Showing 1 - 20 results of 21 for search '"gravitational lensing"', query time: 0.07s Refine Results
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    Shadow and strong gravitational lensing of new wormhole solutions supported by embedding Class-I condition by Niyaz Uddin Molla, Himanshu Chaudhary, Ujjal Debnath, G. Mustafa, S. K. Maurya

    Published 2025-01-01
    “…We investigate the shadow and strong gravitational lensing by the wormhole throat for the two new wormhole models, namely Model-I and Model-II. …”
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    Gravitational Lensing of Charged Ayon-Beato-Garcia Black Holes and Nonlinear Effects of Maxwell Fields by H. Ghaffarnejad, M. Amirmojahedi, H. Niad

    Published 2018-01-01
    “…In this paper we study weak and strong gravitational lensing of light rays by seeking effects of NEM fields counterpart on image locations and corresponding magnification. …”
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    Axially Symmetric Null Dust Space-Time, Naked Singularity, and Cosmic Time Machine by Faizuddin Ahmed

    Published 2017-01-01
    “…The radial geodesics near the singularity and the gravitational lensing (GL) will be discussed. The physical interpretation of this solution, based on the study of the equation of the geodesic deviation, will be presented. …”
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    Astronomical Signatures of Dark Matter by Paul Gorenstein, Wallace Tucker

    Published 2014-01-01
    “…Distorted shapes of galaxies and other features created by gravitational lensing in the images of many astronomical objects require an amount of dark matter consistent with other estimates. …”
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    A Cohesive Deep Drilling Field Strategy for LSST Cosmology by Philippe Gris, Humna Awan, Matthew R. Becker, Huan Lin, Eric Gawiser, Saurabh W. Jha, The LSST Dark Energy Science Collaboration

    Published 2024-01-01
    “…The DDFs are a critical piece of three key aspects of the LSST Dark Energy Science Collaboration (DESC) cosmological measurements: they provide a required calibration for photometric redshifts (photo- z ) and weak gravitational lensing (WL) measurements and they directly contribute to cosmological constraints from the most distant Type Ia supernovae (SNe Ia). …”
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    Early Results from GLASS-JWST. XXV. Electron Density in the Interstellar Medium at 0.7 ≲ z ≲ 9.3 with NIRSpec High-resolution Spectroscopy by Sijia Li, Xin Wang, Yuguang Chen, Tucker Jones, Tommaso Treu, Karl Glazebrook, Xianlong He, Alaina Henry, Xiao-Lei Meng, Takahiro Morishita, Guido Roberts-Borsani, Lilan Yang, Hao-Ran Yu, Antonello Calabrò, Marco Castellano, Nicha Leethochawalit, Benjamin Metha, Themiya Nanayakkara, Namrata Roy, Benedetta Vulcani

    Published 2025-01-01
    “…Using the high-resolution spectra obtained from the JWST Near-Infrared Spectrograph (NIRSpec) microshutter assembly (MSA) as part of the GLASS-JWST program, we have assembled the largest sample to date (34 galaxies) with individual n _e measurements derived from the [O ii ] λλ 3726, 29 and/or [S ii ] λλ 6718, 32 doublets at 0.7 ≲  z  ≲ 9.3. The gravitational lensing magnification by the foreground A2744 cluster allows us to probe n _e in galaxies with stellar masses ( M _* ) down to ≃10 ^7.5 M _⊙ across the entire redshift range. …”
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