Results 101 to 110 of about 2,093,256 (347)

EP241021a: A Months-duration X-Ray Transient with Luminous Optical and Radio Emission

open access: yesThe Astrophysical Journal Letters
We present the discovery of a peculiar X-ray transient, EP241021a, by the Einstein Probe (EP) mission and the results from multiwavelength follow-up observations.
Xinwen Shu   +94 more
doaj   +1 more source

Demography of obscured and unobscured AGN: prospects for a Wide Field X-ray Telescope

open access: yes, 2010
We discuss some of the main open issues in the evolution of Active Galactic Nuclei which can be solved by the sensitive, wide area surveys to be performed by the proposed Wide Field X-ray Telescope mission.Comment: Proceedings of "The Wide Field X-ray ...
A. Comastri   +10 more
core  

A double‐crystal bent Laue parallel‐beam compressor

open access: yesJournal of Synchrotron Radiation, EarlyView.
An application of bent Laue crystals as X‐ray optics to increase beam intensity in bending‐magnet beamlines at synchrotron facilities is presented.We demonstrate the ability to manipulate a synchrotron X‐ray beam's size, maintaining a nearly parallel beam, by `compressing' it horizontally using a pair of cylindrically bent Laue crystals.
Glendon Rhoades, L. Dean Chapman
wiley   +1 more source

The Telescope Calibration of the Imaging X-Ray Polarimetry Explorer

open access: yesThe Astronomical Journal
Fifty years after the very first sounding rocket measurement of cosmic X-ray polarization, the Imaging X-ray Polarimetry Explorer (IXPE) mission has effectively opened a new window into the X-ray sky.
Brian D. Ramsey   +29 more
doaj   +1 more source

Vignetting characteristics of the S-056 X-ray telescope [PDF]

open access: yes
A ray trace analysis of the vignetting characteristics of the S-056 X ray telescope is presented. The relative energy is calculated in the spot formed in the focal plane of the S-056 X ray telescope by an off axis point source at infinity for off axis ...
Cardone, J. M., Foreman, J. W., Jr.
core   +1 more source

Polarization vision and the physiological basis for trichromatic vision in Philaenus spumarius: Understanding host‐seeking behaviour in insect vectors for Xylella fastidiosa control

open access: yesAnnals of Applied Biology, EarlyView.
We investigated the role of vision in host‐seeking behaviour by Philaenus spumarius, the main European vector of Xylella fastidiosa, through an integrated anatomical, optical, physiological, and behavioural study. Our data highlight that the spittlebug uses visual cues, including polarized light, which may aid in detecting the polarized reflections ...
Domen Lazar   +4 more
wiley   +1 more source

Study of Silicon Photomultipliers for the GRIPS Calorimeter Module

open access: yesActa Polytechnica, 2013
GRIPS is a proposed gamma-ray (200 keV to 80 MeV) astronomy mission, which incorporates a pair-creation and Compton scattering telescope, along with X-ray and infrared telescopes.
Alexei Ulyanov   +3 more
doaj  

GRB 170519A: Thermal Radiation in an X-Ray Flare and Decaying Magnetic Fields for the Early-time Afterglow

open access: yesThe Astrophysical Journal
GRB 170519A was discovered by the Swift Burst Alert Telescope (BAT) and then observed by the Swift X-Ray Telescope, Swift UltraViolet and Optical Telescope, and ground-based telescopes.
Zi-Min Zhou   +7 more
doaj   +1 more source

Emerging Techniques in Minimally Invasive Surgery in Hematologic Malignancies

open access: yesEuropean Journal of Haematology, EarlyView.
ABSTRACT Hematologic malignancies represent the most common cancers in children. While the mainstays of treatment are chemotherapy and potentially hematopoietic stem cell transplant, minimally invasive surgery (MIS) has a role in the diagnosis and management of complications related both to disease and therapy as well as common pediatric surgical ...
Alejandro Chara   +3 more
wiley   +1 more source

Mechanochemical Synthesis of X‐Vinylbenziodoxol(on)es and One‐Pot Conversion to Complex Alkenes**

open access: yesAngewandte Chemie, Volume 138, Issue 4, 22 January 2026.
The synthesis of a wide range of complex 1,2‐di(heteroatom)‐substituted (Z)‐alkenes is achieved through a mechanochemical one‐pot reaction of ethynylbenziodoxol(on)es (EBX/EBO) with a variety of heteroatom nucleophiles. The mechanochemical activation enables synthesis of a range of novel vinylbenziodoxol(on)es (VBX/VBO) whose synthesis is inefficient ...
Sayad Doobary   +3 more
wiley   +2 more sources

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