Results 161 to 170 of about 4,313 (174)

Optimizing Extended Tight‐Binding Methods for Metal‐Surface Interactions

ChemPhysChem, Volume 26, Issue 23, November 28, 2025.
This work demonstrates how systematic parameter optimization within GFN1‐xTB (Geometry, Frequency, Noncovalent, eXtended Tight‐Binding) framework improves the accuracy of water–metal interaction energies. Using Sobol sensitivity analysis, key parameters are identified and optimized for copper, silver, gold, palladium, and platinum surfaces.
Siyavash Moradi, Pooria Dabbaghi, Christopher J. Stein   +2 more
wiley   +1 more source

Satellite Imagery Reveals Near‐Horizon Urban Light Emissions Impacting Ambient Environment

Journal of Geophysical Research: Atmospheres, Volume 130, Issue 22, 28 November 2025.
Abstract A novel method has been developed to characterize ground‐based light sources from nighttime satellite imagery. The fraction of light directed toward low elevation angles is determined relative to the total emission into the upper hemisphere. This approach aims to identify locations that exhibit an increased amount of light emission at angles ...
Miroslav Kocifaj, Ladislav Kómar
wiley   +1 more source

“My Xene.” Care, Affect, and Creative Non‐Fiction Among Mothers and Daughters

Anthropology and Humanism, Volume 50, Issue 2, December 2025.
Eleni Sideri
wiley   +1 more source

BLUE STRAGGLERS - CONCLUDING REMARKS

, 1993
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Radial velocities of blue stragglers in M3

Publications of the Astronomical Society of the Pacific, 1983
The authors have obtained 1 A resolution spectra of five blue stragglers in M3 all with mv ≥ 17.3 using the MMT spectrograph and photon-counting Reticon. The spectra cover the range 4580 A to 5450 A, and except for Hβ are devoid of strong features. From measurements of the Hβ lines in the five blue stragglers and three velocity standards the authors ...
F. H., Jr. Chaffee, H. D. Ables
openaire   +1 more source

Allan Sandage: Blue Stragglers

2021
One of the more recent stellar discoveries was made by noticing something out of place in globular cluster Messier 3 (M3) (Fig. 19.1).
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Binary population synthesis for blue stragglers

Astrophysics and Space Science, 2010
In this talk, we will simply show the consequences of binary population synthesis for blue stragglers, such as the integrated spectral energy distribution (ISED), the color-magnitude diagram, the specific frequency, and the influences on colors. Blue stragglers have been found in all stellar populations and they are an important population component in
X. Chen, Z. Han
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Are All Blue Stragglers Ap Stars?

International Astronomical Union Colloquium, 1976
SummaryA list of open clusters with blue stragglers studied for Ap characteristics is presented. In addition to previously published results new spectroscopic data are given of blue stragglers in the open cluster IC 4756 derived from ESO spectrograms taken in 1973. Preliminary conclusions concerning the status of Ap stars and blue stragglers are drawn.
E.S. Pendl, W. Seggewiss
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The Case of the Blue Stragglers

Science, 1994
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Blue stragglers

Publications of the Astronomical Society of the Pacific, 1993
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