Results 11 to 20 of about 1,482,374 (348)

On quintessence star model and strange star [PDF]

open access: yesEuropean Physical Journal C: Particles and Fields, 2020
The astronomical observations on the accelerated expansion of the universe generate the possibility that the internal matter of the stars is not only formed by ordinary matter but also by matter with negative pressure.
Gabino Estevez-Delgado   +1 more
doaj   +2 more sources

The extended, relativistic hyperon star model [PDF]

open access: yesPhysical Review C, 2002
In this paper an equation of state of neutron star matter which includes strange baryons in the framework of Zimanyi and Moszkowski (ZM) model has been obtained.
.P.-G. Reinhard   +31 more
core   +4 more sources

Converting neutron stars into strange stars: Instanton model [PDF]

open access: yesInternational Journal of Modern Physics D, 2014
We calculate the quasiclassical probability to emerge the quantum fluctuation which gives rise to the quark-matter drop with interface propagating as the self-similar spherical detonation wave (DN) in the ambient nuclear matter. For this purpose, we make use of instanton method which is known in the quantum field theory.
Gurovich, Victor Ts., Fel, Leonid G.
openaire   +2 more sources

Neutron Star Models [PDF]

open access: yesSymposium - International Astronomical Union, 1981
The current state of neutron star structure calculations is reviewed. Uncertainties in the equation of state for matter at and above nuclear density remain. The role of the delta resonance, pion condensates, and quark matter is reviewed. Despite uncertainties, we find that recent models yield stable neutron star masses which are consistent with ...
V. Canuto, Richard L. Bowers
openaire   +1 more source

RJA-Star Algorithm for UAV Path Planning Based on Improved R5DOS Model

open access: yesApplied Sciences, 2023
To improve the obstacle avoidance ability of agricultural unmanned aerial vehicles (UAV) in farmland settings, a three-dimensional space path planning model based on the R5DOS model is proposed in this paper. The direction layer of the R5DOS intersection
Jian Li   +5 more
doaj   +1 more source

A progeroid syndrome caused by a deep intronic variant in TAPT1 is revealed by RNA/SI‐NET sequencing

open access: yesEMBO Molecular Medicine, 2023
Exome sequencing has introduced a paradigm shift for the identification of germline variations responsible for Mendelian diseases. However, non‐coding regions, which make up 98% of the genome, cannot be captured.
Nasrinsadat Nabavizadeh   +20 more
doaj   +1 more source

Hadron Star Models [PDF]

open access: yesSymposium - International Astronomical Union, 1974
The properties of fully relativistic rotating hadron star models are discussed using models based on recently developed equations of state. All of these stable neutron star models are bound with binding energies as high as ∼ 25%. During hadron star formation, much of this energy will be released.
Jeffrey M. Cohen, Gerhard Börner
openaire   +1 more source

STAR-MATRIX MODELS [PDF]

open access: yesModern Physics Letters A, 1995
The star-matrix models are difficult to solve due to the multiple powers of the Vandermonde determinants in the partition function. We apply to these models a modified Q-matrix aprpoach and we get results consistent with those obtained by other methods.
openaire   +3 more sources

Monolithic or hierarchical star formation? A new statistical analysis [PDF]

open access: yes, 1998
We consider an analytic model of cosmic star formation which incorporates supernova feedback, gas accretion and enriched outflows, reproducing the history of cosmic star formation, metallicity, supernovae type II rates and the fraction of baryons ...
Kampakoglou, Marios   +2 more
core   +1 more source

Early-forming Massive Stars Suppress Star Formation and Hierarchical Cluster Assembly

open access: yesThe Astrophysical Journal, 2023
Feedback from massive stars plays an important role in the formation of star clusters. Whether a very massive star is born early or late in the cluster formation timeline has profound implications for the star cluster formation and assembly processes. We
Sean C. Lewis   +10 more
doaj   +1 more source

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