2011ApJ...742L...7A

Query : 2011ApJ...742L...7A

2011ApJ...742L...7A - Astrophys. J., 742, L7 (2011/November-3)

A highly magnified supernova at z = 1.703 behind the massive galaxy cluster A1689.

AMANULLAH R., GOOBAR A., CLEMENT B., CUBY J.-G., DAHLE H., DAHLEN T., HJORTH J., FABBRO S., JONSSON J., KNEIB J.-P., LIDMAN C., LIMOUSIN M., MILVANG-JENSEN B., MORTSELL E., NORDIN J., PAECH K., RICHARD J., RIEHM T., STANISHEV V. and WATSON D.

Abstract (from CDS):

Our ability to study the most remote supernova explosions, crucial for the understanding of the evolution of the high-redshift universe and its expansion rate, is limited by the light collection capabilities of telescopes. However, nature offers unique opportunities to look beyond the range within reach of our unaided instruments thanks to the light-focusing power of massive galaxy clusters. Here we report on the discovery of one of the most distant supernovae ever found, at redshift z = 1.703. Due to a lensing magnification factor of 4.3±0.3, we are able to measure a light curve of the supernova, as well as spectroscopic features of the host galaxy with a precision comparable to what would otherwise only be possible with future generation telescopes.

Abstract Copyright: ∼

Journal keyword(s): galaxies: clusters: individual: A1689 - galaxies: distances and redshifts - gravitational lensing: weak - supernovae: general

Nomenclature: Fig. 1: [AGC2011] SN N=1.

Simbad objects: 6

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Number of rows : 6
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 SN 1997ff SN* 12 36 44.10 +62 12 44.7         26.77 SNIa 67 1
2 NAME Hubble Deep Field reg 12 36 49.5 +62 12 58           ~ 1967 1
3 ACO 1689 ClG 13 11 29.5 -01 20 28           ~ 1178 0
4 [AGC2011] SN SN* 13 11 30.0 -01 20 28           ~ 2 0
5 NAME Subaru Deep Field NGP reg 13 24 21.3 +27 29 23           ~ 330 1
6 SN 1999el SN* 20 37 18.03 +66 06 11.9     14.9     SNIIn 74 1

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