Results 81 to 90 of about 458,052 (359)

The visual, the textual, and the one‐dimensional: An exploration of the visual elements of bibliographic classification schemes

open access: yesJournal of the Association for Information Science and Technology, EarlyView.
Abstract Classification schemes are a key way of organizing bibliographic knowledge, yet the way that classification schemes communicate their information to classifiers receives little attention. This article takes a novel approach by exploring the visual aspects contained within classification schemes.
Deborah Lee
wiley   +1 more source

Relativistic Binaries in Globular Clusters

open access: yesLiving Reviews in Relativity, 2006
The galactic population of globular clusters are old, dense star systems, with a typical cluster containing 10^4 - 10^7 stars. As an old population of stars, globular clusters contain many collapsed and degenerate objects. As a dense population of stars,
Benacquista Matthew J.
doaj  

Dynamical Analysis of the Redshift Drift in FLRW Universes

open access: yesUniverse
Redshift drift is the phenomenon whereby the observed redshift between an emitter and observer comoving with the Hubble flow in an expanding FLRW universe will slowly evolve—on a timescale comparable to the Hubble time.
Francisco S. N. Lobo   +3 more
doaj   +1 more source

Nonlinear Spectroscopy of Alkali Atoms in Cold Medium of Astrophysical Relevance

open access: yesAtoms, 2017
The time-dependent population dynamics of hyperfine (HF) sublevels of n 2 p 3 / 2 atomic states upon laser excitation in a cold medium of alkali atoms is examined.
Dmitry K. Efimov   +7 more
doaj   +1 more source

Estimated equivalent radiation dose at different altitudes in Earth’s atmosphere

open access: yesSolar-Terrestrial Physics, 2022
The paper reports the results of simulation of cosmic ray proton transport through Earth’s atmosphere. The main objective of this work is to obtain characteristics of secondary particle fluxes at different altitudes and to convert them to equivalent dose
Maurchev E. A.   +4 more
doaj   +1 more source

Cosmology Intertwined: A Review of the Particle Physics, Astrophysics, and Cosmology Associated with the Cosmological Tensions and Anomalies [PDF]

open access: yesJournal of High Energy Astrophysics, 2022
E. Abdalla   +202 more
semanticscholar   +1 more source

The Athena space X‐ray observatory and the astrophysics of hot plasma † [PDF]

open access: yesAstronomical Notes - Astronomische Nachrichten, 2019
The properties (temperature, density, chemical composition, velocity) of hot astrophysical plasma and the physical processes affecting them (heating/cooling, turbulence, shocks, acceleration) can be probed by high resolution X-ray spectroscopy, to be ...
D. Barret   +6 more
semanticscholar   +1 more source

The Quest for the Quark‐Gluon Plasma From the Perspective of Dynamical Models of Relativistic Heavy‐Ion Collisions

open access: yesAstronomische Nachrichten, EarlyView.
ABSTRACT The physics of heavy‐ion collisions is one of the most exciting and challenging directions of science for the last four decades. On the theoretical side one deals with a non‐abelian field theory, while on the experimental side today's largest accelerators are needed to enable these studies.
Marcus Bleicher, Elena Bratkovskaya
wiley   +1 more source

Physics of Neutron Star Crusts

open access: yesLiving Reviews in Relativity, 2008
The physics of neutron star crusts is vast, involving many different research fields, from nuclear and condensed matter physics to general relativity.
Chamel Nicolas, Haensel Pawel
doaj  

The activation method for cross section measurements in nuclear astrophysics [PDF]

open access: yesEuropean Physical Journal A, 2019
The primary aim of experimental nuclear astrophysics is to determine the rates of nuclear reactions taking place in stars in various astrophysical conditions.
G. Gyürky   +4 more
semanticscholar   +1 more source

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