2014MNRAS.440.2742N


C.D.S. - SIMBAD4 rel 1.7 - 2020.05.27CEST09:33:28

2014MNRAS.440.2742N - Mon. Not. R. Astron. Soc., 440, 2742-2754 (2014/May-3)

Lensed Type Ia supernovae as probes of cluster mass models.

NORDIN J., RUBIN D., RICHARD J., RYKOFF E., ALDERING G., AMANULLAH R., ATEK H., BARBARY K., DEUSTUA S., FAKHOURI H.K., FRUCHTER A.S., GOOBAR A., HOOK I., HSIAO E.Y., HUANG X., KNEIB J.-P., LIDMAN C., MEYERS J., PERLMUTTER S., SAUNDERS C., SPADAFORA A.L., SUZUKI N. (The Supernova Cosmology Project)

Abstract (from CDS):

Using three magnified Type Ia supernovae (SNe Ia) detected behind CLASH (Cluster Lensing and Supernovae with Hubble) clusters, we perform a first pilot study to see whether standardizable candles can be used to calibrate cluster mass maps created from strong lensing observations. Such calibrations will be crucial when next-generation Hubble Space Telescope cluster surveys (e.g. Frontier) provide magnification maps that will, in turn, form the basis for the exploration of the high-redshift Universe. We classify SNe using combined photometric and spectroscopic observations, finding two of the three to be clearly of Type Ia and the third probable. The SNe exhibit significant amplification, up to a factor of 1.7 at ∼ 5σ significance (SN-L2). We conducted this as a blind study to avoid fine-tuning of parameters, finding a mean amplification difference between SNe and the cluster lensing models of 0.09±0.09stat±0.05sysmag. This impressive agreement suggests no tension between cluster mass models and high-redshift-standardized SNe Ia. However, the measured statistical dispersion of σµ = 0.21mag appeared large compared to the dispersion expected based on statistical uncertainties (0.14). Further work with the SN and cluster lensing models, post-unblinding, reduced the measured dispersion to σµ = 0.12. An explicit choice should thus be made as to whether SNe are used unblinded to improve the model, or blinded to test the model. As the lensed SN samples grow larger, this technique will allow improved constraints on assumptions regarding e.g. the structure of the dark matter halo.

Abstract Copyright: © 2014 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society (2014)

Journal keyword(s): gravitational lensing: strong - supernovae: general - galaxies: clusters: general - cosmology: observations - dark matter

Nomenclature: [NRR2014] SN-AN (Nos A1, H1, L1-L2).

CDS comments: SN-A1 = [PMJ2014] CLA11Tib ; SN-H1 = [PMJ2014] CLN12Did ; SN-L2 = [PMJ2014] CLO12Car.

Simbad objects: 11

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Number of rows : 11

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 SN 2003it SN* 00 05 48.47 +27 27 09.6     17.2     SNIa 26 1
2 [PMJ2014] CLA11Tib SN* 02 48 01.27 -03 33 16.9   25.23       ~ 4 0
3 ACO 383 ClG 02 48 06.9 -03 29 32           ~ 296 0
4 SN 2005bf SN* 10 23 56.99 -03 11 29.3     18.0     SNIb 166 1
5 ACO 1689 ClG 13 11 29.5 -01 20 28           ~ 1017 0
6 ClG J1532+3021 ClG 15 32 53.8 +30 21 00           ~ 89 0
7 [PMJ2014] CLN12Did SN* 15 32 59.25 +30 21 42.8   24.03       ~ 4 0
8 GSC 02581-02323 * 16 31 33.8125078770 +30 08 46.398483547 13.576 12.972 12.917 12.564 12.212 G2V 62 0
9 ClG J1720+3536 ClG 17 20 16.8 +35 36 27           ~ 112 1
10 [PMJ2014] CLO12Car SN* 17 20 21.03 +35 36 40.9   25.35       ~ 4 0
11 SN 2007co SN* 18 23 03.60 +29 53 49.6 17.1 17.1 17.0     SNIa 46 1

    Equat.    Gal    SGal    Ecl

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2020.05.27-09:33:28

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