2013MNRAS.434.3305E

Query : 2013MNRAS.434.3305E

2013MNRAS.434.3305E - Mon. Not. R. Astron. Soc., 434, 3305-3309 (2013/October-1)

Search for gravitational lens candidates in the XMM-LSS/CFHTLS common field.

ELYIV A., MELNYK O., FINET F., POSPIESZALSKA-SURDEJ A., CHIAPPETTI L., PIERRE M., SADIBEKOVA T. and SURDEJ J.

Abstract (from CDS):

Our aim was to identify gravitational lens candidates among some 5500 optical counterparts of the X-ray point-like sources in the medium-deep ∼ 11 deg2 XMM-LSS survey. We have visually inspected the optical counterparts of each QSOs/AGN using CFHTLS T006 images. We have selected compact pairs and groups of sources which could be multiply imaged QSO/AGN. We have measured the colours and characterized the morphological types of the selected sources using the multiple point spread function fitting technique. We found three good gravitational lens candidates: J021511.4-034306, J022234.3-031616 and J022607.0-040301 which consist of pairs of point-like sources having similar colours. On the basis of a colour-colour diagram and X-ray properties we could verify that all these sources are good QSO/AGN candidates rather than stars. Additional secondary gravitational lens candidates are also reported.

Abstract Copyright: © 2013 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society (2013)

Journal keyword(s): gravitational lensing: strong

Nomenclature: Table 1, Fig. 1: [EMF2013b] JHHMMSS.s+DDMMSS N=18, [EMF2013b] JHHMMSS.s+DDMMSS A N=38.

Simbad objects: 8

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Number of rows : 8
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 QSO B0142-100 QSO 01 45 16.5958283760 -09 45 17.265131352   17.23 16.95     ~ 247 1
2 [EMF2013b] J021511.4-034306 LS? 02 15 11.4 -03 43 06           ~ 1 0
3 NAME XMM-LSS Field reg 02 18 00 -07 00.0           ~ 347 0
4 [EMF2013b] J022234.3-031616 LS? 02 22 34.3 -03 16 16           ~ 1 0
5 [EMF2013b] J022607.0-040301 LS? 02 26 07.0 -04 03 01           ~ 1 0
6 NAME Extended Chandra Deep Field South reg 03 32 30.0 -27 48 20           ~ 862 0
7 [VV2006] J043814.8-122314 QSO 04 38 14.88 -12 17 14.6     17.15     ~ 245 2
8 NAME COSMOS Field reg 10 00 28.60 +02 12 21.0           ~ 3639 0

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