Results 221 to 230 of about 2,148,167 (385)

The challenge to large optical telescopes from x-ray astronomy [PDF]

, 2003
A. E. Hornschemeier
openalex   +1 more source

Bursty Precipitation of Relativistic Electrons Unveiled by CIRBE/REPTile‐2 Measurements and Their Physical Implications

AGU Advances, Volume 7, Issue 1, February 2026.
Abstract Energetic electron precipitation plays a pivotal role in shaping Earth's radiation belt dynamics and drives significant physical and chemical changes in the upper atmosphere. However, the detailed mechanisms governing the loss of relativistic electrons have remained unclear, largely due to the limited energy coverage and coarse resolution of ...
Zheng Xiang, Xinlin Li, Daniel N. Baker, Qianli Ma, Yang Mei, Declan O’Brien, Hong Zhao, David Brennan, Theodore Sarris, Yoshizumi Miyoshi, Yoshiya Kasahara, Takefumi Mitani, Takeshi Takashima, Michael A. Temerin   +13 more
wiley   +1 more source

Non-local X-ray intermolecular radiative decay probes solvation shell of ions in water. [PDF]

Nat Commun
Söderström J, Cornetta LM, Ekholm V, Carravetta V, Brito AN, Marinho R, Agåker M, Tokushima T, Såthe C, Ghosh A, Bloß D, Hans A, Trinter F, Ismail I, Vasconcelos D, Pinheiro J, Chang YP, Harder M, Yin Z, Nordgren J, Öhrwall G, Ågren H, Rubensson JE, Björneholm O.   +23 more
europepmc   +1 more source

Isothermal Thermoluminescence Dating of Coral Reef Calcite: Implications for Sea‐Level Change

Geophysical Research Letters, Volume 53, Issue 2, 28 January 2026.
Abstract Reconstructing past sea‐level changes is critical in Quaternary science. On remote oceanic reefs, aragonite‐to‐calcite alteration occurs during subaerial exposure, directly recording the timing of sea‐level fall. U–Th dating of coral calcite is challenging due to open‐system issues.
Junjie Wei, Hui Zhao, Junjie Zhang, Haiwei Zhang, Leibin Wang, Yupei Li, Dongxue Li, Shuai Zhang, Kefu Yu, Jianjun Qu   +9 more
wiley   +1 more source

Stratified wind from a super-Eddington X-ray binary is slower than expected. [PDF]

Nature
XRISM collaboration.
europepmc   +1 more source

Quantifying stent‐induced dose perturbations in intravascular brachytherapy using 3D‐ printed phantoms and film dosimetry

Journal of Applied Clinical Medical Physics, Volume 27, Issue 1, January 2026.
Abstract Background Coronary artery disease (CAD), the leading cause of death worldwide, is the narrowing of coronary arteries due to atherosclerotic plaque buildup. A common treatment for CAD is percutaneous coronary intervention (PCI), often involving stent placement. However, a common complication or in‐stent restenosis (ISR) can occur in 10%–20% of
Jessica S. Jung, Lyu Huang, Nicholas Coupera, Yijian Cao, Jenghwa Chang   +4 more
wiley   +1 more source

A complex structure of escaping helium spanning more than half the orbit of the ultra-hot Jupiter WASP-121 b. [PDF]

Nat Commun
Allart R, Coulombe LP, Carteret Y, Splinter J, Dang L, Bourrier V, Lafrenière D, Albert L, Artigau É, Benneke B, Cowan NB, Doyon R, Krishnamurthy V, Jayawardhana R, Johnstone D, Langeveld AB, Meyer MR, Pelletier S, Piaulet-Ghorayeb C, Radica M, Taylor J, Turner JD.   +21 more
europepmc   +1 more source

The Low Energy X-ray telescope (LE) onboard the Insight-HXMT astronomy satellite [PDF]

, 2019
Yong Chen, Wei Cui, Wěi Li, Juan Wang, Y. P. Xu, F. J. Lu, Yusa Wang, Tianxiang Chen, Dawei Han, Wei Hu, Yi Zhang, Jia Huo, Yanji Yang, Mao-Shun Li, Bo Lü, Ziliang Zhang, Ti-Pei Li, Shuang‐Nan Zhang, S. L. Xiong, Shu Zhang, RongFeng Xue, Xiaofan Zhao, Yue Zhu, Xiaoyong Xu, Hongwei Liu, YiRong Yang, Fan Zhang   +26 more
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Dual Optical Hyperbolicity of PdCoO2 and PdCrO2 Delafossite Single Crystals

Advanced Functional Materials, Volume 36, Issue 1, 2 January 2026.
In this work, the hyperbolic response of PdCoO₂ and PdCrO₂ delafossites is investigated for the first time. They exhibit dual hyperbolic regimes, one localized around a phonon absorption in the mid‐infrared spectral region, and the other extending into the visible range.
Salvatore Macis, Annalisa D'Arco, Eugenio Del Re, Lorenzo Mosesso, Maria Chiara Paolozzi, Vincenzo Stagno, Alexander McLeod, Yu Tao, Pahuni Jain, Yi Zhang, Fred Tutt, Marco Centini, Maria Cristina Larciprete, Chris Leighton, Stefano Lupi   +14 more
wiley   +1 more source

Tracking oxygen vacancy migration in memristor devices using operando hard X-ray photoelectron spectroscopy. [PDF]

Sci Rep
Capocasa F, Rumaiz AK, Weiland C, Goul R, Marshall A, Harding I, Ozbay A, Kuczewski AJ, Karmakar S, Boukhicha M, Miryala S, Carini GA, Siddons DP, Woicik JC, Wu JZ.   +14 more
europepmc   +1 more source