Other
Scientific paper
Dec 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004aas...20517812m&link_type=abstract
American Astronomical Society Meeting 205, #178.12; Bulletin of the American Astronomical Society, Vol. 37, p.383
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1
Scientific paper
The ESSENCE project is an ongoing program designed to discover and follow 200 Type Ia supernovae (SNe) at redshifts of 0.2 < z < 0.8 in order to place tight constraints on w, the equation of state parameter of the dark energy. The project is currently in its third year, roughly half way through the period necessary to achieve our goals. In our first two years, we have identified and followed roughly spectroscopically confirmed 50 Type Ia SNe (despite "challenging" El Nino conditions the first year), and at the time of writing, have discovered another 25 type Ia SNe in 2004. We have extensively refined our real-time reduction and analysis tools to provide extremely rapid feedback on the transients we identify in order to trigger our followup spectroscopy on the optimal events. We report on our progress to date, including an update on our third year of observations which are currently in progress (October through December 2004). The ESSENCE project is partially supported by NSF grant AST-0206329.
Aguilera Claudio
Barris Brian
Becker Andrew C.
Blondin Stephan
Challis Peter
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