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Physical Review D
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arXiv.org e-Print Archive
Preprint . 2010
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Physical Review D
Article . 2010 . Peer-reviewed
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https://dx.doi.org/10.48550/ar...
Article . 2010
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Bag model and quark star

descriptionPublicationkeyboard_double_arrow_right Article , Preprint 21 Sep 2010Embargo end date: 01 Jan 2010Publisher:American Physical Society (APS)Journal:Physical Review D, volume 82 (issn: 1550-7998, eissn: 1550-2368, Copyright policy )
Authors: Hong-Shi Zong; Hua Li; Xin-Lian Luo;

doi: 10.1103/physrevd.82.065017 , 10.48550/arxiv.1008.5019

arXiv: http://arxiv.org/abs/1008.5019

Abstract

In this paper, incorporating the property of the vacuum negative pressure, namely, the bag constant, we presented a new model of the equation of state (EOS) of quark matter at finite chemical potential and zero temperature. By comparing our EOS with Fraga {\it et~al.}'s EOS and SQM1 model, one find that our EOS is softer than Fraga {\it et~al.}'s EOS and SQM1 model. The reason for this difference is analyzed. With these results we investigate the structure of quark star. A comparison between our model of quark star and other models is made. The obtained mass of quark star is $ 1.3 \sim 1.66 M_\odot$ and the radius is $9.5 \sim 14 Km$. One can see that our star's compactness is smaller than that of other two models.

11 pages, 4 figures

Related Organizations
Keywords

Nuclear Theory (nucl-th), High Energy Physics - Phenomenology, High Energy Physics - Phenomenology (hep-ph), Astrophysics - Solar and Stellar Astrophysics, Nuclear Theory, FOS: Physical sciences, Solar and Stellar Astrophysics (astro-ph.SR)

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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
20
Top 10%
Average
Top 10%
Green
bronze
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