Hubble Space Telescope Observations of Nine High-Redshift ESSENCE Supernovae1
Krisciunas, Kevin; Garnavich, Peter M; Challis, Peter M; Prieto, Jose Luis; Riess, Adam; Barris, Brian; Aguilera, Claudio; Becker, Andrew C; Blondin, Stephane; Chornock, Ryan; Clocchiatti, Alejandro; Covarrubias, Ricardo; Filippenko, Alexei; Foley, Ryan; Hicken, Malcolm; Jha, Saurabh; Kirshner, Robert P; Leibundgut, Bruno; Li, Weidong; Matheson, Thomas; Miceli, Anthony; Miknaitis, Gajus; Rest, Armin; Salvo, Maria; Smith, R. Chris; Sollerman, Jesper; Spyromilio, Jason; Stubbs, Christopher; Suntzeff, Nicholas B; Tonry, John; Wood-Vasey, W. Michael
We present broadband light curves of nine supernovae ranging in redshift from 0.5 to 0.8. The supernovae were discovered as part of the ESSENCE project, and the light curves are a combination of Cerro Tololo 4 m and Hubble Space Telescope (HST) photometry. On the basis of spectra and/or light-curve fitting, eight of these objects are definitely Type la supernovae, while the classification of one is problematic. The ESSENCE project is a 5 yr endeavor to discover about 200 high-redshift Type la...[Show more]
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