Results 1 to 10 of about 5,433 (258)

Characterization of a lobster-eye type X-ray telescope [PDF]

open access: yesEPJ 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
doaj   +1 more source

Simulation of a Simple Wolter Telescope of Type I by Geant4 for Some Widely Used Materials [PDF]

open access: yesIranian 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
doaj   +1 more source

Small Spacecraft Payload Study for X-ray Astrophysics including GRB Science

open access: yesUniverse, 2022
This paper presents microsatellite spacecraft payload study for prompt observation of transient astrophysical objects in X-ray energy range. By combining telescope concepts and miniaturized detectors, the small spacecraft will be able to probe the X-ray ...
Vladimír Dániel   +5 more
doaj   +1 more source

The Swift X-Ray Telescope

open access: yesSpace Science Reviews, 2005
The Swift Gamma-Ray Explorer is designed to make prompt multiwavelength observations of Gamma-Ray Bursts (GRBs) and GRB afterglows. The X-ray Telescope (XRT) enables Swift to determine GRB positions with a few arcseconds accuracy within 100 seconds of the burst onset.
Burrows, D. N.   +23 more
  +8 more sources

Analysis Methods to Localize and Characterize X-Ray Sources with the Microchannel X-Ray Telescope on Board the SVOM Satellite

open access: yesThe Astrophysical Journal, 2023
The Space-based multiband astronomical Variableonboard computing resources. This Object Monitor (SVOM) is a Sino–French space mission targeting high-energy transient astrophysical objects such as gamma-ray bursts.
Shaymaa Hussein   +5 more
doaj   +1 more source

Preliminary Feasibility Study of the Solar Observation Payloads for STSAT-CLASS Satellites [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2004
In this paper, we present preliminary feasibility studies on three types of solar observation payloads for future Korean Science and Technology Satellite (STSAT) programs. The three candidates are (1) an UV imaging telescope, (2) an UV spectrograph, and (
Yong-Jae Moon   +7 more
doaj   +1 more source

Multilayer Mirror Based High-Resolution Solar Soft X-Ray Spectrometer

open access: yesFrontiers in Astronomy and Space Sciences, 2021
Soft X-ray spectroscopy of the Sun is an important tool to understand the coronal dynamics and composition. The solar coronal X-ray spectrum below 1 keV is the least explored with high-resolution spectroscopy.
S. S. Panini   +3 more
doaj   +1 more source

The X-Ray Telescope onboard Suzaku [PDF]

open access: yesPublications of the Astronomical Society of Japan, 2007
Abstract We present the design parameters, production process, and in-flight performance of the X-ray telescope (XRT) onboard Suzaku. The imaging capability is significantly improved over the ASCA XRT, which had half-power diameters of ${3\rlap {.}{}^{\mathrm {\prime }}6}$, to ${1\rlap {.}{}^{\mathrm {\prime }}8}$–${2\rlap {.}{}^{\mathrm
Serlemitsos, P.   +33 more
openaire   +2 more sources

InFOCμS Hard X-ray Imaging Telescope [PDF]

open access: yesExperimental Astronomy, 2006
InFOCμS is a new generation balloon-borne hard X-ray telescope with focusing optics and spectroscopy. We had a successful 22.5-hour flight from Fort Sumner, NM on September 16,17, 2004. In this paper, we present the performance of the hard X-ray telescope, which consists of a depth-graded platinum/carbon multilayer mirror and a CdZnTe detector.
J. Tueller   +14 more
openaire   +1 more source

First Detection of X-Ray Polarization from the Accreting Neutron Star 4U 1820−303

open access: yesThe Astrophysical Journal Letters, 2023
This paper reports the first detection of polarization in the X-rays for atoll-source 4U 1820−303, obtained with the Imaging X-ray Polarimetry Explorer (IXPE) at 99.999% confidence level (CL). Simultaneous polarimetric measurements were also performed in
Alessandro Di Marco   +119 more
doaj   +1 more source

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