Results 1 to 10 of about 93,016 (319)
Fixed points of mapping of N-point gravitational lenses [PDF]
Odessa Astronomical Publications, 2018 In this paper, we study fixed points of N-point gravitational lenses. We use complex form of lens mapping to study fixed points. Complex form has an advantage over coordinate one because we can describe N-point gravitational lens by system of two equation ...
A. T. Kotvytskiy +2 more
doaj +2 more sources
The Optimal Gravitational Lens Telescope [PDF]
J. Surdej et al 2010 The Astronomical Journal 139 1935, 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.
Dimitri Mawet +11 more
arxiv +12 more sources
Gravitational lens candidates in the E-CDFS [PDF]
Astrophys.J.734:69,2011, 2011 We report ten lens candidates in the E-CDFS from the GEMS survey. Nine of the systems are new detections and only one of the candidates is a known lens system. For the most promising five systems including the known lens system, we present results from preliminary lens mass modelling, which tests if the candidates are plausible lens systems ...
Surhud More +7 more
arxiv +9 more sources
Unveiling the Mysteries of the Chinese lens zonule balance tension: A statistical analysis [PDF]
HeliyonBackground: This study aims to provide an estimated dataset of lens zonule balance tension (LZBT) measurements in cataractous lenses among Chinese patients and to conduct a statistical analysis of anterior segment parameters.
Lujie Zhang +7 more
doaj +2 more sources
Imaging with a gravitational lens: the geometric view [PDF]
MNRAS 527(1):1141-1145 (2024), 2023 We investigate imaging point sources with a monopole gravitational lens, such as the Solar Gravitational Lens in the geometric optics limit. We compute the light amplification of the lens used in conjunction with a telescope featuring a circular aperture that is placed in the focal region of the lens, compared to the amount of light collected by the ...
arxiv +1 more source
The Gravitational Lens CFRS 03.1077 [PDF]
The Astrophysical Journal, 2002 11 pages, 5 figures, accepted by Ap ...
O. Le Fevre +8 more
openaire +5 more sources
Gravitational Lensing of Continuous Gravitational Waves
Universe, 2021 Continuous gravitational waves are analogous to monochromatic light and could therefore be used to detect wave effects such as interference or diffraction. This would be possible with strongly lensed gravitational waves.
Marek Biesiada, Sreekanth Harikumar
doaj +1 more source
DETERMINE THE EFFECTIVE PARAMETERS IN GRAVITATIONAL LENSES AND STUDY THE ALTERNATIVE EFFECTS BETWEEN THEM [PDF]
مجلة جامعة الانبار للعلوم الصرفة, 2012 The importance of the gravitational lens in cosmology and astronomy, and a brief historical review for the evolution of the gravitational lenses have been introduced.
S. A.AL-SABAAWE, M. A.AL-OBAYDE
doaj +1 more source
Gravitational Lensing of Supernova Neutrino Bursts
Universe, 2021 Supernova neutrino bursts have been observed from extragalactic distances. This note addresses the question of how gravitational lensing could distort the information in the burst.
John M. LoSecco
doaj +1 more source
Gravitational lens time delays and gravitational waves [PDF]
Physical Review D, 1994 Using Fermat's principle, we analyze the effects of very long wavelength gravitational waves upon the images of a gravitationally lensed quasar. We show that the lens equation in the presence of gravity waves is equivalent to that of a lens with different alignment between source, deflector, and observer in the absence of gravity waves.
Diego D. Harari +3 more
openaire +4 more sources