========================================================================== J/MNRAS/437/1858 Strong lensing in RX J1347.5-1145 revisited (Kohlinger+, 2014) The following files can be converted to FITS (extension .fit or fit.gz) table2.dat ========================================================================== Query from: http://vizier.cds.unistra.fr/viz-bin/VizieR?-source=J/MNRAS/437/1858 ==========================================================================
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Beginning of ReadMe : J/MNRAS/437/1858 Galaxies in the RX J1347.5-1145 cluster (Kohlinger+, 2014) ================================================================================ Strong lensing in RX J1347.5-1145 revisited. Kohlinger F., Schmidt R.W. <Mon. Not. R. Astron. Soc., 437, 1858-1871 (2014)> =2014MNRAS.437.1858K ================================================================================ ADC_Keywords: Clusters, galaxy ; Morphology Keywords: gravitational lensing: strong - galaxies: clusters: individual: RX J1347.5-1145 - cosmology: observations Abstract: We present a revised strong lensing mass reconstruction of the galaxy cluster RX J1347.5-1145. The X-ray luminous cluster at redshift z=0.451 has already been studied intensively in the past. Based on information of two such previous (strong-) lensing studies by Halkola et al. (2008A&A...481...65H) and Bradac et al. (2008ApJ...681..187B), as well as by incorporating newly available data from the Cluster Lensing And Supernova survey with Hubble, we identified four systems of multiply lensed images (anew) in the redshift range 1.75<=z<=4.19. One multiple image system consists of in total eight multiply lensed images of the same source. The analysis based on a parametric mass model derived with the software GLAFIC suggests that the high image multiplicity is due to the source (z_phot_=4.19) being located on a so-called 'swallowtail' caustic. In addition to the parametric mass model, we also employed a non-parametric approach using the software pixelens in order to reconstruct the projected mass of the cluster using the same strong lensing data input. Both reconstructed mass models agree in revealing several mass components and a highly elliptic shape of the mass distribution. Furthermore, the projected mass inside, for example, a radius R 35arcsec 200kpc of the cluster for a source at redshift z=1.75 is M(<R) (2.19^+0.01^_-0.02_)*10^14^M_sun_ as estimated by GLAFIC. Within the same radius pixelens predicts a mass of M(<R) (2.47+/-0.01)*10^14^M_sun_which exceeds the GLAFIC estimate by 13 per cent. The difference could be related to the fundamental degeneracy involved when constraining dark matter substructures with gravitationally lensed arcs. Description: The galaxy cluster RX J1347.5-1145 was re-observed as one out of 25 galaxy cluster targets of the CLASH programme (cf. Postman et al. 2012ApJS..199...25P, Cat. J/ApJS/199/25 for full details on this survey). The images were taken in 16 broad-band filters of the Wide Field Camera 3 (WFC3)/UVIS,1 WFC3/IR2 and ACS/WFC3 of HST comprising a total spectral range from near-UV to near-IR, yielding highly reliable photometry.