Results 101 to 110 of about 95,116 (297)
British Educational Research Journal, EarlyView.Abstract Recent years have seen a growing scholarly interest in youth activism (YA), a phenomenon often viewed as a positive development in response to declining civic and political engagement among young people. However, most of the research focuses on the activists themselves and gives less attention to how YA is perceived by the broader youth ...
Martyna Elerian +2 more
wiley +1 more source
Resolving the discrepancy between X-ray and gravitational lensing mass measurements for clusters of galaxies [PDF]
, 1997 We present a detailed comparison of mass measurements for clusters of galaxies using ASCA and ROSAT X-ray data and constraints from strong and weak gravitational lensing.
Allen, S. W.
core +2 more sources
Gravitational lensing effects of black hole with conformally coupled scalar hair
European Physical Journal C: Particles and Fields, 2023 In this paper, we investigate the gravitational lensing effects in the weak and strong field limits of a static black hole with conformally coupled scalar field.
Qi Qi +3 more
doaj +1 more source
The necessity of dark matter in MOND within galactic scales
, 2007 To further test MOdified Newtonian Dynamics (MOND) on galactic scales -- originally proposed to explain the rotation curves of disk galaxies without dark matter -- we study a sample of six strong gravitational lensing early-type galaxies from the CASTLES
H. Zhao +4 more
core +1 more source
A Dark Census: Statistically Detecting the Satellite Populations of Distant Galaxies [PDF]
, 2016 In the standard structure formation scenario based on the cold dark matter paradigm, galactic halos are predicted to contain a large population of dark matter subhalos.
Cyr-Racine, Francis-Yan +4 more
core +2 more sources
Strong gravitational lensing and shadow constraint from M87* of slowly rotating Kerr-like black hole [PDF]
Annals of Physics, 2022 Xiao-Mei Kuang, A. Ovgun
semanticscholar +1 more source
Constraining the Rastall parameters in static space–times with galaxy-scale strong gravitational lensing [PDF]
Monthly notices of the Royal Astronomical Society, 2019 Recently, Rastall gravity has undergone a significant surge in popularity. We obtain a power-law total mass-density profile for the inner region (within several effective radius) of early-type galaxies (ETGs) from the space-time structures which are ...
Rui Li +3 more
semanticscholar +1 more source
British Educational Research Journal, EarlyView.Abstract International student mobility (ISM) has historically followed a pattern of movement from developing regions to developed countries. However, in recent years, there has been a noticeable increase in the number of Chinese students pursuing doctoral studies in Southeast Asian developing countries, an area that has received relatively little ...
Yueyang Zheng +2 more
wiley +1 more source
Possible Discrimination of Black Hole Origins from the Lensing Rate of DECIGO and B-DECIGO Sources
The Astrophysical Journal, 2023 In this paper, we forecast the expected detection rates and redshift distributions of gravitationally lensed gravitational waves (GWs) from three different mass distributions of primordial black holes (PBHs) and two stellar formation models of ...
Bin Liu +4 more
doaj +1 more source
The necessity of dark matter in MOND within galactic scales [PDF]
, 2008 To further test MOdified Newtonian Dynamics (MOND) on galactic scales -- originally proposed to explain the rotation curves of disk galaxies without dark matter -- we study a sample of six strong gravitational lensing early-type galaxies from the CASTLES
Ferreras, I, Sakellariadou, M, Yusaf, MF
core