2019ApJ...871..157S

Query : 2019ApJ...871..157S

2019ApJ...871..157S - Astrophys. J., 871, 157-157 (2019/February-1)

The induced surface tension contribution for the equation of state of neutron stars.

SAGUN V.V., LOPES I. and IVANYTSKYI A.I.

Abstract (from CDS):

We apply a novel equation of state (EoS) that includes the surface tension contribution induced by interparticle interaction and asymmetry between neutrons and protons, to the study of neutron star (NS) properties. This elaborated EoS is obtained from the virial expansion applied to multicomponent particle mixtures with hard core repulsion. The considered model is in full concordance with all the known properties of normal nuclear matter, provides a high-quality description of the proton flow constraints, hadron multiplicities created during the nuclear-nuclear collision experiments, and equally is consistent with astrophysical data coming from NS observations. The analysis suggests that the best model parameterization gives the incompressibility factor K0, symmetry energy J, and symmetry energy slope L at normal nuclear density equal to 200 MeV, 30 MeV, and 113.28-114.91 MeV, respectively. The mass-radius relations found for NSs computed with this EoS are consistent with astrophysical observations.

Abstract Copyright: © 2019. The American Astronomical Society. All rights reserved.

Journal keyword(s): dense matter - equation of state - stars: neutron

Simbad objects: 1

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Number of rows : 1
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 MXB 1658-298 LXB 17 02 06.54 -29 56 44.1 18.35 18.75 18.3     ~ 381 0

Query : 2019ApJ...871..157S

Basic data :
MXB 1658-298 -- Low Mass X-ray Binary
Other object types: otypes_help 		LXB (), X (2022MNRAS,4U,...), N* (2014MNRAS), V* (V*), * ([FLM99]), gam (INTREF)
ICRS coord. (ep=J2000) : 		17 02 06.54 -29 56 44.1 [ ] D 2003ApJ...594..952W
FK4 coord. (ep=B1950 eq=1950) : 		16 58 55.61 -29 52 26.8 [ ]
Gal coord. (ep=J2000) : 		353.82714 +07.26551 [ ]
Fluxes (3) :
U 18.35 [~] D 2007A&A...469..807L
B 18.75 [~] D 2007A&A...469..807L
V 18.3 [~] D 2007A&A...469..807L
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Hierarchy : number of linked objects
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Identifiers (15) :
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4U 1704-30 INTREF 736 MXB 1658-298 2XMM J170206.6-295642
3A 1658-298 MAXI J1702-301 V* V2134 Oph [BM83] X1658-298
1H 1658-298 MXB 1659-29 XB 1658-298 [FLM99] Star F
H 1658-298 MXB 1659-298 XB 1659-29

References (381 between 1850 and 2026) (Total 381)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
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Observing logs

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External archives :

Archive data at HEASARC - High-Energy Astrophysics Science Archive Research Center

Data at NED - NASA/IPAC Extragalactic Database : MXB 1658-298

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V* V2134 Oph

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