{ "id": "astro-ph/0110099", "version": "v2", "published": "2001-10-04T15:03:35.000Z", "updated": "2001-10-05T00:18:40.000Z", "title": "High resolution observations and mass modelling of the CLASS gravitational lens B1152+199", "authors": [ "D. Rusin", "M. Norbury", "A. D. Biggs", "D. R. Marlow", "N. J. Jackson", "I. W. A. Browne", "P. N. Wilkinson", "S. T. Myers" ], "comment": "7 pages, post-referee revision for MNRAS", "journal": "Mon.Not.Roy.Astron.Soc. 330 (2002) 205", "doi": "10.1046/j.1365-8711.2002.05043.x", "categories": [ "astro-ph" ], "abstract": "We present a series of high resolution radio and optical observations of the CLASS gravitational lens system B1152+199 obtained with the Multi-Element Radio-Linked Interferometer Network (MERLIN), Very Long Baseline Array (VLBA) and Hubble Space Telescope (HST). Based on the milliarcsecond-scale substructure of the lensed radio components and precise optical astrometry for the lensing galaxy, we construct models for the system and place constraints on the galaxy mass profile. For a single galaxy model with surface mass density Sigma(r) propto r^-beta, we find that 0.95 < beta < 1.21 at 2-sigma confidence. Including a second deflector to represent a possible satellite galaxy of the primary lens leads to slightly steeper mass profiles.", "revisions": [ { "version": "v2", "updated": "2001-10-05T00:18:40.000Z" } ], "analyses": { "keywords": [ "high resolution observations", "mass modelling", "class gravitational lens system", "surface mass density sigma", "slightly steeper mass profiles" ], "tags": [ "journal article" ], "note": { "typesetting": "TeX", "pages": 7, "language": "en", "license": "arXiv", "status": "editable", "inspire": 577162 } } }