Showing 181 - 200 results of 593 for search '"gravitational lensing"', query time: 0.13s Refine Results
  1. 181

    LoTSS/HETDEX: Disentangling star formation and AGN activity in gravitationally lensed radio-quiet quasars by Stacey, HR, McKean, JP, Jackson, NJ, Best, PN, Rivera, GC, Callingham, JR, Duncan, KJ, Gurkan, G, Hardcastle, MJ, Iacobelli, M, Mechev, AP, Morabito, LK, Prandoni, I, Rottgering, HJA, Sabater, J, Shimwell, TW, Tasse, C, Williams, WL

    Published 2019
    “…We present the detection of the gravitationally lensed radio-quiet quasars SDSS J1055+4628, SDSS J1313+5151, and SBS 1520+530 at 144 MHz, which fall in the HETDEX Spring Field targeted in the LOFAR Two-metre Sky Survey (LoTSS) first full data release. …”
    Journal article
  2. 182

    The Atacama Cosmology Telescope: temperature and gravitational lensing power spectrum measurements from three seasons of data by Das, S, Louis, T, Nolta, MR, Addison, G, Battistelli, E, Bond, JR, Calabrese, E, Crichton, D, Devlin, M, Dicker, S, Dunkley, J, Duenner, R, Fowler, J, Gralla, M, Hajian, A, Halpern, M, Hasselfield, M, Hilton, M, Hincks, A, Hlozek, R, Huffenberger, K, Hughes, J, Irwin, K, Kosowsky, A, Lupton, R

    Published 2014
    “…We also present a measurement of the CMB gravitational lensing convergence power spectrum at 4.6σ detection significance. © 2014 IOP Publishing Ltd and Sissa Medialab srl.…”
    Journal article
  3. 183

    Resolving star formation on subkiloparsec scales in the high-redshift galaxy SDP.11 using gravitational lensing by Lamarche, C, Verma, A, Vishwas, A, Stacey, G, Brisbin, D, Ferkinhoff, C, Nikola, T, Higdon, S, Higdon, J, Tecza, M

    Published 2018
    “…This is consistent with the high intrinsic FIR luminosity (~3 × 1012 L ⊙), ~16 Myr gas depletion timescale, and lesssim8 Myr timescale since the last starburst episode, estimated from the hardness of the UV radiation field. By applying gravitational lensing models to the visibilities in the uv-plane, we find that the lensing magnification factor varies by a factor of two across SDP.11, affecting the observed line profiles. …”
    Journal article
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    Motion of particles and gravitational lensing around the (2+1)-dimensional BTZ black hole in Gauss–Bonnet gravity by Bakhtiyor Narzilloev, Sanjar Shaymatov, Ibrar Hussain, Ahmadjon Abdujabbarov, Bobomurat Ahmedov, Cosimo Bambi

    Published 2021-09-01
    “…Further, we consider the gravitational lensing, to test the GB gravity in (2+1) dimensions and show that the presence of the GB parameter causes the bending angle to first increase with the increase in the inverse of the closest approach distance, $$u_0$$ u 0 , reaching a peak value for a specific $$u_0^*$$ u 0 ∗ , and then decreasing to zero. …”
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  20. 200

    Pixelated Reconstruction of Foreground Density and Background Surface Brightness in Gravitational Lensing Systems Using Recurrent Inference Machines by Alexandre Adam, Laurence Perreault-Levasseur, Yashar Hezaveh, Max Welling

    Published 2023-01-01
    “…Modeling strong gravitational lenses in order to quantify distortions in the images of background sources and to reconstruct the mass density in foreground lenses has been a difficult computational challenge. …”
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    Article