Results 81 to 90 of about 310,031 (299)
Cosmological implications of Kalb-Ramond-like particles
Journal of High Energy PhysicsThe Kalb-Ramond field is an antisymmetric, rank-two tensor field which most notably appears in the context of string theory, but has largely been unexplored in the context of cosmology.
Christian Capanelli +3 more
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Black hole shadow with a cosmological constant for cosmological observers
European Physical Journal C: Particles and Fields, 2019 We investigate the effect of the cosmological constant on the angular size of a black hole shadow. It is known that the accelerated expansion which is created by the cosmological constant changes the angular size of the black hole shadow for static ...
Javad T. Firouzjaee, Alireza Allahyari
doaj +1 more source
Trapped surfaces in cosmological spacetimes [PDF]
, 1995 We investigate the formation of trapped surfaces in cosmological spacetimes, using constant mean curvature slicing. Quantitative criteria for the formation of trapped surfaces demonstrate that cosmological regions enclosed by trapped surfaces may have ...
Malec, Edward, Murchadha, Niall Ó
core +4 more sources
Perspectiva Filosófica, 2020 Posidonius incorporated important concepts of Peripatetic physics into his system. Posidonius adopted a finitist cosmological model where the extra- cosmic void was not infinite but just as large as the cosmos’ size at the time of the conflagration (F 84/97a E ̶ K).
openaire +3 more sources
Feminist Anthropology, EarlyView.Abstract This article explores how Afro‐Brazilian communities in Pernambuco respond to state‐led industrial development through culturally rooted practices of resistance and repair. Drawing on archival and ethnographic research in the coastal municipalities of Cabo de Santo Agostinho and Ipojuca, this study traces the effects of Brazil's large‐scale ...
Shelly Annette Biesel
wiley +1 more source
Exploring f(Q) gravity through model-independent reconstruction with genetic algorithms
Physics Letters BIn this paper, we use a machine learning technique, specifically genetic algorithms, to reconstruct the functional form of f(Q) gravity in a model-independent manner. To achieve this, we use Hubble measurements derived from cosmic chronometers and radial
Redouane El Ouardi +4 more
doaj +1 more source
Detecting the cosmological recombination signal from space
, 2015 Spectral distortions of the CMB have recently experienced an increased interest. One of the inevitable distortion signals of our cosmological concordance model is created by the cosmological recombination process, just a little before photons last ...
Chluba, Jens +4 more
core +2 more sources
Feminist Anthropology, EarlyView.Abstract This article explores how queerness and religion intersect in a unique enactment of Bathukamma, a flower festival honoring the female divine in Hyderabad, the capital of the South Indian state of Telangana. Drawing on theories of figuration, I analyze how local queer organizations celebrate the festival in a way that engages two distinctive ...
Stefan Binder
wiley +1 more source
Thermodynamic topology of black holes within Tsallis statistics
Physics Letters BIn this paper, we investigate the thermodynamic topology of black holes within the framework of Tsallis statistics. By integrating Tsallis non-extensive statistics with topological thermodynamics, we analyze the local and global stability of various ...
Yahya Ladghami +4 more
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Quasars: Standard Candles up to z = 7.5 with the Precision of Supernovae Ia
The Astrophysical Journal, 2023 Currently, the Λ cold dark matter model, which relies on the existence of cold dark matter and a cosmological constant Λ, best describes the universe. However, we lack information in the high-redshift ( z ) region between Type Ia supernovae (SNe Ia; up ...
M. G. Dainotti +4 more
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