Astronomy and Astrophysics – Astrophysics
Scientific paper
2005-03-04
Astron.J.131:1629-1638,2006
Astronomy and Astrophysics
Astrophysics
24 pages (6 figures), submitted to the Astronomical Journal
Scientific paper
10.1086/500047
The Hubble Ultra Deep Field Survey has not only provided the deepest optical and near infrared views of universe, but has enabled a search for the most distant supernovae to z~2.2. We have found four supernovae by searching spans of integrations of the Ultra Deep Field and the Ultra Deep Field Parallels taken with the Hubble Space Telescope paired with the Advanced Camera for Surveys and the Near Infrared Multi Object Spectrometer. Interestingly, none of these supernovae were at z>1.4, despite the substantially increased sensitivity per unit area to such objects over the Great Observatories Origins Deep Survey. We present the optical photometric data for the four supernovae. We also show that the low frequency of Type Ia supernovae observed at z>1.4 is statistically consistent with current estimates of the global star formation history combined with the non-trivial assembly time of SN Ia progenitors.
Riess Adam G.
Strolger Louis Gregory
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