Results 61 to 70 of about 729,877 (305)

Hyperons and Neutron Stars [PDF]

open access: yesProceedings of The Modern Physics of Compact Stars 2015 — PoS(MPCS2015), 2013
Abstract In this work we briefly review some of the effects of hyperons on neutron and proto-neutron star properties. We revise the problem of the strong softening of the EoS, and the consequent reduction of the maximum mass, due to the presence of hyperons, a puzzle which has become more intriguing due the recent measurements of the unusually high ...
openaire   +2 more sources

Sonoluminescence in neutron stars [PDF]

open access: yesPhysics Letters B, 1998
After a brief discussion of a possible relationship between the electroweak phase transition in highly compressed matter and gravitational collapse, we examine the speculative possibility that the electroweak phase transition might be contemporarily occurring in processes in neutron stars. We conjecture that adiabatic compression of neutron star matter
Simmons, Walter   +3 more
openaire   +2 more sources

Constraining the Maximum Mass of Neutron Stars from Multi-messenger Observations of GW170817 [PDF]

open access: yes, 2017
We combine electromagnetic (EM) and gravitational-wave (GW) information on the binary neutron star (NS) merger GW170817 in order to constrain the radii and maximum mass of NSs.
B. Margalit, B. Metzger
semanticscholar   +1 more source

New Constraints on Radii and Tidal Deformabilities of Neutron Stars from GW170817. [PDF]

open access: yesPhysical Review Letters, 2018
We explore in a parameterized manner a very large range of physically plausible equations of state (EOSs) for compact stars for matter that is either purely hadronic or that exhibits a phase transition.
E. Most   +3 more
semanticscholar   +1 more source

Compactness of Neutron Stars

open access: yesPhysical Review Letters, 2015
Recent progress in the determination of both masses and radii of neutron stars is starting to place stringent constraints on the dense matter equation of state. In particular, new theoretical developments together with improved statistical tools seem to favor stellar radii that are significantly smaller than those predicted by models using purely ...
Wei-Chia, Chen, J, Piekarewicz
openaire   +3 more sources

Evolution of Neutron Stars and Observational Constraints

open access: yesEPJ Web of Conferences, 2010
The structure and evolution of neutron stars is discussed with a view towards constraining the properties of high density matter through observations.
Lattimer J.
doaj   +1 more source

Nucleosynthesis in low-mass stars: Shedding light on the cosmic origin of heavy elements [PDF]

open access: yesEPJ Web of Conferences
Low-mass, low-metallicity stars while evolving through the asymptotic giant branch (AGB) phase undergo significant nucleosynthesis producing the majority of slow (s-) and intermedite (i-) neutron capture elements.
Goswami Aruna
doaj   +1 more source

What can neutron stars reveal about the equation of state of dense matter? [PDF]

open access: yesEPJ Web of Conferences, 2020
Neutron stars are astrophysical objects of extremes, reaching the highest densities we can observe in the cosmos, and probing matter under conditions that cannot be recreated in terrestrial experiments.
Tews Ingo
doaj   +1 more source

Multi-messenger Observations of a Binary Neutron Star Merger

open access: yesProceedings of Multifrequency Behaviour of High Energy Cosmic Sources - XIII — PoS(MULTIF2019), 2019
On 2017 August 17 a binary neutron star coalescence candidate (later designated GW170817) with merger time 12:41:04 UTC was observed through gravitational waves by the Advanced LIGO and Advanced Virgo detectors.
Virgo Antares Ligo Sci   +12 more
semanticscholar   +1 more source

Proto-neutron stars with heavy baryons and universal relations [PDF]

open access: yes, 2020
We use covariant density functional theory to obtain the equation of state (EoS) of matter in compact stars at non-zero temperature, including the full baryon octet as well as the $\Delta(1232)$ resonance states. Global properties of hot $\Delta$-admixed
A. Raduta, M. Oertel, A. Sedrakian
semanticscholar   +1 more source

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