60 citations · 145 across the 10 of their papers we have counts for
10 papers
Could the cosmic acceleration be transient? A cosmographic evaluation
Antonio C. C. Guimarães, José Ademir S. Lima
A possible slowing down of the cosmic expansion is investigated through a cosmographic approach. By expanding the luminosity distance to fourth order and fitting the SN Ia data fro…
Density profile, velocity anisotropy and line-of-sight external convergence of SLACS gravitational lenses
Antonio C. C. Guimarães, Laerte Sodré
Data from 58 strong-lensing events surveyed by the Sloan Lens ACS Survey are used to estimate the projected galaxy mass inside their Einstein radii by two independent methods: stel…
Bayesian Analysis and Constraints on Kinematic Models from Union SNIa
A. C. C. Guimarães, J. V. Cunha, J. A. S. Lima
The kinematic expansion history of the universe is investigated by using the 307 supernovae type Ia from the Union Compilation set. Three simple model parameterizations for the dec…
Bayesian analysis of joint strong gravitational lensing and dynamic galactic mass in SLACS: evidence of line-of-sight contamination
Antonio C. C. Guimarães, Laerte Sodré
We readdress the calculation of the mass of early-type galaxies using strong gravitational lensing and stellar dynamics. Our sample comprises 27 galaxies in the Sloan Lens ACS (SLA…
Lensing Magnification and QSO-Galaxy Cross-Correlations: Observations, Theory and Simulations
Antonio C. C. Guimarães
We review observations and gravitational lensing theory related to the magnification of background QSOs by intervening overdensities, and the induced cross-correlation between sour…
QSO lensing magnification associated with galaxy groups
Antonio C. C. Guimarães, Adam D. Myers, Tom Shanks
We simulated both the matter and light (galaxy) distributions in a wedge of the universe and calculated the gravitational lensing magnification caused by the mass along the line of…