Results 71 to 80 of about 6,376,337 (186)

An X-ray Polarimeter for HXMT mission

, 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.
Matt Giorgio, Sgro Carmelo, Sgro, Carmelo, Cotroneo Vincenzo, Basso, Stefano, Basso Stefano, Soffitta, Paolo, Frontera Filippo, Stefano Basso, Bellazzini Ronaldo, Frutti, Massimo, Cotroneo, Vincenzo, Muleri Fabio, Brez, Alessandro, Rubini, Alda, Gloria Spandre, Giovanni Pareschi, Paresehi Giovanni, Luca Baldini, Carmelo Sgro, Bellazzini, Ronaldo, Perola, Giuseppe Cesare, Giorgio Matt, Massimo Minuti, BE Siegmund OHW, Perola Giuseppe Cesare, Spandre Gloria, Fabio Muleri, Bregeon Johan, Muleri, Fabio, Giuseppe Cesare Perola, Brez Alessandro, Soffitta Paolo, Matt, Giorgio, BALDINI, LUCA, Vincenzo Cotroneo, Massimo Frutti, Frutti Massimo, Citterio, Oberto, Ronaldo Bellazzini, Alessandro Brez, Citterio Oberto, Minuti Massimo, Alda Rubini, Tagliaferri Gianpiero, Tagliaferri, Gianpiero, Bregeon, Johan, FRONTERA, Filippo, Spandre, Gloria, Paolo Soffitta, Minuti, Massimo, Gianpiero Tagliaferri, Oberto Citterio, Johan Bregeon, Enrico Costa, Costa, Enrico, Costa Enrico, Pareschi, Giovanni, Rubini Alda, Filippo Frontera   +59 more
core   +1 more source

IXPE View of the Crab Pulsar Following the 2025 July 17 and August 6 Glitches

The Astrophysical Journal
The Crab pulsar experienced two relatively small glitches separated by only 20 days in 2025 September and October. Imaging X-ray Polarimetry Explorer (IXPE) observed the source twice, with delay times since the glitch epoch ranging between 35 and 75 days,
Paolo Soffitta, Niccolò Bucciantini, Josephine Wong, Denis González-Caniulef, Matteo Bachetti, Riccardo Ferrazzoli, Fei Xie, Enrico Costa, Maura Pilia, Nicolò Cibrario, Jack T. Dinsmore, Niccolò Di Lalla, Philip Kaaret, Kuan Liu, Tsunefumi Mizuno, Michela Negro, C.-Y. Ng, Nicola Omodei, Simone Pagliarella, Stefano Silvestri, Yi-Jung Yang, Martin C. Weisskopf   +21 more
doaj   +1 more source

Star-XP: A simulation framework for Polar-2/ low energy X-ray polarization detector

SoftwareX
Star-XP is a simulation framework specifically designed for the Low Energy X-ray Polarization Detector (LPD) onboard the POLAR-2 mission. It is capable of simulating the emission of particles from given sources and the interaction of these particles with
Di-Fan Yi, Qian Liu, Rui-Ting Ma, Bin-Long Wang, Hong-Bang Liu, Fei Xie, Huan-Bo Feng, Zu-Ke Feng, Yang-Heng Zheng   +8 more
doaj   +1 more source

Polarimetry with a soft x-ray spectrometer [PDF]

SPIE Proceedings, 2008
An approach for measuring linear X-ray polarization over a broad-band using conventional spectroscopic optics is described. A set of multilayer-coated flats reflect the dispersed X-rays to the instrument detectors. The intensity variation as a function of energy and position angle is measured to determine three Stokes parameters: I, Q, and U.
openaire   +4 more sources

The Imaging X-ray Polarimetry Explorer 2.5 years later

We have, at last, an observatory dedicated to X-ray polarimetry that has been operational since December 9, 2021. The Imaging X-ray Polarimetry Explorer (IXPE) is a NASA SMEX mission, in partnership with ASI, based on three X-ray telescopes, each ...
Ng, Stephen Chi Yung
core   +1 more source

Electronic Instrumentation in Chemical Analysis: A Case Study (and Other Examples) From a 20th‐Century “Revolution”

Natural Sciences, Volume 6, Issue 3, July 2026.
A review of advances in chemical analysis brought about by electronic instrumentation. The techniques, and their applications, demonstrate how, collectively, they played a crucial role in transforming the laboratory landscape. If not a relatively recent revolution in one branch of science, it was certainly a transformation.
Anthony S. Travis
wiley   +1 more source

X-ray polarimetry – A new Window on Black Hole Systems

, 2016
Three dedicated X-ray polarimetry mission projects are currently under phase A study at NASA and ESA. The need for this new observational window is more apparent than ever.
René W. Goosmann
core   +1 more source

Scattering Polarimetry in the Hard X-ray Range

Instruments
In one and a half years, the Imaging X-ray Polarimetry Explorer has demonstrated the role and the potentiality of Polarimetry in X-ray Astronomy. The next steps include extension to higher energies.
Enrico Costa
doaj   +1 more source

Cyclic Olefin Copolymers as Versatile Materials for Advanced Engineering Applications

Advanced Functional Materials, Volume 36, Issue 47, 11 June 2026.
Cyclic olefin copolymers (COCs) are presented as highly versatile materials combining tunable synthesis, excellent optical properties, and mechanical robustness. Their potential spans microfluidics, bioengineering, and advanced electronics, while emerging self‐healing and sustainable solutions highlight future opportunities.
Giulia Fredi, Norma Mallegni, Andrea Dorigato, Mario Milazzo   +3 more
wiley   +1 more source

Vacuum birefringence and X-ray polarimetry in transient magnetars [PDF]

, 2017
Recent optical polarimetry observations of an X-ray dim isolated neutron star, RX J1856.5-3754, showed a first evidence for QED vacuum birefringence induced by a strong magnetic field.
D González-Caniulef, Song, X, S Zane, Wu, K, X Song, R Taverna, R Turolla, González-Caniulef, D, González-Caniulef, D., Wu, K., K Wu, Zane, S, Zane, S., Song, X., Turolla, R, Turolla, R., Taverna, R., Taverna, R   +17 more
core   +1 more source