Results 31 to 40 of about 762 (173)

Galactic X-ray Polarimetry and High-Resolution X-ray Spectroscopy [PDF]

Symposium - International Astronomical Union, 1973
Stellar X-ray spectroscopy and polarimetry are discussed in terms of the source parameters that can be determined through such studies and in terms of the constraints that these studies will place on theoretical models. The spectroscopic and polarimetric results that have been obtained to date are reviewed.
openaire   +1 more source

The Imaging X-ray Polarimetry Explorer

, 2021
The Imaging X-ray Polarimetry Explorer is the next NASA Small Explorer developed in collaboration with the Italian Space Agency (Agenzia Spaziale Italiana, ASI). The mission, selected in 2017, is dedicated to imaging polarimetry in the 2-8 keV energy range and the payload comprises of three identical telescopes, each composed of a grazing-incidence ...
Muleri, Fabio, IXPE Team
openaire   +1 more source

The Combination of Chiral Assembly and Chiral Template Effects Boosts Circularly Polarized Luminescence of Perovskite Nanocrystals

Angewandte Chemie, Volume 138, Issue 1, 2 January 2026.
We show that the hierarchical order of perovskite nanocrystal assemblies formed within a nanostructured, chal liquid‐crystalline template exhibits extremely high circularly polarized luminescence (CPL). This is due to the helical arrangement of PNCs in the template voids and capitalizes on the inherent electrooptic properties of the template ...
Mateusz Pawlak, Julia Abramowicz, Nadesh Fiuza Maneiro, Gail A. Vinnacombe‐Willson, Sunghwan Jo, Elie Benchimol, Piotr Roszkowski, Zitao Chen, Da Wang, Guido H. Clever, Luis M. Liz‐Marzán, Agustín Mihi, Lakshminarayana Polavarapu, Wiktor Lewandowski   +13 more
wiley   +2 more sources

X-Ray Polarimetry of the Accreting Pulsar 1A 0535+262 in the Supercritical State with PolarLight

The Astrophysical Journal, 2023
The X-ray pulsar 1A 0535+262 exhibited a giant outburst in 2020, offering us a unique opportunity for X-ray polarimetry of an accreting pulsar in the supercritical state.
Xiangyun Long, Hua Feng, Hong Li, Ling-Da Kong, Jeremy Heyl, Long Ji, Lian Tao, Fabio Muleri, Qiong Wu, Jiahuan Zhu, Jiahui Huang, Massimo Minuti, Weichun Jiang, Saverio Citraro, Hikmat Nasimi, Jiandong Yu, Ge Jin, Ming Zeng, Peng An, Luca Baldini, Ronaldo Bellazzini, Alessandro Brez, Luca Latronico, Carmelo Sgrò, Gloria Spandre, Michele Pinchera, Paolo Soffitta, Enrico Costa   +27 more
doaj   +1 more source

X-ray polarimetry small satellite TSUBAME

AIP Conference Proceedings, 2008
“TSUBAME” is a university‐built small satellite mission to measure polarization of hard X‐ray photons (30–100 keV) from Gamma‐ray bursts (GRBs) using azimuthal angle anisotropy of Compton‐scattered photons. Polarimetry in the hard X‐ray and soft γ‐ray band plays a crucial role in the understanding of high energy emission mechanisms and the distribution
Makoto Arimoto, Yoshihiro Tsubuku, Takahiro Toizumi, Mitsuyoshi Kobayashi, Yoichi Yatsu, Takashi Shimokawabe, Jun Kataoka, Nobuyuki Kawai, Kuniyuki Omagari, Ken Fujiwara, Yasumi Konda, Yohei Tanaka, Masaki Maeno, Tomio Yamanaka, Hiroki Ashida, Junichi Nishida, Kouta Fujihashi, Takuro Ikeda, Shinichi Inagawa, Yoshiyuki Miura, Saburo Matunaga, M. Galassi, David Palmer, Ed Fenimore   +23 more
openaire   +3 more sources

Instrumentation and Future Missions in the Upcoming Era of X-ray Polarimetry

Galaxies, 2018
The maturity of current detectors based on technologies that range from solid state to gases renewed the interest for X-ray polarimetry, raising the enthusiasm of a wide scientific community to improve the performance of polarimeters as well as to ...
Sergio Fabiani
doaj   +1 more source

Investigating the Properties of the Relativistic Jet and Hot Corona in AGN with X-ray Polarimetry

Galaxies
X-ray polarimetry has been suggested as a prominent tool for investigating the geometrical and physical properties of the emissions from active galactic nuclei (AGN).
Dawoon E. Kim, Laura Di Gesu, Frédéric Marin, Alan P. Marscher, Giorgio Matt, Paolo Soffitta, Francesco Tombesi, Enrico Costa, Immacolata Donnarumma   +8 more
doaj   +1 more source

Handling the Background in IXPE Polarimetric Data

The Astronomical Journal, 2023
Imaging X-ray Polarimetry Explorer (IXPE) is a Small Explorer mission by NASA and Agenzia Spaziale Italiana, launched on 2021 December 9, dedicated to investigating X-ray polarimetry allowing angular-, time-, and energy-resolved observations in the 2–8 ...
Alessandro Di Marco, Paolo Soffitta, Enrico Costa, Riccardo Ferrazzoli, Fabio La Monaca, John Rankin, Ajay Ratheesh, Fei Xie, Luca Baldini, Ettore Del Monte, Steven R. Ehlert, Sergio Fabiani, Dawoon E. Kim, Fabio Muleri, Stephen L. O’Dell, Brian D. Ramsey, Alda Rubini, Carmelo Sgrò, Stefano Silvestri, Allyn F. Tennant, Martin C. Weisskopf   +20 more
doaj   +1 more source

Engineering Chiroptical Interactions through Integrating Plasmonic Arrays with Cholesteric Nanocellulose

Advanced Materials, EarlyView.
In this study, we demonstrate how the combination of plant‐based cellulose and gold nanoparticle lines produces robust, tunable chiral light control in composite films. The resulting plasmonic cellulose composite exhibits a strong plasmonic CD at the surface lattice resonance, along with an inversion of chiroptical response upon reversing the ...
Han Tao, Sunghwan Jo, Guang Chu, Xiaoyu Qi, Irene Estévez, Angel Lizana, Wenyang Xu, Shengwei Deng, Agustin Mihi, Eero Kontturi   +9 more
wiley   +1 more source

Reinforcement Learning Enabled Nanophotonic Devices

Laser &Photonics Reviews, EarlyView.
A reinforcement learning algorithm is used to design photonic devices. The method creates metagratings and grating couplers that efficiently control both the direction and polarization of light. Further, a reinforcement learning approach is used to design in‐plane integrated photonic devices. This approach paves the way for advanced photonic components
Zi Wang, Junyeob Song, Minsuk Lee, Wenqi Zhu, Amit Agrawal   +4 more
wiley   +1 more source