Results 81 to 90 of about 5,433 (258)

Simultaneous X-Ray and Optical Polarization Observations of the Blazar Mrk 421

The Astrophysical Journal
We present near-simultaneous X-ray and optical polarization measurements in the high synchrotron peaked (HSP) blazar Mrk 421. The X-ray polarimetric observations were carried out using Imaging X-ray Polarimetry Explorer (IXPE) on 2023 December 6.
Athira M. Bharathan, C. S. Stalin, S. Sahayanathan, Kiran Wani, Amit Kumar Mandal, Rwitika Chatterjee, Santosh Joshi, Jeewan C. Pandey, Blesson Mathew, Vivek K. Agrawal   +9 more
doaj   +1 more source

Multi-wavelength observations of the TeV Blazars Mkn~421, 1ES1959+650, and H1426+428 with the HEGRA Cherenkov telescopes and the RXTE X-ray satellite [PDF]

, 2002
D. Horns, collaboration, the HEGRA
openalex   +1 more source

Spaceborne and spaceborn: Physiological aspects of pregnancy and birth during interplanetary flight

Experimental Physiology, EarlyView.
Abstract Crewed interplanetary return missions that are on the planning horizon will take years, more than enough time for initiation and completion of a pregnancy. Pregnancy is viewed as a sequence of processes – fertilization, blastocyst formation, implantation, gastrulation, placentation, organogenesis, gross morphogenesis, birth and neonatal ...
Arun V. Holden
wiley   +1 more source

2FHL J1745.1–3035: A Newly Discovered, Powerful Pulsar Wind Nebula Candidate

The Astrophysical Journal
We present a multi-epoch, multi-observatory X-ray analysis for 2FHL J1745.1–3035, a newly discovered very high-energy Galactic source detected by the Fermi Large Area Telescope (LAT) located in close proximity to the Galactic Center ( l = 358.°5319; b = −
S. Marchesi, J. Eagle, M. Ajello, D. Castro, A. Domínguez, K. Mori, L. Tibaldo, J. Tomsick, A. Traina, C. Vignali, R. Zanin   +10 more
doaj   +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

A wide field X-ray telescope for astronomical survey purposes: from theory to practice [PDF]

, 2010
P. Conconi, S. Campana, G. Tagliaferri, Giovanni Pareschi, O. Citterio, Vincenzo Cotroneo, Laura Proserpio, M. Civitani   +7 more
openalex   +1 more source

Synthesis of DOPO‐Containing Melamine Flame Retardant and Its Effect on the Flame‐Retardant Properties of Waterborne Polyurethane

Journal of Applied Polymer Science, Volume 143, Issue 3, January 15, 2026.
DOPO‐containing melamine flame retardants improve the flame retardancy, droplet resistance and mechanical properties of WPU. ABSTRACT To improve the flame retardancy of waterborne polyurethane (WPU), two novel DOPO‐containing melamine‐based flame retardants were synthesized by combining Schiff bases (derived from p‐hydroxybenzaldehyde ...
Chao Liu, Jing Yang, Mengdan Chen, Qiuting Lu, Guoyong Zhou   +4 more
wiley   +1 more source

X-Ray Polarization Study of the Neutron Star Low-mass X-Ray Binary GX 349+2

The Astrophysical Journal
We report the first X-ray polarimetric results of the neutron star (NS) low-mass X-ray binary Z-source GX 349+2 using the Imaging X-ray Polarimetry Explorer (IXPE). We discovered that the X-ray source was polarized at a polarization degree of PD = 1.1% ± 
Unnati Kashyap, Thomas J. Maccarone, Mason Ng, Eliot C. Pattie, Swati Ravi, Herman L. Marshall   +5 more
doaj   +1 more source

Gamma‐Ray and X‐Ray Telescope Using Variable‐Metric Diffraction Crystals [PDF]

, 1984
Robert K. Smither
openalex   +1 more source

Search for gamma-ray bursts and gravitational wave electromagnetic counterparts with High Energy X-ray Telescope of Insight-HXMT [PDF]

, 2021
Ce Cai, S. L. Xiong, Cheng-Kui Li, Chao‐Zong Liu, S N Zhang, Xiaobing Li, L. M. Song, Bing Li, Shuo Xiao, Q. B. Yi, Yiming Zhu, Y. G. Zheng, Wei Chen, Q. Luo, Y. Huang, X. Y. Song, Haisheng Zhao, Y. Zhao, Z. H. Zhang, Qingcui Bu, X. L. Cao, Zhi Chang, Lei Chen, Tao Chen, Y B Chen, Ye Chen, Yupeng Chen, Wei Cui, Yong Du, G. H. Gao, H. Gao, Mingyu Ge, Y. D. Gu, Ju Guan, Chengcheng Guo, D. W. Han, J. Huo, S. M. Jia, Weichun Jiang, Jing Jin, Ling-Da Kong, Gongjie Li, Ting Li, Wenfei Li, Xue Li, X F Li, Zhifeng Li, X. H. Liang, J. Y. Liao, B S Liu, Hanwei Liu, H X Liu, Xiaoyu Liu, F. J. Lu, Xiao-Meng Lu, T. Luo, Ruican Ma, Xiang Ma, Bin Meng, Y. Nang, J. Y. Nie, G. Ou, Jin‐Lu Qu, Xiaoqin Ren, Na Sai, Liang Sun, Y. Tan, Lian Tao, Y. L. Tuo, Chen‐Zhu Wang, Ling‐Jun Wang, Peng-Ju Wang, W S Wang, Y S Wang, X. Y. Wen, Bobing Wu, Bai-Yang Wu, Mei‐Hwan Wu, G. Xiao, Y. P. Xu, Yi-Jung Yang, Shengqi Yang, H. J. Yang, Yushu Yang, Xuejuan Yang, Qian-Qing Yin, Yuan You, Fan Zhang, Hongming Zhang, J. Zhang, Peng Zhang, S Zhang, W C Zhang, W Zhang, Y F Zhang, Y H Zhang, Xiao-Yun Zhao, S. J. Zheng, D. K. Zhou   +98 more
openalex   +1 more source