Dawson, K. S. and Aldering, G. and Amanullah, R. and Barbary, K. and Barrientos, L. F. and Brodwin, M. and Connolly, N. and Dey, A. and Doi, M. and Donahue, M. and Eisenhardt, P. and Ellingson, E. and Faccioli, L. and Fadeyev, V. and Fakhouri, H. K. and Fruchter, A. S. and Gilbank, D. G. and Gladders, M. D. and Goldhaber, G. and Gonzalez, A. H. and Goobar, A. and Gude, A. and Hattori, T. and Hoekstra, H. and Huang, X. and Ihara, Y. and Jannuzi, B. T. and Johnston, D. and Kashikawa, K. and Koester, B. and Konishi, K. and Kowalski, M. and Lidman, C. and Linder, E. V. and Lubin, L. and Meyers, J. and Morokuma , T. and Munshi, F. and Mullis, C. and Oda, T. and Panagia, N. and Perlmutter, S. and Postman, M. and Pritchard, T. and Rhodes, J. and Rosati, P. and Rubin, D. and Schlegel, D. J. and Spadafora, A. and Stanford, S. A. and Stanishev, V. and Stern, D. and Strovink, M. and Suzuki, N. and Takanashi, N. and Tokita, K. and Wagner, M. and Wang, L. and Yasuda, N. and Yee, H. K. C. (2009) An Intensive Hubble Space Telescope Survey for z > 1 Type Ia Supernovae by Targeting Galaxy Clusters. Astronomical Journal, 138 (5). pp. 1271-1283. ISSN 0004-6256 http://resolver.caltech.edu/CaltechAUTHORS:20091104-140953688
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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.
|Additional Information:||© 2009 The American Astronomical Society. Received 2009 April 6; accepted 2009 August 15; published 2009 September 22. We thank Julien Guy, Pierre Astier, and Josh Frieman for stimulating discussion of SN color and host type from their experience in the analyses of the large SNLS and SDSS-II SN data sets. We thank the Aspen Center for Physics for its summer 2007 hospitality during the preparation of this paper. Financial support for this work was provided by NASA through program GO-10496 from the Space Telescope Science Institute, which is operated by AURA, Inc., under NASA contract NAS 5-26555. This work was also supported in part by the Director, Office of Science, Office of High Energy and Nuclear Physics, of the U.S. Department of Energy under Contract No. AC02-05CH11231, as well as a JSPS core-to-core program “International Research Network for Dark Energy” and by JSPS research grant 20040003. Support for M.B. was provided by the W. M. Keck Foundation. The work of S.A.S. was performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory in part under Contract W-7405-Eng-48 and in part under Contract DE-AC52-07NA27344. The work of P.E., J.R., and D.S. was carried out at the Jet Propulsion Laboratory, California Institute of Technology, under a contract with NASA. Subaru observations were collected at Subaru Telescope, which is operated by the National Astronomical Observatory of Japan. Some of the data presented herein were obtained at the W.M. Keck Observatory, which is operated as a scientific partnership among the California Institute of Technology, the University of California, and the National Aeronautics and Space Administration. The authors recognize and acknowledge the very significant cultural role and reverence that the summit of Mauna Kea has always had within the indigenous Hawaiian community. We are most fortunate to have the opportunity to conduct observations from this mountain. Some of spectroscopic data presented in this paper were taken at the Cerro Paranal Observatory as part of ESO programs 171.A-0486, 276.A-5034, 077.A-0110, and 078.A-0060.|
|Subject Keywords:||cosmology: observations; supernovae: general|
|Official Citation:||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. Gonzalez, A. 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, and H. K. C. Yee (The Supernova Cosmology Project) 2009 The Astronomical Journal 138 1271-1283 doi: 10.1088/0004-6256/138/5/1271|
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|Deposited By:||Tony Diaz|
|Deposited On:||16 Nov 2009 17:03|
|Last Modified:||26 Dec 2012 11:31|
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