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The solar gravitational lens (SGL) provides a factor of $10^{11}$ amplification for viewing distant point sources beyond our solar system. As such, it may be used for resolved imaging of extended sources, such as exoplanets, not possible…

Instrumentation and Methods for Astrophysics · Physics 2024-02-14 Louis D. Friedman , Darren Garber , Slava G. Turyshev , Henry Helvajian , Thomas Heinshiemer , John McVey , Artur R. Davoyan

We present initial results of an ongoing engineering study on the feasibility of a space mission to the focal region of the solar gravitational lens (SGL). The mission goal is to conduct exoplanet imaging operations at heliocentric…

Instrumentation and Methods for Astrophysics · Physics 2023-06-01 Henry Helvajian , Alan Rosenthal , John Poklemba , Thomas A. Battista , Marc D. DiPrinzio , Jon M. Neff , John P. McVey , Viktor T. Toth , Slava G. Turyshev

The remarkable optical properties of the solar gravitational lens (SGL) include major brightness amplification (~1e11 at wavelength of 1 um) and extreme angular resolution (~1e-10 arcsec) in a narrow field of view. A mission to the SGL…

The Solar Gravitational Lens (SGL) allows for major brightness amplification ($\sim 10^{11}$ at wavelength of $1~\mu$m) and extreme angular resolution ($\sim10^{-10}$ arcsec) within a narrow field of view. A meter-class telescope, with a…

We utilize the well-established properties of the solar gravitational lens (SGL) to consider realistic observational scenarios. Actual exoplanets, which may be the target of an SGL observational campaign, are not stationary. Their…

Earth and Planetary Astrophysics · Physics 2023-09-28 Viktor T. Toth , Slava G. Turyshev

We examined the solar gravitational lens (SGL) as the means to produce direct high-resolution, multipixel images of exoplanets. The properties of the SGL are remarkable: it offers maximum light amplification of ~1e11 and angular resolution…

We discuss the feasibility of direct multipixel imaging of exoplanets with the solar gravitational lens (SGL) in the context of a realistic deep space mission. For this, we consider an optical telescope, placed in the image plane that forms…

Earth and Planetary Astrophysics · Physics 2022-08-25 Slava G. Turyshev , Viktor T. Toth

We study image formation with the solar gravitational lens (SGL). We consider a point source that is positioned at a large but finite distance from the Sun. We assume that an optical telescope is positioned in the image plane, in the focal…

General Relativity and Quantum Cosmology · Physics 2020-02-25 Slava G. Turyshev , Viktor T. Toth

We consider the optical properties of the solar gravitational lens (SGL) treating the Sun as a massive compact body. Using our previously developed wave-optical treatment of the SGL, we convolve it with a thin-lens representing an optical…

Instrumentation and Methods for Astrophysics · Physics 2022-08-29 Slava G. Turyshev , Viktor T. Toth

Exoplanet imaging using the solar gravitational lens is an enticing prospect. The fundamental physical properties of the lens, including its angular resolution and light amplification, promise exceptional capabilities. These expectations,…

Instrumentation and Methods for Astrophysics · Physics 2025-05-30 Viktor T. Toth

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, we develop expressions that…

Instrumentation and Methods for Astrophysics · Physics 2020-02-14 Slava G. Turyshev , Viktor T. Toth

The prospect of combining integral field spectroscopy with the solar gravitational lens (SGL) to spectrally and spatially resolve the surfaces and atmospheres of extrasolar planets is investigated. The properties of hyperbolic orbits…

Instrumentation and Methods for Astrophysics · Physics 2022-05-02 Alexander Madurowicz , Bruce Macintosh

We investigate the optical properties of the solar gravitational lens (SGL) with respect to an extended source located at a large but finite distance from the Sun. The static, spherically symmetric gravitational field of the Sun is modeled…

General Relativity and Quantum Cosmology · Physics 2019-10-14 Slava G. Turyshev , Viktor T. Toth

We consider resolved imaging of faint sources with the solar gravitational lens (SGL) while treating the Sun as an extended gravitating body. We use our new diffraction integral that describes how a spherical electromagnetic wave is…

Instrumentation and Methods for Astrophysics · Physics 2023-06-01 Slava G. Turyshev , Viktor T. Toth

The gravitational field of the sun will focus light from a distant source to a focal point at a minimal distance of 550 Astronomical Units from the sun. A proposed mission to this gravitational focus could use the sun as a very large lens,…

Earth and Planetary Astrophysics · Physics 2016-12-15 Geoffrey A. Landis

We continue to study the optical properties of the solar gravitational lens (SGL). The aim is prospective applications of the SGL for imaging purposes. We investigate the solution of Maxwell's equations for the electromagnetic (EM) field,…

General Relativity and Quantum Cosmology · Physics 2021-07-08 Slava G. Turyshev , Viktor T. Toth

We study the image formation process with the solar gravitational lens (SGL) in the case of an extended, resolved source. An imaging telescope, modeled as a convex lens, is positioned within the image cylinder formed by the light received…

Instrumentation and Methods for Astrophysics · Physics 2020-07-31 Slava G. Turyshev , Viktor T. Toth

We discuss the propagation of electromagnetic (EM) waves in the post-Newtonian approximation of the general theory of relativity. We consider diffraction of EM waves in the static gravitational field of a massive monopole. We develop a…

General Relativity and Quantum Cosmology · Physics 2017-04-25 Slava G. Turyshev

We present an analysis of high-resolution imaging of an exoplanet by a meter-class telescope positioned at a real image of the exoplanet created by the solar gravity lens. We assume an exoplanet viewed in full phase and a simple…

Instrumentation and Methods for Astrophysics · Physics 2020-05-06 Phil A. Willems

We continue our investigation of the optical properties of the solar gravitational lens (SGL). We treat the Sun as an extended axisymmetric body and model its gravitational field using zonal harmonics. We consider a point source that is…

General Relativity and Quantum Cosmology · Physics 2021-08-06 Slava G. Turyshev , Viktor T. Toth
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