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Gravitational lensing by massless braneworld black holes
(American Physical Society, 2012-10)
In this paper, we study massless braneworld black holes as gravitational lenses. We find the weak and the strong deflection limits for the deflection angle, from which we calculate the positions and magnifications of the ...
Elements of a gravitational lens system assuming an elliptical galaxy model
(Revista Mexicana de Astronomia y Astrofisica, 2018)
Efficient gravitational lens optical scalars calculation of black holes with angular momentum
(Wiley Blackwell Publishing, Inc, 2020-03)
We provide new very simple and compact expressions for the efficient calculation of gravitational lens optical scalars for Kerr space-time, which are exact along any null geodesic. These new results are obtained recurring ...
Compact Groups analysis using weak gravitational lensing II: CFHT Stripe 82 data
(Wiley Blackwell Publishing, Inc, 2018-09)
In this work we present a lensing study of Compact Groups (CGs) using data obtained from the high-quality Canada-France-Hawaii Telescope Stripe 82 Survey. Using stacking techniques we obtain the average density contrast ...
THE SLOAN NEARBY CLUSTER WEAK LENSING SURVEY
(IOP PUBLISHING LTD, 2009)
We describe and present initial results of a weak lensing survey of nearby (z less than or similar to 0.1) galaxy clusters in the Sloan Digital Sky Survey (SDSS). In this first study, galaxy clusters are selected from the ...
Compact group analysis using weak gravitational lensing
(Oxford University Press, 2017-05)
We present a weak lensing analysis of a sample of Sloan Digital Sky Survey compact groups (CGs). Using the measured radial density contrast profile, we derive the average masses under the assumption of spherical symmetry, ...
On the weak lensing masses of a new sample of galaxy groups
(Oxford University Press, 2021-04)
Galaxy group masses are important to relate these systems with the dark matter halo hosts. However, deriving accurate mass estimates is particularly challenging for low-mass galaxy groups. Moreover, calibration of observational ...
Low X-ray luminosity galaxy clusters - III. Weak lensing mass determination at 0.18 < z < 0.70
(Wiley Blackwell Publishing, Inc, 2015-10)
This is the third of a series of papers of low X-ray luminosity galaxy clusters. In this work we present the weak lensing analysis of eight clusters, based on observations obtained with the Gemini Multi-Object Spectrograph ...
Dissecting the Strong-lensing Galaxy Cluster MS 0440.5+0204. I. The Mass Density Profile
(The American Astronomical Society, 2020)
We present a parametric strong-lensing modeling of the galaxy cluster MS 0440.5+0204 (located at z = 0.19). We have performed a strong-lensing mass reconstruction of the cluster using three different models. The first model ...