Results 31 to 40 of about 70,851 (245)
The Effects of Finite Distance on the Gravitational Deflection Angle of Light
Universe, 2019 In order to clarify the effects of the finite distance from a lens object to a light source and a receiver, the gravitational deflection of light has been recently reexamined by using the Gauss−Bonnet (GB) theorem in differential geometry (Ishihara
Toshiaki Ono, Hideki Asada
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Quantum Uncertainty Considerations for Gravitational Lens Interferometry
, 2008 The measurement of the gravitational lens delay time between light paths has relied, to date, on the source having sufficient variability to allow photometric variations from each path to be compared. However, the delay times of many gravitational lenses
Carico, David P., Doyle, Laurance R.
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Using gravitational lenses to detect gravitational waves [PDF]
, 1990 Gravitational lenses could be used to detect gravitational waves, because a gravitational wave affects the travel-time of a light ray. In a gravitational lens, this effect produces time-delays between the different images.
Allen, B.
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The Astrophysical Journal, 2022 We present new light curves for the four bright images of the five image cluster-lensed quasar gravitational lens system SDSS J1004+4112. The light curves span 14.5 yr and allow the measurement of the time delay between the trailing bright quasar image D
J. A. Muñoz +5 more
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The Effects of Massive Substructures on Image Multiplicities in Gravitati onal Lenses
, 2003 Surveys for gravitational lens systems have typically found a significantly larger fraction of lenses with four (or more) images than are predicted by standard ellipsoidal lens models (50% versus 25-30%).
C. S. Kochanek +6 more
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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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A Systematic Review of Strong Gravitational Lens Modeling Software
, 2013 Despite expanding research activity in gravitational lens modeling, there is no particular software which is considered a standard. Much of the gravitational lens modeling software is written by individual investigators for their own use.
Aazami +39 more
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GRAVITATIONAL LENS CANDIDATES IN THE E-CDFS [PDF]
The Astrophysical Journal, 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 ...
Haeussler, B. +6 more
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Exoplanet Searches by Future Deep Space Missions
EPJ Web of Conferences, 2011 The search for exoplanets could benefit from gravitational lensing if we could get to 550 AU from the Sun and beyond. This is because the gravitational lens of the Sun would highly intensify there any weak electromagnetic wave reaching the solar system ...
Maccone C.
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Numerical Investigation on Magnetically Actuated Tunable Micro Liquid Lens [PDF]
MATEC Web of Conferences, 2020 In this paper, magnetically actuated tunable liquid lens is fundamentally studied to have further potential application scope in research, industrial, aeronautical and astronautical areas.
Wu Shi-Hua, Zhu Gui-Ping, Huang Hu-Lin
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