2016MNRAS.461L..67B

Query : 2016MNRAS.461L..67B

2016MNRAS.461L..67B - Mon. Not. R. Astron. Soc., 461, L67-L71 (2016/September-1)

The Canarias Einstein ring: a newly discovered optical Einstein ring.

BETTINELLI M., SIMIONI M., APARICIO A., HIDALGO S.L., CASSISI S., WALKER A.R., PIOTTO G. and VALDES F.

Abstract (from CDS):

We report the discovery of an optical Einstein ring in the Sculptor constellation, IAC J010127-334319, in the vicinity of the Sculptor dwarf spheroidal galaxy. It is an almost complete ring (∼300deg) with a diameter of ∼4.5 arcsec. The discovery was made serendipitously from inspecting Dark Energy Camera (DECam) archive imaging data. Confirmation of the object nature has been obtained by deriving spectroscopic redshifts for both components, lens and source, from observations at the 10.4 m Gran Telescopio CANARIAS (GTC) with the spectrograph OSIRIS. The lens, a massive early-type galaxy, has a redshift of z=0.581, while the source is a starburst galaxy with redshift of z=1.165. The total enclosed mass that produces the lensing effect has been estimated to be M_tot=(1.86±0.23) x 10^12 M_☉.

Abstract Copyright: © 2016 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): gravitational lensing: strong - galaxies: distances and redshifts - galaxies: elliptical and lenticular, cD - galaxies: evolution - galaxies: starburst - galaxies: starburst

Nomenclature: IAC J010127.83-334319.6 N=1 = NAME Canarias Einstein ring N=1. [BSA2016] lens N=1. [BSA2016] source N=1.

Simbad objects: 10

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Number of rows : 10
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 NAME 8 O'Clock Arc blu 00 22 40.77984 +14 31 13.9548           ~ 66 0
2 NAME Sculptor Dwarf Galaxy G 01 00 09.4 -33 42 32   9.79 8.6 8.81   ~ 1498 4
3 NAME IAC J010127.83-334319.6 source LeG 01 01 27.8 -33 43 19           ~ 2 0
4 AGEL J010128-334319 system gLS 01 01 27.830 -33 43 19.68           ~ 6 0
5 NAME IAC J010127.83-334319.6 lens G 01 01 27.85 -33 43 19.2           ~ 3 0
6 4C 05.51 rG 11 31 56.493 +04 55 48.85           ~ 123 1
7 GD 140 WD* 11 37 05.1041466528 +29 47 58.288741080 11.47 12.42 12.45 12.73 12.714 DA2.2 257 0
8 CSWA 1 gLS 11 48 33.10 +19 30 03.2           ~ 90 0
9 NAME the Clone gLS 12 06 02.09 +51 42 29.5           ~ 45 0
10 NAME Cosmic Eye G 21 35 12.730 -01 01 42.90           ~ 92 0

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