Results 151 to 160 of about 29,884 (299)

An observational diagnostic for ultraluminous X-ray sources [PDF]

, 2004
We consider observational tests for the nature of ultraluminous X-ray (ULX) sources. These tests must distinguish between thermal-timescale mass transfer onto stellar-mass black holes, leading to anisotropic X-ray emission, and accretion onto ...
A. R. King (7601711), N. Ivanova (7748108), M. Henninger (7748105), V. Kalogera (7612640)   +3 more
core   +2 more sources

Resolving the 2024 Outburst of Magnetar 1E 1841-045 from Its Host Supernova Remnant with EP-FXT

The Astrophysical Journal
The magnetar 1E 1841–045 exhibited a new active episode starting on 2024 August 20, marked by X-ray bursts and enhanced persistent emission. Using data from the Einstein Probe (EP), we report on the timing and spectral results following the onset of this
Yu-Cong Fu, Lin Lin, Yu-Jia Zheng, Ming-Yu Ge, Han-Long Peng, Dong-Ming Li, Francesco Coti Zelati, Ersin Göǧüş, Nanda Rea, Bing Zhang, Wei-Wei Zhu, Ke-Jia Lee, Teruaki Enoto, Chryssa Kouveliotou   +13 more
doaj   +1 more source

Swelling‐Programmed Topographical Guidance for Dynamic Spheroid Self‐Assembly via a Mechanochemical Hydrogel Niche

Advanced Functional Materials, EarlyView.
A swelling‐programmed micropatterned hydrogel guides adherent cells through a controlled transition from cell–matrix anchoring to cadherin‐mediated cell–cell compaction, enabling rapid assembly of high‐viability spheroids with defined size and morphology.
Han Gyeol Nam, Seon Yeong Chae, Young Woo Kwon, Hye Jin Heo, Hye Rin Lee, Ji Hyeok Lee, Dong‐Wook Han, Yun Hak Kim, Suck Won Hong   +8 more
wiley   +1 more source

Multi-instrument Search for Gamma-Ray Counterpart of X-Ray Transients Detected by EP/WXT

The Astrophysical Journal Letters
As a soft X-ray imager with an unprecedentedly large field of view, Einstein Probe (EP)/Wide-field X-ray Telescope (WXT) has detected many (fast) X-ray transients, whose nature is very intriguing.
Yan-Qiu Zhang, Wang-Chen Xue, Jin-Peng Zhang, Ce Cai, Shao-Lin Xiong, Cheng-Kui Li, Yuan Liu, Chen-Wei Wang, Hao-Xuan Guo, Shuo Xiao, Wen-Jun Tan, Chao Zheng, Jia-Cong Liu, Sheng-Lun Xie, Peng Zhang, Wen-Long Zhang, Yue Wang, Zheng-Hang Yu, Yang-Zhao Ren, Ping Wang, Yue Huang, Xiao-Bo Li, Xiao-Yun Zhao, Shi-Jie Zheng, Zhen Zhang, Shu-Xu Yi, Li-Ming Song, Shuang-Nan Zhang   +27 more
doaj   +1 more source

Chemical State Detection and Charge Transfer in Complex Oxide Heterostructures via In Situ Auger Electron Spectroscopy

Advanced Functional Materials, EarlyView.
In situ Auger Electron Spectroscopy resolves oxidation states with high fidelity during the pulsed laser deposition of multivalent perovskite manganate and vanadate heterostructures. The chemical‐state signature is carried by the valence‐electron population of the transition‐metal cation, read out through the relative intensities of Auger fine ...
Harish Kumarasubramanian, Jayakanth Ravichandran   +1 more
wiley   +1 more source

Einstein Probe Discovery of EP J171159.4–333253: An Eclipsing Neutron Star Low-mass X-Ray Binary with Clocked Bursts

The Astrophysical Journal
EP J171159.4−333253 is a new neutron star low-mass X-ray binary discovered in outburst by the Einstein Probe (EP) on 2025 June 23, exhibiting clocked type I X-ray bursts, eclipses, and dips.
Y. L. Wang, F. Coti Zelati, E. Parent, A. Marino, N. Rea, V. S. Dhillon, J. Blanco-Pozo, I. Ribas, S. P. Littlefair, Z. H. Yang, G. B. Zhang, S. Guillot, K. R. Ni, J. H. Wu, A. Patruno, Y. Cavecchi, G. Illiano, A. Papitto, F. Ambrosino, B. F. Liu, H. Q. Cheng, H. Feng, J. W. Hu, C. C. Jin, H. Sun, L. Tao, Y. J. Xu, H. N. Yang, W. Yuan, Q. C. Zhao   +29 more
doaj   +1 more source

Intrinsic Photoactive Star ZnPc–Poly(glutamate) Nanoplatforms for Multimodal Glioblastoma Therapy and Brain‐Targeted Delivery

Advanced Functional Materials, EarlyView.
An intrinsic photoactive star‐shaped zinc phtalocyanine‐poly(L‐glutamic acid) (ZnPc‐PGA) nanoplatform for multimodal glioblastoma (GBM) therapy and brain‐targeted elivery. A ZnPc‐PGA‐based multifunctional theranostic nanocarrier platform enables image‐guided, multimodal GBM therapy. ZnPc‐PGA nanocarriers support the integration of fluorescence imaging,
Amina Benaicha‐Fernández, Teodora Ranđelović, Ana Armiñán, Víctor Sebastián, Manuel Fuentes, Cristián Huck‐Iriart, Esther Masiá, Paula Carrascosa‐Marco, Pablo Juanes‐Velasco, Snežana Đorđević, Clara Bayona, Ignacio Ochoa, Maria Medel, Inmaculada Conejos‐Sánchez, María J. Vicent   +14 more
wiley   +1 more source

On the Ultralong Gamma-Ray Transient GRB 250702B/EP 250702a

The Astrophysical Journal Letters
GRB 250702B/EP 250702a is an interesting long-duration gamma-ray transient whose nature is in debate. To obtain a full picture in the gamma-ray band, we implement a comprehensive targeted search of burst emission in a wide window of 30 days jointly with ...
Jin-Peng Zhang, Chen-Wei Wang, Zheng-Hang Yu, Shao-Lin Xiong, Shu-Xu Yi, Jia-Cong Liu, Wang-Chen Xue, Wen-Jun Tan, Zi-Rui Zhang, Rahim Moradi, Hao-Xuan Guo, Chao Zheng, Yan-Qiu Zhang, Yue Wang, Sheng-Lun Xie, Peng Zhang, Yang-Zhao Ren, Cheng-Kui Li, Xiao-Bo Li, Ce Cai, Shuo Xiao, Li-Ming Song, Shuang-Nan Zhang   +22 more
doaj   +1 more source

Transient observations of X-ray sources [PDF]

Nature, 1975
openaire   +1 more source

Achieving High ON State Current through Ferroelectric Polarization‐Dependent Interfacial Resistance Switching in Undoped Orthorhombic HfO2 Films

Advanced Functional Materials, EarlyView.
Ferroelectric tunnel junction devices based on epitaxial undoped ferroelectric HfO2 films demonstrate stable switching endurance of over 106 switching cycles, low write voltages of ±3 V, 16 measured resistance states, and neuromorphic capability.
Markus Hellenbrand, Nuno Estrócio, Ji S. Kim, Babak Bakhit, Marian C. Istrate, Corneliu Ghica, Tiago Rebelo, Nives Strkalj, Abin Varghese, Bernardo Almeida, Luís S. Marques, Bipin Rajendran, Judith L. MacManus‐Driscoll, José P. B. Silva   +13 more
wiley   +1 more source