نتایج جستجو برای: cosmogony
تعداد نتایج: 181 فیلتر نتایج به سال:
The outstanding problem in cosmology today is undoubtedly the origin and evolution of large scale structure. In this context, no model has proved as successful as the standard Cold Dark Matter (CDM) model, based on a flat (scale-invariant) spectrum of density fluctuations growing under gravitational instability. Nevertheless, pressure has recently been exerted on the model both from analyses of...
This paper examines several methods of tracing galaxies in N-body simulations and the effects of these methods on the derived galaxy statistics. Special attention is paid to the phenomenon of velocity bias, the idea that the velocities of galaxies may be systematically different from that of the mass distribution. Using two simulations with identical initial conditions, one following a single d...
We present the results of X-ray imaging and spectroscopic analysis of a sample of Seyfert 2 galaxies that contain starbursts, based on their optical and UV characteristics. These composite galaxies exhibit extended, soft, thermal X-ray emission, which we attribute to their starburst components. Comparing their X-ray and far-infrared properties with ordinary Seyfert and starburst galaxies, we id...
We review some of our recent progress in modelling the formation of disk galaxies in the framework of hierarchical structure formation. Our model is not only consistent with the local observations, but also provides a good description of disk evolution out to redshift z ∼ 1. We use this model to interpret recent observational results on Lymanbreak galaxies (LBGs) at z ≈ 3. Assuming that these g...
This paper addresses recent debates about body (tsaa) formation and the process of health and illness among the Hupd'ah, also known as Maku of the Uaupés, Papuri and Tiquié rivers. The ethnographic data presented here evinces the relationship between the main substances existing in the body (hãwäg and b’atìb) and manifest in the Hup physiology as well as the potential ways of understanding the ...
Christopher Langan's CTMU offers a new look into an old place: the universe. This theory is both attractive and elusive, a mixture of cosmology and ontology which promises a reunification of what science has so ignobly divided. While the cosmological and spiritual pieces of the puzzle are beyond the scope of this author's competence to define, I propose to demonstrate through specific psycholog...
A free Plain Language Summary can be found within the Supporting Information of this article. Various conceptual approaches have been developed to understand and analyse processes transition or transformation in society (Patterson et al., 2017). Among them, social-ecological systems (SESs) are complex integrated which humans part nature (Berkes & Folke, 1998). SESs dynamic, changes occur across...
This article identifies the tropes of “maturity” and “immaturity” in the dialogue between religion and science. On both sides of the aisle, authors charge, either directly or indirectly, that their dissenting interlocutors are not mature enough to see the value of their respective positions. Such accusations have recently emerged in discussions pertaining to Hindu theology, Indology, and scienc...
We provide an epistemological analysis of the developments of relativistic cosmology from 1917 to 2006, based on the seminal articles by Einstein, de Sitter, Friedmann, Lemaitre, Hubble, Gamow and other main historical figures of the field. It appears that most of the ingredients of the present-day standard cosmological model, such as the accelation of the expansion due to a repulsive dark ener...
The physics that was taught in the 20th century was supposedly based on Einstein. In fact this is not the case, there was a conspiracy against Einstein and his theory was replaced by the physics establishment in 1925/ 1926 by a false theory that is still called Einstein’s theory. The conspiracy started before World war 2, and was maintained after the war because of Cold War tensions of wanting ...
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