Results 121 to 130 of about 65,765 (275)
Ellipticities of Galaxy Cluster Halos from Halo–Shear–Shear Correlations
The Astrophysical JournalWe report the first detection of the halo ellipticities of galaxy clusters by applying the halo–shear–shear correlations (HSSCs), without the necessity of using major axis determination.
Zhenjie Liu +3 more
doaj +1 more source
Foreign Language Annals, EarlyView.Abstract This study investigates the factors influencing Persian language learning among heritage language learners in Sydney, Australia, with a particular focus on how formal and informal settings shape language choice and availability. The research employs a qualitative case study approach, incorporating data from student focus groups, semi ...
Mojgan Mokhatebi Ardakani, Dara Tafazoli
wiley +1 more source
Light bending and gravitational lensing in Brans-Dicke theory
Physics Letters B, 2019 As an important candidate theory of gravity, Brans-Dicke theory has been widely studied. In this paper, we investigate light bending and gravitational lensing by compact objects in Brans-Dicke theory in weak gravitational field.
Xiaojun Gao, Shupeng Song, Jinsong Yang
doaj +1 more source
Indefinitely Flat Circular Velocities and the Baryonic Tully–Fisher Relation from Weak Lensing [PDF]
Astrophysical Journal LettersWe use a new deprojection formula to infer the gravitational potential around isolated galaxies from weak gravitational lensing. The results imply circular velocity curves that remain flat for hundreds of kiloparsecs, greatly extending the classic result
Tobias Mistele +4 more
semanticscholar +1 more source
An Economic Analysis of Difficulty Adjustment Algorithms in Proof‐of‐Work Blockchain Systems
International Economic Review, EarlyView.ABSTRACT We study the stability of cryptocurrency systems through difficulty adjustment. Bitcoin's difficulty adjustment algorithm (DAA) exhibits instability when the reward elasticity of the hash rate is high, implying that a sharp price reduction could disrupt the current Bitcoin system.
Shunya Noda +2 more
wiley +1 more source
JCMS: Journal of Common Market Studies, EarlyView.Abstract The article presents a model that conceptualizes the discursive construction of post‐disruption dynamics endorsed and reproduced by the affected parties and its potential to (not) contribute to future co‐operation. Conceiving of Brexit as a prime case of a broader phenomenon of post‐disruption contexts, this paper applies this model to the ...
Monika Brusenbauch Meislová
wiley +1 more source
Forecast of Joint Analysis of Cosmic Shear and Supernovae Magnification from the CSST and LSST
The Astrophysical JournalCosmic shear and cosmic magnification reflect the same gravitational lensing field. Each of these two probes are affected by different systematics. We study the auto- and cross-correlations of cosmic shear from the China Space Survey Telescope and cosmic
Ye Cao, Bin Hu, Ji Yao, Hu Zhan
doaj +1 more source
Weak gravitational lensing of quantum perturbed lukewarm black holes and cosmological constant effect [PDF]
, 2017 Hossein Ghaffarnejad, M. A. Mojahedi
openalex +1 more source
Journal of Family Theory &Review, EarlyView.ABSTRACT An intersectionality framework was utilized to investigate how sexism, racism, classism, and anti‐transgender bias played a role in one custody case involving a transgender child. This case study—the story of a Black Latina affirming mother, who underwent a seven‐year custody battle with the white father of their biracial transgender daughter ...
Katherine A. Kuvalanka +3 more
wiley +1 more source