Is B1422+231 a Golden Lens?

Abstract

B1422+231 is a quadruply-imaged QSO with an exceptionally large lensing contribution from group galaxies other than the main lensing galaxy. We detect diffuse X-rays from the galaxy group in archival Chandra observations; the inferred temperature is consistent with the published velocity dispersion. We then explore the range of possible mass maps that would be consistent with the observed image positions, radio fluxes, and ellipticities. Under plausible but not very restrictive assumptions about the lensing galaxy, predicted time delays involving the faint fourth image are fairly well constrained around 7/h days.

arXiv comment17 pages, 9 figures, to appear in the June/03 issue of AJ

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Cited by in corpus (16)

• A portable modeler of lensed quasars
• The Hubble time inferred from 10 time-delay lenses
• The Hubble constant inferred from 18 time-delay lenses
• Constraining Warm Dark Matter using QSO gravitational lensing
• X-ray Selected Intermediate-Redshift Groups of Galaxies
• Models of the giant quadruple quasar SDSS J1004+4112
• Radial density profiles of time-delay lensing galaxies
• Meso-structure in three strong-lensing systems
• Light versus dark in strong-lens galaxies: Dark matter haloes that are rounder than their stars
• Detection of x-rays from galaxy groups associated with the gravitationally lensed systems PG 1115+080 and B1422+231
• Chandra Observations of Gravitational Lenses B1600+434 and B1608+656
• Galaxy-lens determination of $H_0$: the effect of the ellipse+shear modeling assumption
• Time-delay quasars: scales and orders of magnitudes
• XMM-Newton reveals a Seyfert-like X-ray spectrum in the z=3.6 QSO B1422+231
• Constraining the neutrino emission of gravitationally lensed Flat-Spectrum Radio Quasars with ANTARES data
• A VLA monitoring study of JVAS B1422+231: investigation of time delays and detection of extrinsic variability