THE HUBBLE SPACE TELESCOPE CLUSTER SUPERNOVA SURVEY. VI. THE VOLUMETRIC TYPE Ia SUPERNOVA RATE

Journal Article · Fri Jan 20 00:00:00 EST 2012 · Astrophysical Journal

DOI:https://doi.org/10.1088/0004-637X/745/1/31· OSTI ID:22011994

Barbary, K; Amanullah, R; Fakhouri, H K; Goldhaber, G; Huang, X ^[1]; Aldering, G; Dawson, K S; Hsiao, E ^[2]; Brodwin, M ^[3]; Connolly, N ^[4]; Doi, M; Ihara, Y ^[5]; Eisenhardt, P ^[6]; Faccioli, L; Goobar, A ^[7]; Fadeyev, V ^[8]; Fruchter, A S ^[9]; Gilbank, D G ^[10]; Gladders, M D ^[11]; Hattori, T ^[12] ; others, and

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1. Department of Physics, University of California Berkeley, Berkeley, CA 94720 (United States)
2. E.O. Lawrence Berkeley National Lab, 1 Cyclotron Road, Berkeley, CA 94720 (United States)
3. Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138 (United States)
4. Department of Physics, Hamilton College, Clinton, NY 13323 (United States)
5. Institute of Astronomy, Graduate School of Science, University of Tokyo 2-21-1 Osawa, Mitaka, Tokyo 181-0015 (Japan)
6. Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 (United States)
7. Oskar Klein Centre for Cosmo Particle Physics, AlbaNova, SE-106 91 Stockholm (Sweden)
8. Santa Cruz Institute for Particle Physics, University of California, Santa Cruz, CA 94064 (United States)
9. Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218 (United States)
10. Department of Physics and Astronomy, University Of Waterloo, Waterloo, Ontario N2L 3G1 (Canada)
11. Department of Astronomy and Astrophysics, University of Chicago, Chicago, IL 60637 (United States)
12. Subaru Telescope, National Astronomical Observatory of Japan, 650 North A'ohaku Place, Hilo, HI 96720 (United States)

We present a measurement of the volumetric Type Ia supernova (SN Ia) rate out to z {approx_equal} 1.6 from the Hubble Space Telescope Cluster Supernova Survey. In observations spanning 189 orbits with the Advanced Camera for Surveys we discovered 29 SNe, of which approximately 20 are SNe Ia. Twelve of these SNe Ia are located in the foregrounds and backgrounds of the clusters targeted in the survey. Using these new data, we derive the volumetric SN Ia rate in four broad redshift bins, finding results consistent with previous measurements at z {approx}> 1 and strengthening the case for an SN Ia rate that is {approx}> 0.6 Multiplication-Sign 10{sup -4} h{sup 3}{sub 70} yr{sup -1} Mpc{sup -3} at z {approx} 1 and flattening out at higher redshift. We provide SN candidates and efficiency calculations in a form that makes it easy to rebin and combine these results with other measurements for increased statistics. Finally, we compare the assumptions about host-galaxy dust extinction used in different high-redshift rate measurements, finding that different assumptions may induce significant systematic differences between measurements.

• OSTI ID: 22011994
• Journal Information: Astrophysical Journal, Vol. 745, Issue 1; Other Information: Country of input: International Atomic Energy Agency (IAEA); ISSN 0004-637X
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTROPHYSICS
COSMOLOGY AND ASTRONOMY
COSMOLOGY
DUSTS
GALAXIES
ORBITS
RED SHIFT
SUPERNOVAE
TELESCOPES
WHITE DWARF STARS