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Illuminating the Primeval Universe with Type IIn Supernovae
Daniel J. Whalen, Wesley Even, C. C. Lovekin +7
The detection of Pop III supernovae could directly probe the primordial IMF for the first time, unveiling the properties of the first galaxies, early chemical enrichment and reioni…
High-Velocity Line Forming Regions in the Type Ia Supernova 2009ig
G. H. Marion, Jozsef Vinko, J. Craig Wheeler +13
We report measurements and analysis of high-velocity (> 20,000 km/s) and photospheric absorption features in a series of spectra of the Type Ia supernova (SN) 2009ig obtained betwe…
The Unusual Temporal and Spectral Evolution of the Type IIn Supernova 2011ht
P. W. A. Roming, T. A. Pritchard, J. L. Prieto +17
We present very early UV to optical photometric and spectroscopic observations of the peculiar Type IIn supernova (SN) 2011ht in UGC 5460. The UV observations of the rise to peak a…
The Hubble Space Telescope Cluster Supernova Survey: V. Improving the Dark Energy Constraints Above z>1 and Building an Early-Type-Hosted Supernova Sample
N. Suzuki, D. Rubin, C. Lidman +62
We present ACS, NICMOS, and Keck AO-assisted photometry of 20 Type Ia supernovae SNe Ia from the HST Cluster Supernova Survey. The SNe Ia were discovered over the redshift interval…
The Absolute Magnitudes of Type Ia Supernovae in the Ultraviolet
Peter J. Brown, Peter W. A. Roming, Peter Milne +19
We examine the absolute magnitudes and light-curve shapes of 14 nearby(redshift z = 0.004--0.027) Type Ia supernovae (SNe~Ia) observed in the ultraviolet (UV) with the Swift Ultrav…
An Intensive HST Survey for z>1 Supernovae by Targeting Galaxy Clusters
K. S. Dawson, G. Aldering, R. Amanullah +57
We present a new survey strategy to discover and study high redshift Type Ia supernovae (SNe Ia) using the Hubble Space Telescope (HST). By targeting massive galaxy clusters at 0.9…