Articles with "gravitational lens" as a keyword



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lenstronomy: Multi-purpose gravitational lens modelling software package

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Published in 2018 at "Physics of the Dark Universe"

DOI: 10.1016/j.dark.2018.11.002

Abstract: We present Lenstronomy, a multi-purpose open-source gravitational lens modeling python package. Lenstronomy is able to reconstruct the lens mass and surface brightness distributions of strong lensing systems using forward modelling. Lenstronomy supports a wide range… read more here.

Keywords: multi purpose; package; gravitational lens; lenstronomy multi ... See more keywords
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Efficient gravitational lens optical scalars calculation of black holes with angular momentum

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Published in 2019 at "Monthly Notices of the Royal Astronomical Society"

DOI: 10.1093/mnras/stz3615

Abstract: We provide new very simple and compact expressions for the efficient calculation of gravitational lens optical scalars for Kerr space–time, which are exact along any null geodesic. These new results are obtained recurring to well-known… read more here.

Keywords: calculation black; optical scalars; lens optical; gravitational lens ... See more keywords
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Photometric imaging with the solar gravitational lens

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Published in 2020 at "Physical Review D"

DOI: 10.1103/physrevd.101.044025

Abstract: We discuss the optical properties of the solar gravitational lens (SGL). We estimate the power of the EM field received by an imaging telescope. Studying the behavior of the EM field at the photometric detector,… read more here.

Keywords: imaging solar; solar gravitational; power; gravitational lens ... See more keywords
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Gravitational lens without asymptotic flatness: Its application to Weyl gravity

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Published in 2020 at "Physical Review D"

DOI: 10.1103/physrevd.102.064060

Abstract: We discuss, without assuming asymptotic flatness, a gravitational lens for an observer and source that are within a finite distance from a lens object. The proposed lens equation is consistent with the deflection angle of… read more here.

Keywords: asymptotic flatness; gravitational lens; gravity; equation ... See more keywords
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Detection of extremely low frequency gravitational wave using gravitational lens

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Published in 2021 at "Physical Review D"

DOI: 10.1103/physrevd.103.103012

Abstract: The effect of gravitational wave of cosmological wavelength on the gravitational lensing is investigated. When the source, deflector, and observer are aligned in a highly symmetric configuration, an Einstein ring will be observed by the… read more here.

Keywords: source deflector; gravitational wave; deflector observer; gravitational lens ... See more keywords
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Navigating stellar wobbles for imaging with the solar gravitational lens

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Published in 2022 at "Physical Review D"

DOI: 10.1103/physrevd.105.044012

Abstract: The solar gravitational lens (SGL) offers unique capabilities for direct high-resolution imaging of faint, distant objects, such as exoplanets. For that purpose, in the near future, a spacecraft carrying a meter-class telescope with a solar… read more here.

Keywords: region; solar gravitational; gravitational lens; target ... See more keywords
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Putting gravity to work: Imaging of exoplanets with the solar gravitational lens

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Published in 2019 at "International Journal of Modern Physics D"

DOI: 10.1142/s0218271819501256

Abstract: The remarkable optical properties of the solar gravitational lens (SGL) include major brightness amplification ([Formula: see text] on the optical axis, at a wavelength of [Formula: see text]m) and extreme angular resolution ([Formula: see text][Formula:… read more here.

Keywords: putting gravity; solar gravitational; gravitational lens; formula see ... See more keywords