An Intensive HST Survey for z>1 Supernovae by Targeting Galaxy Clusters
Abstract
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<z<1.5, we obtain a twofold improvement in the efficiency of finding SNe compared to an HST field survey and a factor of three improvement in the total yield of SN detections in relatively dust-free red-sequence galaxies. In total, sixteen SNe were discovered at z>0.95, nine of which were in galaxy clusters. This strategy provides a SN sample that can be used to decouple the effects of host galaxy extinction and intrinsic color in high redshift SNe, thereby reducing one of the largest systematic uncertainties in SN cosmology.
Keywords
Cite
@article{arxiv.0908.3928,
title = {An Intensive HST Survey for z>1 Supernovae by Targeting Galaxy Clusters},
author = {K. S. Dawson and G. Aldering and R. Amanullah and K. Barbary and L. F. Barrientos and M. Brodwin and N. Connolly and A. Dey and M. Doi and M. Donahue and P. Eisenhardt and E. Ellingson and L. Faccioli and V. Fadeyev and H. K. Fakhouri and A. S. Fruchter and D. G. Gilbank and M. D. Gladders and G. Goldhaber and A. H. Gonzalez and A. Goobar and A. Gude and T. Hattori and H. Hoekstra and X. Huang and Y. Ihara and B. T. Jannuzi and D. Johnston and K. Kashikawa and B. Koester and K. Konishi and M. Kowalski and C. Lidman and E. V. Linder and L. Lubin and J. Meyers and T. Morokuma and F. Munshi and C. Mullis and T. Oda and N. Panagia and S. Perlmutter and M. Postman and T. Pritchard and J. Rhodes and P. Rosati and D. Rubin and D. J. Schlegel and A. Spadafora and S. A. Stanford and V. Stanishev and D. Stern and M. Strovink and N. Suzuki and N. Takanashi and K. Tokita and M. Wagner and L. Wang and N. Yasuda and H. K. C. Yee},
journal= {arXiv preprint arXiv:0908.3928},
year = {2010}
}
Comments
15 pages, 8 figures, accepted by AJ, see http://www.supernova.lbl.gov for additional information pertaining to the HST Cluster SN Survey