AN INTENSIVE HUBBLE SPACE TELESCOPE SURVEY FOR z>1 TYPE Ia SUPERNOVAE BY TARGETING GALAXY CLUSTERS

Journal Article · Sun Nov 15 04:00:00 EST 2009 · Astronomical Journal (New York, N.Y. Online)

DOI:https://doi.org/10.1088/0004-6256/138/5/1271; COUNTRY OF INPUT: INTERNATIONAL ATOMIC ENERGY AGENCY (IAEA)· OSTI ID:21301570

Dawson, K S ^[1]; Aldering, G; Barbary, K; Faccioli, L; Fakhouri, H K; Goldhaber, G ^[2]; Amanullah, R ^[3]; Barrientos, L F ^[4]; Brodwin, M ^[5]; Connolly, N ^[6]; Dey, A ^[7]; Doi, M ^[8]; Donahue, M ^[9]; Eisenhardt, P ^[10]; Ellingson, E ^[11]; Fadeyev, V ^[12]; Fruchter, A S ^[13]; Gilbank, D G ^[14]; Gladders, M D ^[15]

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1. Department of Physics and Astronomy, University of Utah, Salt Lake City, UT 84112 (United States)
2. E. O. Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA 94720 (United States)
3. Department of Physics, University of California Berkeley, Berkeley, CA 94720 (United States)
4. Departmento de Astronomia, Pontificia Universidad Catolica de Chile, Santiago (Chile)
5. Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138 (United States)
6. Hamilton College Department of Physics, Clinton, NY 13323 (United States)
7. National Optical Astronomy Observatory, Tucson, AZ 85726-6732 (United States)
8. Institute of Astronomy, Graduate School of Science, University of Tokyo 2-21-1 Osawa, Mitaka, Tokyo 181-0015 (Japan)
9. Michigan State University, Department of Physics and Astronomy, East Lansing, MI, 48824-2320 (United States)
10. Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 (United States)
11. Center for Astrophysics and Space Astronomy, 389 UCB, University of Colorado, Boulder, CO 80309 (United States)
12. Santa Cruz Institute for Particle Physics, University of California, Santa Cruz, CA 94064 (United States)
13. Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218 (United States)
14. Department of Physics and Astronomy, University Of Waterloo, Waterloo, Ontario, N2L 3G1 Canada (Canada)
15. Department of Astronomy and Astrophysics, University of Chicago, Chicago, IL 60637 (United States)

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.

• OSTI ID: 21301570
• Journal Information: Astronomical Journal (New York, N.Y. Online), Journal Name: Astronomical Journal (New York, N.Y. Online) Journal Issue: 5 Vol. 138; ISSN 1538-3881
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTRONOMY AND ASTROPHYSICS
99 GENERAL AND MISCELLANEOUS
COLOR
COSMOLOGY
GALAXIES
GALAXY CLUSTERS
RED SHIFT
SUPERNOVAE
TELESCOPES