Results 81 to 90 of about 458,052 (359)
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
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
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
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
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]
E. Abdalla+202 more
semanticscholar +1 more source
The Athena space X‐ray observatory and the astrophysics of hot plasma † [PDF]
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
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
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]
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