The Hubble Space Telescope Cluster Supernova Survey: VI. The Volumetric Type Ia Supernova Rate
Abstract
We present a measurement of the volumetric Type Ia supernova (SN Ia) rate out to z ~ 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 > 1 and strengthening the case for a SN Ia rate that is equal to or greater than ~0.6 x 10^-4/yr/Mpc^3 at z ~ 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.
Keywords
Cite
@article{arxiv.1110.6442,
title = {The Hubble Space Telescope Cluster Supernova Survey: VI. The Volumetric Type Ia Supernova Rate},
author = {K. Barbary and G. Aldering and R. Amanullah and M. Brodwin and N. Connolly and K. S. Dawson and M. Doi and P. Eisenhardt 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. Goobar and T. Hattori and E. Hsiao and X. Huang and Y. Ihara and N. Kashikawa and B. Koester and K. Konishi and M. Kowalski and C. Lidman and L. Lubin and J. Meyers and T. Morokuma and T. Oda and N. Panagia and S. Perlmutter and M. Postman and P. Ripoche and P. Rosati and D. Rubin and D. J. Schlegel and A. L. Spadafora and S. A. Stanford and M. Strovink and N. Suzuki and N. Takanashi and K. Tokita and N. Yasuda},
journal= {arXiv preprint arXiv:1110.6442},
year = {2019}
}
Comments
11 pages, 7 figures. Submitted to the Astrophysical Journal. Revised version following referee comments. See the HST Cluster SN Survey website at http://supernova.lbl.gov/2009ClusterSurvey for control time simulations in a machine-readable table and a complete listing of transient candidates from the survey