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Title: A Measurement of the Rate of Type Ia Supernovae in Galaxy Clusters from the SDSS-II Supernova Survey

Abstract

We present measurements of the Type Ia supernova (SN) rate in galaxy clusters based on data from the Sloan Digital Sky Survey-II (SDSS-II) Supernova Survey. The cluster SN Ia rate is determined from 9 SN events in a set of 71 C4 clusters at z {le} 0.17 and 27 SN events in 492 maxBCG clusters at 0.1 {le} z {le} 0.3. We find values for the cluster SN Ia rate of (0.37{sub -0.12-0.01}{sup +0.17+0.01}) SNur h{sup 2} and (0.55{sub -0.11-0.01}{sup +0.13+0.02}) SNur h{sup 2} (SNux = 10{sup -12}L{sub x{circle_dot}}{sup -1} yr{sup -1}) in C4 and maxBCG clusters, respectively, where the quoted errors are statistical and systematic, respectively. The SN rate for early-type galaxies is found to be (0.31{sub -0.12-0.01}{sup +0.18+0.01}) SNur h{sup 2} and (0.49{sub -0.11-0.01}{sup +0.15+0.02}) SNur h{sup 2} in C4 and maxBCG clusters, respectively. The SN rate for the brightest cluster galaxies (BCG) is found to be (2.04{sub -1.11-0.04}{sup +1.99+0.07}) SNur h{sup 2} and (0.36{sub -0.30-0.01}{sup +0.84+0.01}) SNur h{sup 2} in C4 and maxBCG clusters, respectively. The ratio of the SN Ia rate in cluster early-type galaxies to that of the SN Ia rate in field early-type galaxies is 1.94{sub -0.91-0.015}{sup +1.31+0.043} and 3.02{sub -1.03-0.048}{sup +1.31+0.062}, for C4more » and maxBCG clusters, respectively. The SN rate in galaxy clusters as a function of redshift, which probes the late time SN Ia delay distribution, shows only weak dependence on redshift. Combining our current measurements with previous measurements, we fit the cluster SN Ia rate data to a linear function of redshift, and find r{sub L} = [(0.49{sub -0.14}{sup +0.15}) + (0.91{sub -0.81}{sup +0.85}) x z] SNuB h{sup 2}. A comparison of the radial distribution of SNe in cluster to field early-type galaxies shows possible evidence for an enhancement of the SN rate in the cores of cluster early-type galaxies. With an observation of at most 3 hostless, intra-cluster SNe Ia, we estimate the fraction of cluster SNe that are hostless to be (9.4{sub -5.1}{sup +8.3})%.« less

Authors:
; ; ; ; ; ; ; ; ; ;
Publication Date:
Research Org.:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
975170
Report Number(s):
FERMILAB-PUB-10-069-A
arXiv eprint number arXiv:1003.1521; TRN: US201008%%114
DOE Contract Number:  
AC02-07CH11359
Resource Type:
Journal Article
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; DISTRIBUTION; GALAXIES; GALAXY CLUSTERS; PROBES; SKY; SPATIAL DISTRIBUTION; SUPERNOVAE; Astrophysics

