2021ApJ...915..109S

Query : 2021ApJ...915..109S

2021ApJ...915..109S - Astrophys. J., 915, 109-109 (2021/July-2)

Mass and radius relations of quarkyonic stars using an excluded-volume model.

SEN S. and SIVERTSEN L.

Abstract (from CDS):

Inspired by the excluded-volume model for isospin symmetric quarkyonic matter of Jeong et al., we construct an excluded-volume model for a charge-neutral quarkyonic phase whose hadronic sector contains only neutrons. We refer to this model as quarkyonic neutron matter. We compute the equation of state for this model and solve the Tolman-Oppenhermer-Volkoff equations to obtain mass and radius relations relevant for neutron stars. The most straightforward extension of the model for symmetric quarkyonic matter of Jeong et al. to quarkyonic neutron matter does not satisfy the mass-radius constraints from neutron star measurements. However, we show that by incorporating appropriate nuclear interactions in the excluded-volume model, one can produce mass-radius relations that lie within the constraints obtained from gravitational waves of binary neutron star mergers and maximum-mass measurements of neutron stars.

Abstract Copyright: © 2021. The American Astronomical Society. All rights reserved.

Journal keyword(s): Neutron stars - Nuclear physics - High energy astrophysics

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 PSR J0030+0451 Psr 00 30 27.42348 +04 51 39.7144           ~ 596 1

Query : 2021ApJ...915..109S

Basic data :
PSR J0030+0451 -- Pulsar
Other object types: otypes_help 		gam (2AGL,0FGL,...), Psr (2010ApJS,PSR), X (RX,2XMM,...), * ([KLS2003]), Rad (NVSS)
ICRS coord. (ep=J2000) : 		00 30 27.42348 +04 51 39.7144 (Radio) [ 0.74730 1.7 90 ] B 2024MNRAS.530..287S
FK4 coord. (ep=B1950 eq=1950) : 		00 27 52.98361 +04 35 05.5159 [ 0.74730 1.7 90 ]
Gal coord. (ep=J2000) : 		113.14112887 -57.61132614 [ 0.74730 1.7 90 ]
Proper motions mas/yr : 		-6.4 1 [1.1 2 90] C 2024MNRAS.530..287S
Parallaxes (mas): 		2.91 [0.18] C 2024MNRAS.530..287S
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Identifiers (15) :
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PSR J0030+0451 2FGL J0030.4+0450 NVSS J003027+045139 9Y-MST J0030+0454
2AGL J0032+0512c 3FGL J0030.4+0451 RX J0030.4+0451 [BTL2000] 10
0FGL J0030.3+0450 4FGL J0030.4+0451 2XMM J003027.4+045139 [KLS2003] 6
1FGL J0030.4+0451 FL8Y J0030.4+0451 3XMM J003027.4+045139

References (596 between 1850 and 2026) (Total 596)
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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Collections of Measurements Description of Measurements

Distance : 2    Plx : 1    PM : 1   

   

Observing logs
XMM : 1   

   

External archives :

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

Data at NED - NASA/IPAC Extragalactic Database : PSR J0030+0451

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NVSS J003027+045139

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