Results 21 to 30 of about 200,604 (171)

Magnetic Structure of the High‐TN Antiferromagnet La0.5Sr3.5Fe3O7.5F2.6: A Temperature‐Dependent Mößbauer Spectroscopy and Neutron Diffraction Study

Zeitschrift für anorganische und allgemeine Chemie, EarlyView.
La0.5Sr3.5Fe3O7.5F2.6, a rare n = 3 Ruddlesden–Popper oxyfluoride, exhibits robust antiferromagnetism across a wide temperature range from 1.7 to 470 K. Temperature‐dependent neutron diffraction reveals an orthorhombic nuclear and a monoclinic magnetic structure, while Mößbauer spectroscopy shows persistent short‐range magnetic order up to 525 K.
Andy Bivour, Jonas Jacobs, Roberto Köferstein, Florian Daumann, Gerald Hörner, Birgit Weber, Clemens Ritter, Walter Schnelle, Claudia Felser, Stefan G. Ebbinghaus   +9 more
wiley   +1 more source

The Perturbations of a Hyperbolic Orbit by an Oblate Planet [PDF]

, 1963
Perturbation of hyperbolic orbit by oblate planet and escape hyperbola from ...
Sauer, C. G., Jr.
core  

From mystery to modulation: the structural story of Rb2[Si2O5]

Acta Crystallographica Section B, EarlyView.
The crystal structure of Rb2[Si2O5] has been solved and refined as an incommensurately modulated phase. Each [SiO4] tetrahedron of the phyllosilicate adopts one of two distinct orientations, and the positions of their constituent silicon and oxygen atoms are modeled using a combination of crenel and harmonic positional modulation functions.The crystal ...
Clivia Hejny, Volker Kahlenberg, Hannes Krüger   +2 more
wiley   +1 more source

A JWST Transit of a Jupiter Analog. I. Constraints on the Oblateness of Kepler-167 e

The Astronomical Journal
In 2024 October, JWST observed a transit of Kepler-167 e, a Jupiter-analog planet on a 1000+ day orbit. These observations, recorded over a long baseline of nearly 60 hr, were designed to search for signatures of planetary oblateness and/or exomoons ...
Ben Cassese, David Kipping, Quentin Changeat, Daniel A. Yahalomi, Justin Vega, Yayaati Chachan, Billy Edwards, Alex Teachey   +7 more
doaj   +1 more source

Macau as Method: Recombinant Urbanism in Post‐Socialist China

Asia Pacific Viewpoint, EarlyView.
ABSTRACT In ‘Asia as Method’, Chen Kuan‐Hsing argues for the value of an indigenous inter‐Asian approach to analysing the effects of European imperialism on the countries and citizens of Asia. This article mobilises both Chen's inter‐Asian referencing strategy and the city‐state of Macau to explore Macau's role in China's engagements with global ...
Tim Simpson
wiley   +1 more source

A General, Differentiable Transit Model for Ellipsoidal Occulters: Derivation, Application, and Forecast of Planetary Oblateness and Obliquity Constraints with JWST

The Astrophysical Journal
Increasingly precise space-based photometry uncovers higher-order effects in transits, eclipses, and phase curves that can be used to characterize exoplanets in novel ways.
Shashank Dholakia, Shishir Dholakia, Benjamin J. S. Pope   +2 more
doaj   +1 more source

Quantifying the Relationship Between Climatic Conditions and Personal Financial and Health Well‐Being

Oxford Bulletin of Economics and Statistics, Volume 88, Issue 5, Page 1108-1123, October 2026.
ABSTRACT We address an important research gap by quantifying the association between weather conditions (sunshine, rainfall, temperature anomalies) and individual financial, mental and physical health self‐assessments. We compile a unique dataset of >400,000$$ >\mathrm{400,000} $$ observations (1991–2018) by matching individual‐level data (covering 380
Georgios Marios Chrysanthou, Panagiotis Tzouvanas   +1 more
wiley   +1 more source

Intermediary equatorial orbits of an artificial satellite

, 1962
A previous paper derived the solution for the drag-free motion of an artificial satellite in the gravitational field of an oblate planet. The corresponding potential, expressed in oblate spheroidal coordinates, leads to separability and represents the ...
Vinti, John P.
core   +1 more source

Characterization of the Plumbing System Beneath Askja Caldera, Iceland, Revealed by Microgravity and Deformation Data During Uplift Between 2022 and 2023

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 9, September 2026.
Abstract In July 2021, an episode of uplift started at Askja caldera, Iceland, following over 50 years of subsidence. The initial inflation rate was approximately 700mm/yr $700\hspace*{.5em}\mathrm{m}\mathrm{m}/\mathrm{y}\mathrm{r}$, declining to 350mm/yr $350\hspace*{.5em}\mathrm{m}\mathrm{m}/\mathrm{y}\mathrm{r}$ within 1 month.
Josefa Sepúlveda‐Araya, Andrew Hooper, Elske van Dalfsen, Susanna K. Ebmeier, Michelle Parks, Freysteinn Sigmundsson, Yilin Yang, Milan Lazecký, Mathijs Koymans, Chiara Lanzi, Pedro Espín‐Bedón   +10 more
wiley   +1 more source

Satellite motion for all inclinations around an oblate planet [PDF]

Symposium - International Astronomical Union, 1966
A uniformly valid solution for the motion of a satellite around an oblate planet is presented. The Two-Variable Expansion Procedure was applied to obtain a solution valid for all inclinations including the critical. This solution is correct to order ε, where ε is a small parameter proportional to the oblateness parameterJ2. The reciprocal of the radius
M. Eckstein, Y. Shi, J. Kevorkian
openaire   +1 more source