (1992-1999). Here I summarize the work on\nsupernovae carried out from CTIO that led to the discovery of acceleration and\ndark energy and provide a brief historical summary on the use of Type Ia\nsupernovae in cosmology in order to provide context for the CTIO contribution.\n