Gravitational Lens Time Delays in CDM

Abstract

In standard CDM halo models, the time delay of a gravitational lens is determined by the cold baryon mass fraction, f, of the visible galaxy relative to the overall halo. The observed time delays in PG1115+080, SBS1520+530, B1600+434 and HE2149-2745 give Hubble constants consistent with the HST Key Project value of H0=72+/-8 km/s Mpc only if f>0.2 (1-sided 68% confidence), which is larger than the upper bound of fmax=Omega_b/Omega_0=0.15+/-0.05 estimated from the CMB. If all available baryons cool and f=fmax then the time delays imply H0=65+/-6 km/s Mpc (95% confidence). If local inventories of cold baryons, f=0.013/h70, are correct, then H0=52+/-6 km/s Mpc and the halo parameters closely match isothermal mass models. Isothermal models are also consistent with strong and weak lens studies, stellar dynamics and X-ray observations on these scales, while significantly more centrally concentrated models are not. There is a a conflict between gravitational lens time delays, the local distance scale and standard CDM halo models.

Submitted to ApJ. 22 pages, 7 figures

References in corpus (16)

• A measurement by BOOMERANG of multiple peaks in the angular power spectrum of the cosmic microwave background
• Cosmological constraints from the X-ray gas mass fraction in relaxed lensing clusters observed with Chandra
• The internal structure and formation of early-type galaxies: the gravitational--lens system MG2016+112 at z=1.004
• Virial masses of galactic halos from galaxy-galaxy lensing: theoretical modeling and application to SDSS
• What Do Gravitational Lens Time Delays Measure?
• Is cosmology consistent?
• CDM and Strong Lensing: Concord or Conflict?
• Dynamical Confirmation of SDSS Weak Lensing Scaling Laws
• An Optical Time-Delay for the Lensed BAL Quasar HE2149-2745
• Time delay and lens redshift for the doubly imaged BAL quasar SBS1520+530
• PKS 1830-211: A Face-On Spiral Galaxy Lens
• Dissecting a galaxy: mass distribution of 2237+0305
• The Validity of the Adiabatic Contraction Approximation for Dark Matter Halos
• Cosmic alignment towards the radio Einstein ring PKS 1830-211 ?
• The lensing system towards the doubly imaged quasar SBS 1520+530
• Intrinsic Degeneracy of Gravitational Lens Time Delays: the case for a simple quadruple system in $\Lambda$CDM cosmology

Cited by in corpus (38)

• H0LiCOW XIII. A 2.4% measurement of $H_0$ from lensed quasars: $5.3\sigma$ tension between early and late-Universe probes
• Challenges for $\Lambda$CDM: An update
• The Sloan Lens ACS Survey. I. A Large Spectroscopically Selected Sample of Massive Early-Type Lens Galaxies
• Gravitational Lensing
• TDCOSMO IV: Hierarchical time-delay cosmography -- joint inference of the Hubble constant and galaxy density profiles
• H0LiCOW IV. Lens mass model of HE 0435-1223 and blind measurement of its time-delay distance for cosmology
• The Time Delays of Gravitational Lens HE0435-1223: An Early-Type Galaxy With a Rising Rotation Curve
• Gravitational Lens Time Delays: A Statistical Assessment of Lens Model Dependences and Implications for the Global Hubble Constant
• The Hubble Constant from the Gravitational Lens B1608+656
• Self-Similar Models for the Mass Profiles of Early-type Lens Galaxies
• Identifying Lenses with Small-Scale Structure. I. Cusp Lenses
• The Dark Universe
• The Importance of Lens Galaxy Environments
• Spectroscopic Gravitational Lensing and Limits on the Dark Matter Substructure in Q2237+0305
• Sloan Digital Sky Survey Spectroscopic Lens Search. I. Discovery of Intermediate-Redshift Star-Forming Galaxies Behind Foreground Luminous Red Galaxies
• A New Prescription for Protogalactic Feedback and Outflows: Where Have All the Baryons Gone?
• Quantifying Environmental and Line-of-Sight Effects in Models of Strong Gravitational Lens Systems
• Testing Bekenstein's Relativistic MOND gravity with Lensing Data
• The Hubble constant from gravitational lens CLASS B0218+357 using the Advanced Camera for Surveys
• Models for the lens and source of B0218+357 - A LensClean approach to determine H0
• COSMOGRAIL: the COSmological MOnitoring of GRAvItational Lenses VI. Redshift of the lensing galaxy in seven gravitationally lensed quasars
• Gravitational lensing in a concordance LCDM universe: The importance of secondary matter along the line of sight
• Radio, optical and infrared observations of CLASS B0128+437
• The Gravitational Lens -- Galaxy Group Connection. II. Groups Associated with B2319+051 and B1600+434
• Halo Structures of Gravitational Lens Galaxies
• Discs in early-type lensing galaxies: effects on magnification ratios and measurements of $H_0$
• The lensing properties of the Sersic model
• Discovery and first models of the quadruply lensed quasar SDSS J1433+6007
• Prospects for the Determination of H_0 through Observation of Multiply Imaged Supernovae in Galaxy Cluster Fields
• Generalized multi-plane gravitational lensing: time delays, recursive lens equation, and the mass-sheet transformation
• Chandra Observations of Gravitational Lenses B1600+434 and B1608+656
• Statistics of Quasars Multiply Imaged by Galaxy Clusters
• The SDSS Discovery of a Strongly Lensed Post-Starburst Galaxy at z=0.766
• Time-delay quasars: scales and orders of magnitudes
• The FIRST-Optical-VLA Survey for Lensed Radio Lobes
• Strong lensing, cosmology and lensing halos
• The Radio Variability of the Gravitational Lens PMN J1838-3427
• The Hubble constant from galaxy lenses: impacts of triaxiality and model degeneracies