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Diffractive X-ray Telescopes [PDF]
X-Ray Optics and Instrumentation, 2010 Diffractive X-ray telescopes using zone plates, phase Fresnel lenses, or related optical elements have the potential to provide astronomers with true imaging capability with resolution several orders of magnitude better than available in any other ...
Skinner, Gerald K.
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Characterization of a lobster-eye type X-ray telescope [PDF]
EPJ Web of Conferences, 2022 Lobster-eye type X-ray telescopes use reflecting plano mirrors under grazing incidence and can observe a large field of view. As part of a Bavarian-Czech cooperation, two telescopes were build, equipped with mirrors coated with gold and iridium.
Döhring Thorsten +5 more
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Simulation of a Simple Wolter Telescope of Type I by Geant4 for Some Widely Used Materials [PDF]
Iranian Journal of Astronomy and Astrophysics, 2020 At the present work, the reflection of X-rays from surfaces composed of silicon, gold, iridium, and nickel is simulated in the range of E ≤ 5 keV energy for the two cases, which includes raw mirror surfaces and a typical Wolter-I optics-based X-ray ...
Mehdi Abbasian Motlagh +1 more
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Design and testing of a Kirkpatrick-Baez optics variation [PDF]
EPJ Web of Conferences, 2022 Beside Wolter I X-ray optics, which are used at most in currently operating X-ray space telescopes, there exist also other optical designs and their usability for space observations is still the matter of studies.
Stieglitz Veronika +4 more
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Target Detection Framework for Lobster Eye X-Ray Telescopes with Machine-learning Algorithms
The Astrophysical Journal Supplement Series, 2023 Lobster eye telescopes are ideal monitors to detect X-ray transients because they could observe celestial objects over a wide field of view in the X-ray band.
Peng Jia, Wenbo Liu, Yuan Liu, Haiwu Pan
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The Cycles of Alpha Centauri: Double Dipping of AB
The Astronomical Journal, 2023 In mid-2023, the Sunlike dwarfs of nearby α Centauri (HD 128620 (“A”): G2 V; HD 128621 (“B”): K1 V; hereafter “AB”) coincidentally both entered coronal ( T ≈ 1–3 MK) low states in their long-term X-ray cycles, as captured by the Chandra Observatory and ...
Thomas Ayres
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Equalizing the Pixel Response of the Imaging Photoelectric Polarimeter Onboard the IXPE Mission
The Astronomical Journal, 2023 The Gas Pixel Detector is a gas detector, sensitive to the polarization of X-rays, currently flying onboard the Imaging X-ray Polarimetry Explorer (IXPE)—the first observatory dedicated to X-ray polarimetry.
John Rankin +20 more
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The Challenge to Large Optical Telescopes from X-ray Astronomy [PDF]
, 2002 In the ROSAT era of the mid-1990's, the problems facing deep X-ray surveys could be largely solved with 10 m class telescopes. In the first decade of this new millennium, with X-ray telescopes such as the Chandra X-ray Observatory and XMM-Newton in ...
Hornschemeier, Ann E.
core +3 more sources
An X-ray Polarimeter for HXMT Mission [PDF]
, 2007 The development of micropixel gas detectors, capable to image tracks produced in a gas by photoelectrons, makes possible to perform polarimetry of X-ray celestial sources in the focus of grazing incidence X-ray telescopes.
Baldini, Luca +20 more
core +2 more sources
Searching for Axion-Like Particles with X-ray Polarimeters
Galaxies, 2018 X-ray telescopes are an exceptional tool for searching for new fundamental physics. In particular, X-ray observations have already placed world-leading bounds on the interaction between photons and axion-like particles (ALPs).
Francesca Day, Sven Krippendorf
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