An intensive hubble space telescope survey for z>1 type Ia supernovae by targeting galaxy clusters

K. S. Dawson, G. Aldering, R. Amanullah, K. Barbary, L. F. Barrientos, M. Brodwin, N. Connolly, A. Dey, M. Doi, M. Donahue, P. Eisenhardt, E. Ellingson, L. Faccioli, V. Fadeyev, H. K. Fakhouri, A. S. Fruchter, D. G. Gilbank, M. D. Gladders, G. Goldhaber, A. H. GonzalezA. Goobar, A. Gude, T. Hattori, H. Hoekstra, X. Huang, Y. Ihara, B. T. Jannuzi, D. Johnston, K. Kashikawa, B. Koester, K. Konishi, M. Kowalski, C. Lidman, E. V. Linder, L. Lubin, J. Meyers, T. Morokuma, F. Munshi, C. Mullis, T. Oda, N. Panagia, S. Perlmutter, M. Postman, T. Pritchard, J. Rhodes, P. Rosati, D. Rubin, D. J. Schlegel, A. Spadafora, S. A. Stanford, V. Stanishev, D. Stern, M. Strovink, N. Suzuki, N. Takanashi, K. Tokita, M. Wagner, L. Wang, N. Yasuda, H. K.C. Yee

Research output: Contribution to journalArticlepeer-review

59 Scopus citations


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 3 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 an 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.

Original languageEnglish (US)
Pages (from-to)1271-1283
Number of pages13
JournalAstronomical Journal
Issue number5
StatePublished - 2009


  • Cosmology
  • General
  • Observations supernovae

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science


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