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Theory of gravitational lensing on a curved cosmic string
European Physical Journal C: Particles and Fields, 2023 It is discussed in detail the complete mathematical model of gravitational lensing on a single cosmic string (CS) of general shape and position with respect to the line of sight.
Igor I. Bulygin +2 more
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THE OPTIMAL GRAVITATIONAL LENS TELESCOPE [PDF]
The Astronomical Journal, 2010 Given an observed gravitational lens mirage produced by a foreground deflector (cf. galaxy, quasar, cluster,...), it is possible via numerical lens inversion to retrieve the real source image, taking full advantage of the magnifying power of the cosmic lens. This has been achieved in the past for several remarkable gravitational lens systems.
Surdej, Jean +10 more
openaire +5 more sources
The inner mass power spectrum of galaxies using strong gravitational lensing: beyond linear approximation [PDF]
, 2017 In the last decade the detection of individual massive dark matter sub-halos has been possible using potential correction formalism in strong gravitational lens imaging.
Chatterjee, Saikat +1 more
core +3 more sources
GRAVITATIONAL LENS MODELING WITH BASIS SETS [PDF]
The Astrophysical Journal, 2015 14 pages, 10 figures, accepted for publication in ...
Simon Birrer +2 more
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High Resolution Gravitational Lens Model
Open Astronomy, 2015 A new model of gravitational lens – high-resolution gravitational lens based on the metric of gravitational field produced by N moving and rotating finite-sized bodies – is proposed. The model is applied to the case of a double galaxy gravitational lens.
Chechin L. M.
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‘Missing image’ in gravitational lens systems? [PDF]
Nature, 1986 The gravitational lens models involving extended mass distribution generally predict an odd number of images with one of the images close to the centre of the principal lensing galaxy. In all the observed lens systems only an even number of images have been unambigously detected so far.
D. Narasimha +2 more
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THE ANALYSIS OF IMAGES OF A CIRCULAR SOURCE IN N-POINT GRAVITATIONAL LENSES
Odessa Astronomical Publications, 2018 Currently, in the field of computer processing, there are difficulties. When processing astrophysical experimental data, the difficulties are connected, on the one hand, with a large amount of information that requires processing, and, on the other hand,
S. D. Bronza +2 more
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The cosmological lens equation and the equivalent single-plane gravitational lens [PDF]
, 1997 The gravitational lens equation resulting from a single (non-linear) mass concentration (the main lens) plus inhomogeneities of the large-scale structure is shown to be strictly equivalent to the single-plane gravitational lens equation without the ...
Schneider, Peter
core +3 more sources
Search for gravitational lens candidates in the XMM-LSS/CFHTLS common field [PDF]
, 2013 Our aim was to identify gravitational lens candidates among some 5500 optical counterparts of the X-ray point-like sources in the medium-deep ~11 sq. deg. XMM-LSS survey.
Chiappetti, L. +7 more
core +2 more sources
MOA-2020-BLG-208Lb: Cool Sub-Saturn-mass Planet within Predicted Desert
The Astronomical Journal, 2023 We analyze the MOA-2020-BLG-208 gravitational microlensing event and present the discovery and characterization of a new planet, MOA-2020-BLG-208Lb, with an estimated sub-Saturn mass.
Greg Olmschenk +82 more
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