Citation Formats

Dilday, Benjamin, /Rutgers U., Piscataway /Chicago U. /KICP, Chicago, Bassett, Bruce, /Cape Town U., Dept. Math. /South African Astron. Observ., Becker, Andrew, /Washington U., Seattle, Astron. Dept., Bender, Ralf, /Munich, Tech. U. /Munich U. Observ., Castander, Francisco, /Barcelona, IEEC, Cinabro, David, /Wayne State U., Frieman, Joshua A, /Chicago U. /Fermilab, Galbany, Lluis, /Barcelona, IFAE, Garnavich, Peter, /Notre Dame U., Goobar, Ariel, /Stockholm U., OKC /Stockholm U., Hopp, Ulrich, and /Munich, Tech. U. /Munich U. Observ. /Tokyo U. A Measurement of the Rate of Type Ia Supernovae in Galaxy Clusters from the SDSS-II Supernova Survey. United States: N. p., 2010. Web. doi:10.1088/0004-637X/715/2/1021.
Dilday, Benjamin, /Rutgers U., Piscataway /Chicago U. /KICP, Chicago, Bassett, Bruce, /Cape Town U., Dept. Math. /South African Astron. Observ., Becker, Andrew, /Washington U., Seattle, Astron. Dept., Bender, Ralf, /Munich, Tech. U. /Munich U. Observ., Castander, Francisco, /Barcelona, IEEC, Cinabro, David, /Wayne State U., Frieman, Joshua A, /Chicago U. /Fermilab, Galbany, Lluis, /Barcelona, IFAE, Garnavich, Peter, /Notre Dame U., Goobar, Ariel, /Stockholm U., OKC /Stockholm U., Hopp, Ulrich, & /Munich, Tech. U. /Munich U. Observ. /Tokyo U. A Measurement of the Rate of Type Ia Supernovae in Galaxy Clusters from the SDSS-II Supernova Survey. United States. doi:10.1088/0004-637X/715/2/1021.
Dilday, Benjamin, /Rutgers U., Piscataway /Chicago U. /KICP, Chicago, Bassett, Bruce, /Cape Town U., Dept. Math. /South African Astron. Observ., Becker, Andrew, /Washington U., Seattle, Astron. Dept., Bender, Ralf, /Munich, Tech. U. /Munich U. Observ., Castander, Francisco, /Barcelona, IEEC, Cinabro, David, /Wayne State U., Frieman, Joshua A, /Chicago U. /Fermilab, Galbany, Lluis, /Barcelona, IFAE, Garnavich, Peter, /Notre Dame U., Goobar, Ariel, /Stockholm U., OKC /Stockholm U., Hopp, Ulrich, and /Munich, Tech. U. /Munich U. Observ. /Tokyo U. Mon . "A Measurement of the Rate of Type Ia Supernovae in Galaxy Clusters from the SDSS-II Supernova Survey". United States. doi:10.1088/0004-637X/715/2/1021. https://www.osti.gov/servlets/purl/975170.
@article{osti_975170,
title = {A Measurement of the Rate of Type Ia Supernovae in Galaxy Clusters from the SDSS-II Supernova Survey},
author = {Dilday, Benjamin and /Rutgers U., Piscataway /Chicago U. /KICP, Chicago and Bassett, Bruce and /Cape Town U., Dept. Math. /South African Astron. Observ. and Becker, Andrew and /Washington U., Seattle, Astron. Dept. and Bender, Ralf and /Munich, Tech. U. /Munich U. Observ. and Castander, Francisco and /Barcelona, IEEC and Cinabro, David and /Wayne State U. and Frieman, Joshua A and /Chicago U. /Fermilab and Galbany, Lluis and /Barcelona, IFAE and Garnavich, Peter and /Notre Dame U. and Goobar, Ariel and /Stockholm U., OKC /Stockholm U. and Hopp, Ulrich and /Munich, Tech. U. /Munich U. Observ. /Tokyo U.},
abstractNote = {We present measurements of the Type Ia supernova (SN) rate in galaxy clusters based on data from the Sloan Digital Sky Survey-II (SDSS-II) Supernova Survey. The cluster SN Ia rate is determined from 9 SN events in a set of 71 C4 clusters at z {le} 0.17 and 27 SN events in 492 maxBCG clusters at 0.1 {le} z {le} 0.3. We find values for the cluster SN Ia rate of (0.37{sub -0.12-0.01}{sup +0.17+0.01}) SNur h{sup 2} and (0.55{sub -0.11-0.01}{sup +0.13+0.02}) SNur h{sup 2} (SNux = 10{sup -12}L{sub x{circle_dot}}{sup -1} yr{sup -1}) in C4 and maxBCG clusters, respectively, where the quoted errors are statistical and systematic, respectively. The SN rate for early-type galaxies is found to be (0.31{sub -0.12-0.01}{sup +0.18+0.01}) SNur h{sup 2} and (0.49{sub -0.11-0.01}{sup +0.15+0.02}) SNur h{sup 2} in C4 and maxBCG clusters, respectively. The SN rate for the brightest cluster galaxies (BCG) is found to be (2.04{sub -1.11-0.04}{sup +1.99+0.07}) SNur h{sup 2} and (0.36{sub -0.30-0.01}{sup +0.84+0.01}) SNur h{sup 2} in C4 and maxBCG clusters, respectively. The ratio of the SN Ia rate in cluster early-type galaxies to that of the SN Ia rate in field early-type galaxies is 1.94{sub -0.91-0.015}{sup +1.31+0.043} and 3.02{sub -1.03-0.048}{sup +1.31+0.062}, for C4 and maxBCG clusters, respectively. The SN rate in galaxy clusters as a function of redshift, which probes the late time SN Ia delay distribution, shows only weak dependence on redshift. Combining our current measurements with previous measurements, we fit the cluster SN Ia rate data to a linear function of redshift, and find r{sub L} = [(0.49{sub -0.14}{sup +0.15}) + (0.91{sub -0.81}{sup +0.85}) x z] SNuB h{sup 2}. A comparison of the radial distribution of SNe in cluster to field early-type galaxies shows possible evidence for an enhancement of the SN rate in the cores of cluster early-type galaxies. With an observation of at most 3 hostless, intra-cluster SNe Ia, we estimate the fraction of cluster SNe that are hostless to be (9.4{sub -5.1}{sup +8.3})%.},
doi = {10.1088/0004-637X/715/2/1021},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2010},
month = {3}
}