[PDF] Supermassive Black Holes with High Accretion Rates in Active Galactic Nuclei. XV. Reverberation Mapping of Mg II Emission Lines
HR Bai, P Du, C Hu, YJ Chen, ZH Yao, YR Li, YX Fu… - arXiv preprint arXiv …, 2025
… where στ is the measurement error of the time lag in linear space. We calculate
the mean error of lag in logarithmic space for SEAMBH sample in this paper as
σcritical = 0.068. For all available samples from the literature (where the sample from …
[HTML] Erratum:“Exploration of the Near-infrared Colors of Cold Y Dwarfs from the Ground and Space”(2025, ApJ, 991, 193)
SK Leggett, MW Phillips, P Tremblin - The Astrophysical Journal, 2025
… Its membership of about 7,000 individuals also includes physicists,
mathematicians, geologists, engineers, and others whose research and educational
interests lie within the broad spectrum of subjects comprising contemporary …
[PDF] Spectroscopic insights into the near-earth didymos-dimorphos binary system following the double asteroid redirection test (DART) mission impact
M Lazzarin, F La Forgia, A Farina, A Migliorini, E Frattin… - Nature Communications, 2025
… Didymos 44 and demonstrated the feasibility of moving an asteroid in space. As
part of an international 45 observing campaign devoted to … The data have been
reduced using the IRAF astronomical package following 118 standard reduction …
[PDF] Mapping the Landscape of Space Sciences in Latin America: a Bibliometric Study of Productivity and Collaboration in Mexico, Brazil, Argentina and Chile
A Nicolás-Pablo, D Maravilla, JL Olivares-Vázquez…
… This paper presents a regional bibliometric study of space sciences in Latin
America. The research is conducted in solar physics, … such as astronomy and
astrophysics, without differentiating between ”near-space” sciences (studied by …
The Statistical Analysis Of The Galactic Open Clusters' Structure
JS Qiu, Z Wan, XZ Li, QF Zhu, L Fan, XH Xu, JH Zhao… - … of the Royal Astronomical …, 2025
We present a systematic investigation of 1,481 Galactic open clusters (OCs) through
the application of the Limepy dynamical model, from which we derive the
fundamental structural parameters of OCs. We conduct the statistical analyses on …
[PDF] Structural and Thermal Stability of B4C/Ru Multilayers with Carbon Barrier Layers
AV Bugaev, SS Sakhonenkov, AU Gaisin… - arXiv preprint arXiv …, 2025
… X-ray optics is one of the key technologies in various scientific, engineering and
industrial applications such as lithography, high-resolution microscopy, X-ray
fluorescence analysis, synchrotrons, free-electron lasers and space astronomy [1–3] …
[HTML] Astrometry with Interplanetary Spacecraft: Determination of the Non-gravitational Accelerations of the Interstellar Object 3I/ATLAS
TM Eubanks, A Hibberd, BG Bills, WP Blase, AM Hein… - Research Notes of the AAS, 2025
Here, we report on the results of adding 6 observations from 2 interplanetary
spacecraft to the orbit determination of 3I/ATLAS, the third known Interstellar Object.
