COSMOGRAIL: the COSmological MOnitoring of GRAvItational Lenses

2006/12/31 by A. Eigenbrod, F. Courbin, G. Meylan · 2 citations
Physics and Astronomy · #Astronomy #Astronomy and Astrophysical Research #Astrophysics #Galaxies: Formation, Evolution, Phenomena #Galaxy #Gamma-ray bursts and supernovae #Gravitational lens #Lens (geology) #Optics #Physics #Quasar #Redshift #Stars #Strong gravitational lensing #Weak gravitational lensing #astro-ph

paper · pdf · doi:10.1051/0004-6361:20066939

7 pages, 13 figures, accepted for publication in A&A

arxiv created 2007/01/19 · openalex publication_date 2007/01/22 · arxiv updated 2009/12/01 · openalex created_date 2022/05/12 · openalex updated_date 2026/08/05

Abstract

Aims.The knowledge of the redshift of a lensing galaxy that produces multiple images of a background quasar is essential to any subsequent modeling, whether related to the determination of the Hubble constant H0 or to the mass profile of the lensing galaxy. We present the results of our ongoing spectroscopic observations of gravitationally lensed quasars in order to measure the redshift of their lensing galaxies. We report on the determination of the lens redshift in seven gravitationally lensed systems.

Citations

• The Fundamental Plane of Gravitational Lens Galaxies and The Evolution of Early‐Type Galaxies in Low‐Density Environments
• An optical time-delay for the lensed BAL quasar HE 2149-2745
• WFI J2026-4536 and WFI J2033-4723: Two New Quadruple Gravitational Lenses
• 0957 + 561 A, B: twin quasistellar objects or gravitational lens?
• The First FIRST Gravitationally Lensed Quasar: FBQ 0951+2635
• Velocity dispersions and mass-to-light ratios for elliptical galaxies
• A search for clusters and groups of galaxies on the line of sight towards 8 lensed quasars

Cited by

• DIFFERENTIAL X-RAY ABSORPTION AND DUST-TO-GAS RATIOS OF THE LENS GALAXIES SBS 0909+523, FBQS 0951+2635, AND B 1152+199
• How robust are the constraints on cosmology and galaxy evolution from the lens-redshift test?