Results 131 to 140 of about 33,060 (268)

Gravitational lensing by deformed Horava-Lifshitz black hole in rainbow gravity

open access: yesPhysics Letters B
In this study, we investigate the gravitational lensing effects of deformed Horava-Lifshitz black holes, considering both strong and weak-field limit approximations and incorporating the impact of rainbow functions.
Aniruddha Ghosh, Ujjal Debnath
doaj   +1 more source

The Ties That Rhyme: Duality in Symbolic and Structural Networks of Grime Music

open access: yesThe British Journal of Sociology, EarlyView.
ABSTRACT Do birds of a feather really sing together? Musicians face two competing pressures in the pursuit of success: conforming to genre norms to meet audience expectations and distinguishing themselves to attract the attention of listeners. These opposing logics may shape how artists choose their collaborators.
Tom R. Leppard, Andrew P. Davis
wiley   +1 more source

On the inversion methods of strong gravitational lensing [PDF]

open access: yes, 2007
In dieser Dissertation präsentiere ich eine neue Methode zur Inversion der Linsengleichung. Der präsentierte Algorithmus basiert auf dem Modifizierten Hausdorff- Abstand zwischen beobachteten und modell- erzeugten Bögen als eine Funktion der Fit-Güte.
openaire   +1 more source

Lensing, Not Luck! Detection Prospects of Strongly Lensed Gravitational Waves

open access: yesThe Astrophysical Journal
A small fraction of gravitational-wave (GW) signals detected by ground-based observatories will be strongly lensed by intervening galaxies or clusters. This may produce multiple copies of the signals (i.e., lensed images) arriving at different times at ...
Ankur Barsode   +2 more
doaj   +1 more source

Change in migrants’ political attitudes: Acculturation and cosmopolitanization

open access: yesAmerican Journal of Political Science, EarlyView.
Abstract This paper investigates change in international migrants’ political attitudes. It theorizes a novel attitudinal typology distinguishing polity‐specific attitudes influenced by national contexts and transnational attitudes forged by migratory experience. It applies the typology to four dimensions of political competition in contemporary Europe:
Eva Krejcova   +2 more
wiley   +1 more source

Generating Dark Matter Subhalo Populations Using Normalizing Flows

open access: yesThe Open Journal of Astrophysics
Strong gravitational lensing is a powerful tool for probing the nature of dark matter, as lensing signals are sensitive to the dark matter substructure within the lensing galaxy.
Jack Lonergan   +2 more
doaj   +1 more source

The Role of B Corp Certification in Uncertain Times: An Empirical Investigation

open access: yesBusiness Ethics, the Environment &Responsibility, EarlyView.
ABSTRACT This paper aims to examine whether B Corp certification enhances firms' ability to navigate uncertain times and how contingent factors affect its effectiveness. Building on Stakeholder Theory and the Resource‐Based View, we formulated a set of research hypotheses and tested them with a long‐term event study and an ordinary least squares ...
Matteo Podrecca   +2 more
wiley   +1 more source

Strong gravitational lensing by $$Sgr A^*$$ S g r A ∗ and $$M87^*$$ M 87 ∗ black holes embedded in dark matter halo exhibiting string cloud and quintessential field

open access: yesEuropean Physical Journal C: Particles and Fields
We investigate the strong gravitational lensing phenomena caused by a black hole with a dark matter halo in the presence of cloud string and quintessence.
Niyaz Uddin Molla   +5 more
doaj   +1 more source

Heritage language learners' language availability and choice: A case study of primary school Persian learners in Australia

open access: yesForeign 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

Cluster Lensing Mass Inversion (CLUMI+): Combining Dynamics and Weak Lensing around Galaxy Clusters

open access: yesThe Astrophysical Journal
We present clumi+ , a self-consistent, multiprobe methodology for reconstructing the mass distribution in and around galaxy clusters by combining gravitational lensing and dynamical observations. Building on the joint likelihood framework of K.
Keiichi Umetsu   +3 more
doaj   +1 more source

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