Results 141 to 150 of about 3,039 (228)

Auroral Effect on Mid‐Latitude Ionospheric Disturbances Over Europe During the Extreme Geomagnetic Storm of 10 May 2024

Space Weather, Volume 24, Issue 8, August 2026.
Abstract Large ionospheric disturbances were observed over Europe during the extreme geomagnetic storm on 10 May 2024. This study analyzes GNSS‐derived total electron content (TEC) and all‐sky imager data to investigate these disturbances. Pronounced TEC enhancements, irregularities, and strong gradients were confined to the auroral region above the ...
Grzegorz Nykiel, Joanna Kanska, Hiroatsu Sato, Shin‐ichiro Oyama, Kazuo Shiokawa, David R. Themens   +5 more
wiley   +1 more source

Detection of disk-jet coprecession in a tidal disruption event. [PDF]

Sci Adv
Wang Y, Lin Z, Wu L, Lei WH, Wei S, Zhang SN, Ji L, Del Palacio S, Baldi RD, Huang Y, Liu JF, Zhang B, Yang A, Chen RR, Zhang Y, Wang AL, Yang L, Charalampopoulos P, Williams-Baldwin DRA, Yao ZH, Xie FG, Bu D, Feng H, Cao X, Wu H, Li W, Qiao E, Leloudas G, Anderson JP, Shu X, Pasham DR, Zou H, Nicholl M, Wevers T, Müller-Bravo TE, Wang J, Wei JY, Qiu YL, Guo WJ, Gutiérrez CP, Gromadzki M, Inserra C, Makrygianni L, Onori F, Petrushevska T, Altamirano D, Galbany L, Peréz-Torres M, Chen TW.   +48 more
europepmc   +1 more source

Model‐Based Analysis of Ionospheric TEC Disturbances Over China and Adjacent Regions During the May 2024 Super Geomagnetic Storm

Space Weather, Volume 24, Issue 8, August 2026.
Abstract This study uses observation data from multi‐constellation (GPS/GLONASS/Galileo/BeiDou) ground‐based Global Navigation Satellite Systems (GNSS) networks and a non‐integrated spherical harmonic function modeling methodology to develop an ionospheric Total Electron Content (TEC) model with high spatiotemporal resolution (1° × 1° in longitude and ...
Heng Xu, Wengeng Huang, Jiayue Yang, Hua Shen, Lei Zhang, Xin Wang   +5 more
wiley   +1 more source

Accurate determination of chemical abundances near a supermassive black hole. [PDF]

Nat Astron
XRISM Collaboration.
europepmc   +1 more source

Recent Advances in Conjugation Chemistry Expanding the Applications of the DNA Tetrahedron

Chemical Biology &Drug Design, Volume 108, Issue 2, August 2026.
The tetrahedral DNA nanostructure (TDN) is a promising drug delivery and biosensing platform that can be chemically modified with absolute payload precision. This review highlights explicit conjugation chemistries driving functionalization of the TDN for a broad range of applications, advancing its role in support of next‐generation biomimetic ...
Tyler J. Rutherford, Christopher J. Wilds   +1 more
wiley   +1 more source

Neutron and photon science facilities at a crossroads: embracing innovation in a changing world. [PDF]

IUCrJ
Argyriou DN.
europepmc   +1 more source

Electronic and Structural Effects in Porphyrin Metal–Organic Framework Sensitizers for Solid‐State Dye‐Sensitized Solar Cells

ChemPhysChem, Volume 27, Issue 14, 29 July 2026.
Porphyrin metal–organic frameworks (PMOFs) offer structurally ordered and compositionally tunable platforms for sensitized photovoltaics. Titanium‐ and indium‐based PMOFs, together with a tin‐doped indium analog, were investigated as photosensitizers in solid‐state dye‐sensitized solar cells (ssDSSCs). Electrochemical and optical measurements confirmed
Tommy Taing, Jesus Corona, Sailaja Muduganti, Xiyuan Yao, Matthew J. Tang, Doroteo Manriquez, Crystal Xiong, Oscar O. Bernal, Lun An, Long Qi, Dianlu Jiang, Yangyang Liu   +11 more
wiley   +1 more source

The abundances of carbon and nitrogen in the atmospheres of classical Be stars. [PDF]

Astrophys Space Sci
Peters GJ, Gayley KG, Rast RG, Vink JS, Drake JJ.   +4 more
europepmc   +1 more source

Pre‐Existing Plasmaspheric Density Structure

Geophysical Research Letters, Volume 53, Issue 14, 28 July 2026.
Abstract We perform a basic model experiment: we run two nearly identical plasmapause simulations, differing only by their initial conditions. The first run contains initial fine‐scale and mesoscale structure, and the second run is initialized with a featureless, circular plasmapause.
J. Goldstein, M. F. Thomsen
wiley   +1 more source

A hot white dwarf merger remnant revealed by an ultraviolet detection of carbon. [PDF]

Nat Astron
Sahu S, Bédard A, Gänsicke BT, Tremblay PE, Koester D, Farihi J, Hermes JJ, Hollands MA, Cunningham T, Redfield S.   +9 more
europepmc   +1 more source