These observations, from vantage points and times impossible with terrestrial …
[PDF] The interstellar signature: A computational framework for open source interstellar tracking
PN Sahu - arXiv preprint arXiv:2512.07910, 2025
… This framework integrates live astronomical data from public repositories and
APIs with … a “Linux for the space race,” designed to democratize access to space
science data and interactive … the interpretability and usability of existing …
The Map and the Medicine Wheel: Architecture as Cosmic Instrument
AI Karimi - Architecture as Environmental Media
… such astronomical … space and a diagrammatic space from which to notate
astronomical phenomena. As an object, the wheel, henge, menhir, or similar
formation constitutes a physical calendar. This bare architectural gesture, drawing a …
The Correlations of Energetic-Electron Fluxes in the Earth's Central Plasma Sheet with Solar-Wind Variables and Geomagnetic Indices
JE Borovsky, A Runov, JM Espinoza - Frontiers in Astronomy and Space Sciences
Correlations are studied between the electron fluxes in the Earth's central plasma
sheet and various solar-wind and magnetospheric parameters. Higher-energy (above
about 2 keV) fluxes are the focus of the analysis. Flux measurements are taken …
Gypsum as a Repository of Extinct and Extant Biosignatures at Salar de Pajonales, Northern Chile
C Tebes-Cayo, CS Demergasso Semenzato… - Frontiers in Astronomy and Space …
Terraces near Flamencos Lagoon in the southeastern Salar de Pajonales (Chile),
located at 3,517 m above sea level in the arid Altiplano, host relic gypsum
stromatolites and crusts formed under extreme desiccation, intense solar radiation …
Rapid inversion method for parameters of contact binaries based on intelligent optimization algorithms
X Zeng, Y Li, H He, S Zheng, G Xu, Z Chang, R Zhang… - New Astronomy, 2025
Extensive research on contact binaries has led to the publication of a significant
number of light curves. A key challenge now is efficiently deriving the fundamental
physical parameters of contact binaries from these light curves. This paper presents …
[PDF] The dynamic central environment of NGC 3516 revealed by XRISM
A Juráňová, E Kara, E Behar, E Costantini, JM Miller… - arXiv preprint arXiv …, 2025
We present a detailed, time-resolved analysis of the Fe K band of the Seyfert 1.5
galaxy NGC 3516 observed with XRISM. The 249 ks observation spanning $\sim$310
ks in elapsed time reveals an exceptionally rich and time-variable absorption …
[HTML] Optimizing Long-term Variability of Active Galactic Nucleus Light Curves. I. A Case Study with ZTF Observations in the EGS Field
J Lin, ZY Zheng, B Ma, L Long, Y Xie, P Lin, R Lin, X Ji - The Astrophysical Journal …, 2025
… comprising contemporary astronomy. The mission of the AAS is to enhance and
share humanity's scientific understanding of the universe. … We also acknowledge
the science research grants from the China Manned Space Project, especially No …
[PDF] Long-term Monitoring of Scintillation in the Pulsar J0332+ 5434
GC Brown, SZ Sheikh, LF Cruz, W Farah, V Gajjar… - The Astrophysical Journal, 2025
… subjects comprising contemporary astronomy. The mission of the AAS is to
enhance and share humanity's scientific understanding of the universe. … Our
bandwidth measurements were also shown to have a log-normal distribution, which …
[PDF] Magnetic activity of ultracool dwarfs in the LAMOST DR11
Y Xiang, S Gu, D Cao - arXiv preprint arXiv:2512.08305, 2025
… For the targets with parallaxes larger than five times the errors, we compute the
Galactic space velocities (𝑈𝑉𝑊) respective to the local standard of rest (LSR), in
which 𝑈 is positive toward the Galactic center, 𝑉 is positive along the direction of the …
[PDF] Time-Averaged Template for Stochastic Gravitational-Wave Background Detection in Space-Based Interferometers
J Wu, Y Tang - arXiv preprint arXiv:2512.08521, 2025
… for data analysis and parameter inference in future space-based gravitational-wave
missions, … template construction for high-precision SGWB analysis in future space-based
missions. … In this work, we focus on the two dominant contributors for space-based …
[PDF] First-Order Reversal Curve Mapping of Topological Hall Transport in Co/Pd Magnetic Multilayers
MS Huang, B Pfau, GJ Chen, SY Huang, X Fan…
… By integrating transport measurements with real-space visualization of
topological spin textures, this study establishes a unified framework for identifying
and characterizing skyrmion-related magnetic transformations in multilayer systems …
[PDF] Unified Algebraic Framework: Hierarchic Problem-Mass Gap Duality
S Suresh Kumar
… -dependent scale-spaces, we demonstrate that: (1) the hierarchy problem
reduces to nontrivial holonomy in scale-space (path-dependent … We provide
testable predictions for LHC, gravitational wave astronomy, and quantum computing …
[PDF] Extremely energetic EUV late phase of a pair of C-class flares caused by a non-eruptive sigmoid
Y Wang, SM Mulay, L Fletcher - arXiv preprint arXiv:2512.08324, 2025
The EUV late phase is the second increase of the irradiance of the warm coronal
lines during solar flares, and has a crucial impact on the Earth's ionosphere. In this
paper, we report on the extremely energetic EUV late phase of a pair of C-class …
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