Results 61 to 70 of about 1,078 (229)

Hybrid quark stars with quark-quark phase transitions

open access: yesPhysical Review D
13 pages, 7 figures; updated version with possible signatures of gravitational wave ...
Zongcan Yang   +5 more
openaire   +2 more sources

QUARK-CLUSTER STARS: THE STRUCTURE

open access: yesInternational Journal of Modern Physics: Conference Series, 2013
The nature of pulsar-like compact stars is still in controversy although the first pulsar was found more than 40 years ago. Generally speaking, conventional neutron stars and non-mainstream quark stars are two types of models to describe the inner structure of pulsars, with the former composed mainly of hadrons and the latter of a peculiar kind of ...
Lai, Xiaoyu, Xu, Renxin
openaire   +2 more sources

The missing compact star of SN1987A: a solid quark star? [PDF]

open access: yes, 2012
To investigate the missing compact star of Supernova 1987A (SN1987A), we analysed the cooling and heating processes of a possible compact star based on the upper limit of observational X-ray luminosity.
Liang, J. D.   +4 more
core   +1 more source

Different demographic drivers of recovery in two adjacent populations of a long‐lived bird of prey

open access: yesOikos, EarlyView.
Understanding the demographic mechanisms underlying population decline or recovery is critical for conservation and management, yet similar population trends may arise from very different underlying processes. Comparing populations of vulnerable species groups like long‐lived raptors in different environments can reveal how species respond to change ...
Carina Nebel   +4 more
wiley   +1 more source

Anisotropic quark stars with an interacting quark equation of state [PDF]

open access: yesPhysical Review D, 2019
A deep exploration of the parameter space that relates the interacting equation of state with the bag constant B, and the interaction parameter a, is fundamental for the construction of diverse models of quark stars. In particular, the anisotropy of quark stars with a well-motivated quantum chromodynamics (QCD) equation of state is presented here.
Becerra-Vergara E. A.   +3 more
openaire   +3 more sources

Coalescence of compact binary stars with a quark star component [PDF]

open access: yes, 2012
Coalescing compact star binaries are among the most promising sources for the next generation of gravitational detectors. Accurate theoretical waveform templates are required to extract their gravitational wave signal from noisy data and it is expected ...
Koshy, Sam
core  

QUARK MATTER IN MASSIVE COMPACT STARS [PDF]

open access: yesThe Astrophysical Journal, 2011
The recent observation of the pulsar PSR J1614-2230 with a mass of 1.97 +/- 0.04 M_sun gives a strong constraint on the quark and nuclear matter equations of state (EoS). We explore the parameter ranges for a parameterized EoS for quark stars. We find that strange stars, made of absolutely stable strange quark matter, comply with the new constraint ...
S. Weissenborn   +4 more
openaire   +3 more sources

Combustion of a neutron star into a strange quark star: The neutrino signal [PDF]

open access: yes, 2013
There are strong indications that the process of conversion of a neutron star into a strange quark star proceeds as a strong deflagration implying that in a few milliseconds almost the whole star is converted.
PAGLIARA, Giuseppe   +2 more
core   +1 more source

STAR highlights on heavy ion physics

open access: yesEPJ Web of Conferences, 2015
RHIC-STAR is a mid-rapidity collider experiment for studying high energy nuclear collisions. The main physics goals of STAR experiment are 1) studying the properties of the strongly coupled Quark Gluon Plasma 2) explore the QCD phase diagram structure ...
Shi Shusu
doaj   +2 more sources

Nature's Complexity Alive: Farewell to Several Unificatory Cosmological Arguments for Monism

open access: yesNoûs, EarlyView.
ABSTRACT Throughout history, numerous thinkers have claimed that monism—in the form of priority monism, existence monism, monotheistic monism, or versions that posit an extra‐cosmic ultimate being—theoretically surpasses pluralism, above all by positing a unified universe.
Lok‐Chi Chan
wiley   +1 more source

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